Air Quality Recipes

.title[
# Air Quality Recipes
]
.subtitle[
## Package APIs for R Dabblers
]
.author[
### Jonathan Callahan
]
.date[
### June 21, 2022
]

---

# Giving credit

What I'll show represents the work of many people and support from several 
different organizations:

* US Forest Service AirFire Team
* South Coast Air Quality Management District
* Incorporated Research Institutions for Seismology
* Mazama Science

&nbsp;

.center[
  ![USFS](images/USFS_logo.png) &nbsp;
  ![SCAQMD](images/SCAQMD_logo.jpg) &nbsp;
  ![IRIS](images/IRIS_logo.png)
  ![MazamaScience](images/MazamaScience_logo.png)
]

---

# My winding path

**Spectroscopy in graduate school** 
&nbsp; - computers and data visualization

**Scientist/Engineer at NOAA's PMEL** 
&nbsp; - weather data and open source software

**CEO of Mazama Science** 
&nbsp; - writing R packages 
&nbsp; - air quality data 
&nbsp; - mentoring young people

---

# Air Quality

---

## Air Quality is important!

[World Economic Forum](https://www.weforum.org/agenda/2022/05/air-pollution-killing-millions-how-can-we-tackle/) May 25, 2022

"Air pollution ... claims the lives of 7 million people every year."

[World Bank Blog](https://blogs.worldbank.org/developmenttalk/air-pollution-kills-evidence-global-analysis-exposure-and-poverty) May 18, 2022

"... air pollution can reinforce socioeconomic inequalities."

"2.8 billion people face hazardous air pollution levels."

[BBC](https://www.bbc.com/future/article/20220405-the-fungi-cleaning-new-delhis-air#:~:text=Twenty%2Done%20of%20the%20world's,toxic%20air%20in%20the%20country.) April 04, 2022

"Twenty-one of the world's 30 cities with the worst levels of air pollution are in India."

---

## Air Quality data consumers

Lots of people want to work with Air Quality data:

* Air Qualty Management Districts (AQMDs)
* Public health agencies
* Schools
* Hospitals
* Researchers
* Graduate Students
* Citizen Scientists

&nbsp;

---

## Air Quality analyst skills

Many people in the air quality community still use Excel.

Some folks do data munging in R ...

&nbsp; &nbsp; &nbsp; ... so they can continue working in Excel.

But R and RStudio could be the _**perfect tool**_ ...

* scripted and reproducible
* excellent graphics
* interactive data visualization
* _packages focused on air quality?_

---

## Goals for Air Quality R packages

* Meet the needs of air quality analysts.
* Use systematic naming for objects and functions.
* Allow chaining of results.
* Use a compact data model.
* Provide good graphics.
* Provide lots of documentation and examples.

&nbsp;

---

# Air Quality Packages

---

## The _Mazama_ package suite

[MazamaCoreUtils](https://mazamascience.github.io/MazamaCoreUtils/)
-- utilities for production code 
[MazamaSpatialUtils](http://mazamascience.github.io/MazamaSpatialUtils/) 
-- spatial searching 
[MazamaLocationUtils](http://mazamascience.github.io/MazamaLocationUtils/) 
-- management of spatial metadata 
[MazamaTimeSeries](http://mazamascience.github.io/MazamaTimeSeries/) 
-- environmental time series 
[AirMonitor](http://mazamascience.github.io/AirMonitor/) 
-- processing air quality monitoring data 
[AirMonitorPlots](http://mazamascience.github.io/AirMonitorPlots/) 
-- plotting for AirMonitor

&nbsp;

---

## MazamaCoreUtils

Utilities for writing _operational_ code.

* Python style logging
* Simple error messaging
* Cache management
* API key handling
* Date-time parsing
* Lat/lon validation and uniqueID creation
* Source code linting

---

**Locations and Times (timezones are required)**

```r
MazamaCoreUtils::createLocationID(
  longitude = -127.27, 
  latitude = 47.45
)
## [1] "7d192358bb09f94e"

MazamaCoreUtils::parseDatetime(
  datetime = "2021-06-20 05:33", 
  timezone = "America/Los_Angeles"
)
## [1] "2021-06-20 05:33:00 PDT"

MazamaCoreUtils::dateSequence(
  startdate = 20210620, 
  enddate = 20210622,
  timezone = "America/Los_Angeles"
)
## [1] "2021-06-20 PDT" "2021-06-21 PDT" "2021-06-22 PDT"
```

???

Notice the explicit naming of arguments: longitude, latitude, datetime, timezone, _etc._
  
Using explicit, complete names is important. No more guessing what shorthand is
used for longitude ("lon", "lng", "long", ...).

---

## MazamaSpatialUtils

GIS point-in-polygon searches made simple.

**Harmonized Datasets (plus simplified versions)**

```
 * 2.1M EEZCountries.RData
 *  15M NaturalEarthAdm1.RData
 *  61M OSMTimezones.RData
 * 3.6M TMWorldBorders.RData
 *  48MTerrestrialEcoregions.RData
 * 7.5M USCensus115thCongress.RData
 *  17M USCensusCounties.RData
 * 4.6M USCensusStates.RData
```
 
---

```r
lons <- seq(0,20,5)
lats <- seq(40,60,5)

MazamaSpatialUtils::getCountryCode(lons, lats)
## [1] "ES" "FR" "DE" "DK" "FI"

MazamaSpatialUtils::getCountryName(lons, lats)
## [1] "Spain"   "France"  "Germany" "Denmark" "Finland"

MazamaSpatialUtils::getTimezone(lons, lats)
## [1] "Europe/Madrid"     "Europe/Paris"     
## [3] "Europe/Berlin"     "Europe/Copenhagen"
## [5] "Europe/Mariehamn"

MazamaSpatialUtils::getStateName(
  longitude = lons, 
  latitude = lats, 
  useBuffering = TRUE
)
## [1] "Castellón"   "Drôme"       "Bayern"      "Hovedstaden"
## [5] "Lemland"
```

???

The `useBuffering` argument is important when your location is just outside a 
polygon, perhaps on a peninsula or an island.  This is a case where we handle
the literal and littoral "edge cases" and provide what people expect.

---

---

## MazamaLocationUtils

Instrument deployments -- aka "known locations".

**Problem**
* Many enviornmental time series are stationary.
* Site locations metadata is expensive to acquire.
* GPS locations can have "jitter".
* Instruments move and get replaced.

**Solution**
* Keep a table of known locations.
* Provide tools to find nearest location.

---

## MazamaTimeSeries

Compact data model -- separate `meta` and `data`.

* Time-independent metadata goes in the `meta` table.
* Time-dependent measurements go in the `data` table.
* A `deviceDeploymentID` connects `meta` and `data`.
* Multiple Time Series (_'mts'_) share a common time axis.
* Reduces file sizes by factor of 10-100.
* Reduces memory footprint by factor of 10-100.

---

Data model is very compact but not "tidy". So we need our own manipulation
functions:

* `mts_collapse()`
* `mts_combine()`
* `mts_distinct()`
* `mts_filterData()`
* `mts_filterDatetime()`
* `mts_filterMeta()`
* `mts_getDistance()`
* `mts_isEmpty()`
* `mts_select()`
* `mts_summarize()`
* `mts_trimDate()`

???

Function names begin with a prefix that identifies the type of object they
work on and return. In the case an "mts" aka "MultipleTimeSeries" object.

---

## AirMonitor

Work with pre-processed Air Quality data.

* Maintained by the US Forest Service AirFire group.
* PM2.5 data from regulatory and temporary monitors.
* Updated every few minutes.
* Archives go back a decade.
* Used in operational sites: [Monitoring v4](https://tools.airfire.org/monitoring/v4) and [Fire & Smoke Map](https://fire.airnow.gov).
* Database is accessible to anyone.

---

# Recipes

---

## What is a recipe?

```
Cake <-
 flour %>%
 add_sugar %>%
 add_eggs %>%
 add_other_flavors %>%
 mix %>%
 pour_into_cake_pan %>%
 bake_in_oven_at_350 %>%
 remove_and_cool %>%
 add_icing %>%
 add_sprinkles
```
&nbsp;

---

## Our first Air Quality recipe

```r
library(AirMonitor)

Camp_Fire <-
 monitor_loadAnnual(2018) %>%
 monitor_filter(stateCode == 'CA') %>%
 monitor_filterDate(
 startdate = "2018-11-08",
 enddate = "2018-11-23",
 timezone = "America/Los_Angeles"
 ) %>%
 monitor_dropEmpty()
```

???

Easy to understand what is happening.

---

```r
monitor_leaflet(Camp_Fire)
```

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Theater<\/b> 4 µg/m3<\/b> on November 08, 2018 at 08:00 UTC 23932caa3338b243_060072002<\/b> locationID = 23932caa3338b243 deviceID = 060072002 Butte County, CA timezone = America/Los_Angeles longitude = -121.59135, latitude = 39.77919 <hr>","NPT1002<\/b> 7 µg/m3<\/b> on November 15, 2018 at 21:00 UTC f4df28914dfde235_apcd.1039<\/b> locationID = f4df28914dfde235 deviceID = apcd.1039 NA County, CA timezone = America/Los_Angeles longitude = -117.1397, latitude = 32.80957 <hr>","NPT1002<\/b> 9 µg/m3<\/b> on November 14, 2018 at 01:00 UTC 198ad981d956a4af_apcd.1039<\/b> locationID = 198ad981d956a4af deviceID = apcd.1039 NA County, CA timezone = America/Los_Angeles longitude = -117.1341, latitude = 32.80964 <hr>","Tahoe City<\/b> 22 µg/m3<\/b> on November 10, 2018 at 22:00 UTC f7f10f2abd68c017_060611004<\/b> locationID = f7f10f2abd68c017 deviceID = 060611004 Placer County, CA timezone = America/Los_Angeles longitude = -120.1488, latitude = 39.166 <hr>","NCORE - Bishop<\/b> 22 µg/m3<\/b> on November 19, 2018 at 00:00 UTC dba650055b93cf2a_060270002<\/b> locationID = dba650055b93cf2a deviceID = 060270002 Inyo County, CA timezone = America/Los_Angeles longitude = -118.330835, latitude = 37.360701 <hr>","Lake Elsinore - W. Flint Street<\/b> 26 µg/m3<\/b> on November 11, 2018 at 11:00 UTC 64f1800881a058e1_060659001<\/b> locationID = 64f1800881a058e1 deviceID = 060659001 Riverside County, CA timezone = America/Los_Angeles longitude = -117.331027, latitude = 33.676535 <hr>","1051 Kernville EBAM<\/b> 28 µg/m3<\/b> on November 15, 2018 at 02:00 UTC 6dab826ad6435585_usfs.1051<\/b> locationID = 6dab826ad6435585 deviceID = usfs.1051 NA County, CA timezone = America/Los_Angeles longitude = -120.1957, latitude = 39.40381 <hr>","Joshua Tree NP - Cottonwood Canyon 2<\/b> 30 µg/m3<\/b> on November 11, 2018 at 11:00 UTC 3459cd969fabfd93_060650010<\/b> locationID = 3459cd969fabfd93 deviceID = 060650010 Riverside County, CA timezone = America/Los_Angeles longitude = -115.8201, latitude = 33.7472 <hr>","Temecula (Lake Skinner)<\/b> 32 µg/m3<\/b> on November 11, 2018 at 16:00 UTC 6da07b2bfb32d06f_060650016<\/b> locationID = 6da07b2bfb32d06f deviceID = 060650016 Riverside County, CA timezone = America/Los_Angeles longitude = -117.072197, latitude = 33.583099 <hr>","Yreka<\/b> 33 µg/m3<\/b> on November 21, 2018 at 07:00 UTC 167781c1709fcd8a_060932001<\/b> locationID = 167781c1709fcd8a deviceID = 060932001 Siskiyou County, CA timezone = America/Los_Angeles longitude = -122.63359, latitude = 41.72679 <hr>","Truckee BAM<\/b> 34 µg/m3<\/b> on November 20, 2018 at 13:00 UTC 79a4629905c81f6f_060571001<\/b> locationID = 79a4629905c81f6f deviceID = 060571001 Nevada County, CA timezone = America/Los_Angeles longitude = -120.170303, latitude = 39.3386 <hr>","Santa Barbara<\/b> 34 µg/m3<\/b> on November 20, 2018 at 05:00 UTC 9cfabb86474d3264_060830011<\/b> locationID = 9cfabb86474d3264 deviceID = 060830011 Santa Barbara County, CA timezone = America/Los_Angeles longitude = -119.69091, latitude = 34.42775 <hr>","Alpine<\/b> 35 µg/m3<\/b> on November 11, 2018 at 16:00 UTC 7da4782ff2a7189d_060731006<\/b> locationID = 7da4782ff2a7189d deviceID = 060731006 San Diego County, CA timezone = America/Los_Angeles longitude = -116.768326, latitude = 32.842297 <hr>","Camp Pendleton<\/b> 36 µg/m3<\/b> on November 19, 2018 at 09:00 UTC fd451a4c376d20f5_060731008<\/b> locationID = fd451a4c376d20f5 deviceID = 060731008 San Diego County, CA timezone = America/Los_Angeles longitude = -117.396156, latitude = 33.217026 <hr>","Lee Vining<\/b> 37 µg/m3<\/b> on November 22, 2018 at 04:00 UTC 41f4094e93f7e071_060510005<\/b> locationID = 41f4094e93f7e071 deviceID = 060510005 Mono County, CA timezone = America/Los_Angeles longitude = -119.120278, latitude = 37.962069 <hr>","El Cajon - Lexington Elementary School<\/b> 37 µg/m3<\/b> on November 20, 2018 at 03:00 UTC 0080f08c90cc64ea_060731022<\/b> locationID = 0080f08c90cc64ea deviceID = 060731022 San Diego County, CA timezone = America/Los_Angeles longitude = -116.944222, latitude = 32.789561 <hr>","Piru - Pacific<\/b> 38 µg/m3<\/b> on November 18, 2018 at 01:00 UTC 759e9989702fdf50_061110009<\/b> locationID = 759e9989702fdf50 deviceID = 061110009 Ventura County, CA timezone = America/Los_Angeles longitude = -118.80998, latitude = 34.40428 <hr>","Lone Pine Paiute/Shoshone Tribe-CA<\/b> 40 µg/m3<\/b> on November 20, 2018 at 03:00 UTC b450514f9261c130_060271018<\/b> locationID = b450514f9261c130 deviceID = 060271018 Inyo County, CA timezone = America/Los_Angeles longitude = -118.04, latitude = 36.5975 <hr>","Banning - South Hathaway Street<\/b> 40 µg/m3<\/b> on November 11, 2018 at 09:00 UTC 4419097d8357a40b_060650012<\/b> locationID = 4419097d8357a40b deviceID = 060650012 Riverside County, CA timezone = America/Los_Angeles longitude = -116.858419, latitude = 33.920758 <hr>","San Luis Obispo - Higuera St<\/b> 41 µg/m3<\/b> on November 18, 2018 at 05:00 UTC 04f925887d054d86_060792006<\/b> locationID = 04f925887d054d86 deviceID = 060792006 San Luis Obispo County, CA timezone = America/Los_Angeles longitude = -120.6693, latitude = 35.25651 <hr>","Goleta<\/b> 42 µg/m3<\/b> on November 19, 2018 at 03:00 UTC d44238e2b013dca7_060832011<\/b> locationID = d44238e2b013dca7 deviceID = 060832011 Santa Barbara County, CA timezone = America/Los_Angeles longitude = -119.827797, latitude = 34.445301 <hr>","Lancaster-Division<\/b> 45 µg/m3<\/b> on November 11, 2018 at 05:00 UTC e3a75c326a9bf2b0_060379033<\/b> locationID = e3a75c326a9bf2b0 deviceID = 060379033 Los Angeles County, CA timezone = America/Los_Angeles longitude = -118.130689, latitude = 34.669589 <hr>","Mojave - 923 Poole St.<\/b> 48 µg/m3<\/b> on November 16, 2018 at 20:00 UTC b1438bcf547fe628_060290011<\/b> locationID = b1438bcf547fe628 deviceID = 060290011 Kern County, CA timezone = America/Los_Angeles longitude = -118.14778, latitude = 35.05045 <hr>","Riverside - Rubidoux<\/b> 48 µg/m3<\/b> on November 18, 2018 at 09:00 UTC c7cc2b21d9f11f15_060658001<\/b> locationID = c7cc2b21d9f11f15 deviceID = 060658001 Riverside County, CA timezone = America/Los_Angeles longitude = -117.415831, latitude = 33.999449 <hr>","Victorville - Park Avenue<\/b> 48 µg/m3<\/b> on November 11, 2018 at 06:00 UTC cf96cef6fc35faf3_060710306<\/b> locationID = cf96cef6fc35faf3 deviceID = 060710306 San Bernardino County, CA timezone = America/Los_Angeles longitude = -117.32555, latitude = 34.510955 <hr>","Santa Maria - Broadway<\/b> 48 µg/m3<\/b> on November 17, 2018 at 04:00 UTC 8e2a396533e04214_060831008<\/b> locationID = 8e2a396533e04214 deviceID = 060831008 Santa Barbara County, CA timezone = America/Los_Angeles longitude = -120.435611, latitude = 34.942872 <hr>","Lebec<\/b> 50 µg/m3<\/b> on November 08, 2018 at 20:00 UTC 5f3a04d606c80aa6_060292009<\/b> locationID = 5f3a04d606c80aa6 deviceID = 060292009 Kern County, CA timezone = America/Los_Angeles longitude = -118.8647, latitude = 34.8416 <hr>","Otay Mesa - Donovan<\/b> 52 µg/m3<\/b> on November 16, 2018 at 08:00 UTC a9c5ff5ab0bada69_060731014<\/b> locationID = a9c5ff5ab0bada69 deviceID = 060731014 San Diego County, CA timezone = America/Los_Angeles longitude = -116.929486, latitude = 32.579361 <hr>","Mariposa 1000<\/b> 52 µg/m3<\/b> on November 18, 2018 at 02:00 UTC aa0cee2d9f2085f8_mariposa.1000<\/b> locationID = aa0cee2d9f2085f8 deviceID = mariposa.1000 NA County, CA timezone = America/Los_Angeles longitude = -119.9681, latitude = 37.48824 <hr>","Santa Clarita<\/b> 54 µg/m3<\/b> on November 10, 2018 at 21:00 UTC 602bb5fe6ae61f95_060376012<\/b> locationID = 602bb5fe6ae61f95 deviceID = 060376012 Los Angeles County, CA timezone = America/Los_Angeles longitude = -118.5283, latitude = 34.3833 <hr>","Nipomo Mesa CDF<\/b> 55 µg/m3<\/b> on November 12, 2018 at 02:00 UTC aba40f930482295b_060792007<\/b> locationID = aba40f930482295b deviceID = 060792007 San Luis Obispo County, CA timezone = America/Los_Angeles longitude = -120.58777, latitude = 35.04676 <hr>","Atascadero2<\/b> 55 µg/m3<\/b> on November 09, 2018 at 05:00 UTC 7d389f9627deb7c7_060798002<\/b> locationID = 7d389f9627deb7c7 deviceID = 060798002 San Luis Obispo County, CA timezone = America/Los_Angeles longitude = -120.666203, latitude = 35.494556 <hr>","Mira Loma - Van Buren<\/b> 56 µg/m3<\/b> on November 11, 2018 at 06:00 UTC 9ca183a5218532e1_060658005<\/b> locationID = 9ca183a5218532e1 deviceID = 060658005 Riverside County, CA timezone = America/Los_Angeles longitude = -117.4925, latitude = 33.996387 <hr>","Bishop Paiute Tribe-CA<\/b> 56 µg/m3<\/b> on November 17, 2018 at 07:00 UTC c0568b52ab2910ef_060271023<\/b> locationID = c0568b52ab2910ef deviceID = 060271023 Inyo County, CA timezone = America/Los_Angeles longitude = -118.4167, latitude = 37.3667 <hr>","Pinehurst<\/b> 57 µg/m3<\/b> on November 13, 2018 at 16:00 UTC 9afcd82a19794151_840060199999<\/b> locationID = 9afcd82a19794151 deviceID = 840060199999 Fresno County, CA timezone = America/Los_Angeles longitude = -119.0189, latitude = 36.6972 <hr>","Mesa 2 /Nipomo<\/b> 58 µg/m3<\/b> on November 13, 2018 at 07:00 UTC b3605b19ded792e2_060792004<\/b> locationID = b3605b19ded792e2 deviceID = 060792004 San Luis Obispo County, CA timezone = America/Los_Angeles longitude = -120.56389, latitude = 35.02079 <hr>","Anaheim<\/b> 61 µg/m3<\/b> on November 19, 2018 at 06:00 UTC 7bcc8649435d38f1_060590007<\/b> locationID = 7bcc8649435d38f1 deviceID = 060590007 Orange County, CA timezone = America/Los_Angeles longitude = -117.938509, latitude = 33.830586 <hr>","Chester BAM<\/b> 62 µg/m3<\/b> on November 14, 2018 at 11:00 UTC 5642931558b83d66_060631007<\/b> locationID = 5642931558b83d66 deviceID = 060631007 Plumas County, CA timezone = America/Los_Angeles longitude = -121.235001, latitude = 40.301899 <hr>","Ojai - Ojai Ave.<\/b> 62 µg/m3<\/b> on November 16, 2018 at 01:00 UTC 809964b77917b17e_061111004<\/b> locationID = 809964b77917b17e deviceID = 061111004 Ventura County, CA timezone = America/Los_Angeles longitude = -119.2313, latitude = 34.44806 <hr>","Quincy BAM<\/b> 63 µg/m3<\/b> on November 18, 2018 at 02:00 UTC 0f46c5073a4b8288_060639901<\/b> locationID = 0f46c5073a4b8288 deviceID = 060639901 Plumas County, CA timezone = America/Los_Angeles longitude = -120.9478, latitude = 39.9369 <hr>","Keeler<\/b> 65 µg/m3<\/b> on November 08, 2018 at 17:00 UTC 3b552e50b9267b5a_060271003<\/b> locationID = 3b552e50b9267b5a deviceID = 060271003 Inyo County, CA timezone = America/Los_Angeles longitude = -117.871, latitude = 36.4878 <hr>","Upland<\/b> 65 µg/m3<\/b> on November 11, 2018 at 12:00 UTC 371a20c69e686d31_060711004<\/b> locationID = 371a20c69e686d31 deviceID = 060711004 San Bernardino County, CA timezone = America/Los_Angeles longitude = -117.629096, latitude = 34.10366 <hr>","South Long Beach<\/b> 66 µg/m3<\/b> on November 19, 2018 at 03:00 UTC ce1e495545ba2f5a_060374004<\/b> locationID = ce1e495545ba2f5a deviceID = 060374004 Los Angeles County, CA timezone = America/Los_Angeles longitude = -118.175278, latitude = 33.792221 <hr>","Lompoc H Street<\/b> 69 µg/m3<\/b> on November 16, 2018 at 23:00 UTC 3315c93824e037bd_060832004<\/b> locationID = 3315c93824e037bd deviceID = 060832004 Santa Barbara County, CA timezone = America/Los_Angeles longitude = -120.456703, latitude = 34.637798 <hr>","Yosemite Village - Visitor Center<\/b> 74 µg/m3<\/b> on November 19, 2018 at 04:00 UTC 9f7489899d373324_060431001<\/b> locationID = 9f7489899d373324 deviceID = 060431001 Mariposa County, CA timezone = America/Los_Angeles longitude = -119.587094, latitude = 37.748707 <hr>","Glendora - Laurel<\/b> 74 µg/m3<\/b> on November 11, 2018 at 12:00 UTC 5a01c2d716990f69_060370016<\/b> locationID = 5a01c2d716990f69 deviceID = 060370016 Los Angeles County, CA timezone = America/Los_Angeles longitude = -117.8508, latitude = 34.1439 <hr>","Los Angeles - N. Main Street<\/b> 76 µg/m3<\/b> on November 11, 2018 at 05:00 UTC c457463e4ba83f93_060371103<\/b> locationID = c457463e4ba83f93 deviceID = 060371103 Los Angeles County, CA timezone = America/Los_Angeles longitude = -118.226755, latitude = 34.066429 <hr>","San Andreas<\/b> 77 µg/m3<\/b> on November 12, 2018 at 01:00 UTC 018592228ffbec63_060090001<\/b> locationID = 018592228ffbec63 deviceID = 060090001 Calaveras County, CA timezone = America/Los_Angeles longitude = -120.680277, latitude = 38.20185 <hr>","El Centro - 9th Street<\/b> 88 µg/m3<\/b> on November 17, 2018 at 14:00 UTC 2b51fab4dfaf4fc0_060251003<\/b> locationID = 2b51fab4dfaf4fc0 deviceID = 060251003 Imperial County, CA timezone = America/Los_Angeles longitude = -115.5617, latitude = 32.7917 <hr>","Crestline - Lake Gregory<\/b> 91 µg/m3<\/b> on November 11, 2018 at 10:00 UTC 9d351a51e74a87ec_060710005<\/b> locationID = 9d351a51e74a87ec deviceID = 060710005 San Bernardino County, CA timezone = America/Los_Angeles longitude = -117.272275, latitude = 34.243132 <hr>","King City AMS<\/b> 92 µg/m3<\/b> on November 17, 2018 at 04:00 UTC 027b1c6b135d09ba_060530008<\/b> locationID = 027b1c6b135d09ba deviceID = 060530008 Monterey County, CA timezone = America/Los_Angeles longitude = -121.126371, latitude = 36.209286 <hr>","Porterville-NFS<\/b> 96 µg/m3<\/b> on November 20, 2018 at 02:00 UTC df9db91b21de4b29_061072010<\/b> locationID = df9db91b21de4b29 deviceID = 061072010 Tulare County, CA timezone = America/Los_Angeles longitude = -119.055, latitude = 36.0319 <hr>","Mammoth Lakes<\/b> 97 µg/m3<\/b> on November 10, 2018 at 12:00 UTC ebee52f7a38dbe23_060510001<\/b> locationID = ebee52f7a38dbe23 deviceID = 060510001 Mono County, CA timezone = America/Los_Angeles longitude = -118.966515, latitude = 37.645718 <hr>","Visalia - N. Church Street<\/b> 98 µg/m3<\/b> on November 18, 2018 at 02:00 UTC 5da04d8d363471ac_061072002<\/b> locationID = 5da04d8d363471ac deviceID = 061072002 Tulare County, CA timezone = America/Los_Angeles longitude = -119.29095, latitude = 36.33252 <hr>","ARB 1025 (offline)<\/b> 102 µg/m3<\/b> on November 22, 2018 at 08:00 UTC a46efee7c8d05ee9_arb2.1025<\/b> locationID = a46efee7c8d05ee9 deviceID = arb2.1025 NA County, CA timezone = America/Los_Angeles longitude = -120.5933, latitude = 38.71435 <hr>","SLV Middle School AMS<\/b> 103 µg/m3<\/b> on November 11, 2018 at 05:00 UTC 71d8ec363f0b8318_060871005<\/b> locationID = 71d8ec363f0b8318 deviceID = 060871005 Santa Cruz County, CA timezone = America/Los_Angeles longitude = -122.083092, latitude = 37.06315 <hr>","Carmel Valley AMS<\/b> 106 µg/m3<\/b> on November 10, 2018 at 19:00 UTC a9572a904a4ed46d_060530002<\/b> locationID = a9572a904a4ed46d deviceID = 060530002 Monterey County, CA timezone = America/Los_Angeles longitude = -121.73333, latitude = 36.48187 <hr>","Madera-City<\/b> 107 µg/m3<\/b> on November 20, 2018 at 03:00 UTC 0ca32b325ec46de0_060392010<\/b> locationID = 0ca32b325ec46de0 deviceID = 060392010 Madera County, CA timezone = America/Los_Angeles longitude = -120.0341, latitude = 36.9533 <hr>","Hollister AMS<\/b> 109 µg/m3<\/b> on November 11, 2018 at 00:00 UTC d09f8f20059b04c9_060690002<\/b> locationID = d09f8f20059b04c9 deviceID = 060690002 San Benito County, CA timezone = America/Los_Angeles longitude = -121.3621, latitude = 36.843425 <hr>","Zayante Fire Station<\/b> 112 µg/m3<\/b> on November 10, 2018 at 16:00 UTC 3e20a44d2c90c297_060879990<\/b> locationID = 3e20a44d2c90c297 deviceID = 060879990 Santa Cruz County, CA timezone = America/Los_Angeles longitude = -122.057206, latitude = 37.067003 <hr>","Boulder Creek<\/b> 112 µg/m3<\/b> on November 11, 2018 at 05:00 UTC 9c2be6b9ca83d646_060879993<\/b> locationID = 9c2be6b9ca83d646 deviceID = 060879993 Santa Cruz County, CA timezone = America/Los_Angeles longitude = -122.122127, latitude = 37.125861 <hr>","Fresno - Garland<\/b> 112 µg/m3<\/b> on November 20, 2018 at 08:00 UTC d3df63d86b5901fe_060190011<\/b> locationID = d3df63d86b5901fe deviceID = 060190011 Fresno County, CA timezone = America/Los_Angeles longitude = -119.77321, latitude = 36.78538 <hr>","ARB 1017 (offline)<\/b> 118 µg/m3<\/b> on November 20, 2018 at 12:00 UTC d2da8e74b77a9104_arb2.1017<\/b> locationID = d2da8e74b77a9104 deviceID = arb2.1017 NA County, CA timezone = America/Los_Angeles longitude = -122.9982, latitude = 38.50103 <hr>","Bakersfield - California Ave<\/b> 121 µg/m3<\/b> on November 20, 2018 at 18:00 UTC e85fddd1d9a3dc6c_060290014<\/b> locationID = e85fddd1d9a3dc6c deviceID = 060290014 Kern County, CA timezone = America/Los_Angeles longitude = -119.062613, latitude = 35.356615 <hr>","Gilory - 9th Street<\/b> 126 µg/m3<\/b> on November 16, 2018 at 18:00 UTC e75eb5a890d2b10e_060850002<\/b> locationID = e75eb5a890d2b10e deviceID = 060850002 Santa Clara County, CA timezone = America/Los_Angeles longitude = -121.574684, latitude = 36.999571 <hr>","Huron<\/b> 127 µg/m3<\/b> on November 18, 2018 at 18:00 UTC e8f98ea69c1a4ed8_060192008<\/b> locationID = e8f98ea69c1a4ed8 deviceID = 060192008 Fresno County, CA timezone = America/Los_Angeles longitude = -120.0991, latitude = 36.1994 <hr>","Felton Cal-Fire<\/b> 133 µg/m3<\/b> on November 10, 2018 at 21:00 UTC 36a970ed25e4d855_060879991<\/b> locationID = 36a970ed25e4d855 deviceID = 060879991 Santa Cruz County, CA timezone = America/Los_Angeles longitude = -122.074603, latitude = 37.0481 <hr>","Calexico - Ethel Street<\/b> 134 µg/m3<\/b> on November 17, 2018 at 12:00 UTC a4a63f79a6cd0a6a_060250005<\/b> locationID = a4a63f79a6cd0a6a deviceID = 060250005 Imperial County, CA timezone = America/Los_Angeles longitude = -115.48307, latitude = 32.67618 <hr>","Simi Valley - Cochran Street<\/b> 137 µg/m3<\/b> on November 09, 2018 at 11:00 UTC a862b101833860b1_061112002<\/b> locationID = a862b101833860b1 deviceID = 061112002 Ventura County, CA timezone = America/Los_Angeles longitude = -118.68369, latitude = 34.27632 <hr>","Merced - S. Coffee Ave<\/b> 139 µg/m3<\/b> on November 17, 2018 at 02:00 UTC 4c4aee423ba229f9_060470003<\/b> locationID = 4c4aee423ba229f9 deviceID = 060470003 Merced County, CA timezone = America/Los_Angeles longitude = -120.433601, latitude = 37.2817 <hr>","Thousand Oaks - Moorpark Road<\/b> 139 µg/m3<\/b> on November 10, 2018 at 16:00 UTC be47662a4efff05b_061110007<\/b> locationID = be47662a4efff05b deviceID = 061110007 Ventura County, CA timezone = America/Los_Angeles longitude = -118.87051, latitude = 34.21017 <hr>","Santa Cruz AMS<\/b> 140 µg/m3<\/b> on November 10, 2018 at 16:00 UTC 7a875733f97e23b0_060870007<\/b> locationID = 7a875733f97e23b0 deviceID = 060870007 Santa Cruz County, CA timezone = America/Los_Angeles longitude = -121.98822, latitude = 36.98332 <hr>","Tranquillity<\/b> 143 µg/m3<\/b> on November 18, 2018 at 19:00 UTC 02a186e457865ed0_060192009<\/b> locationID = 02a186e457865ed0 deviceID = 060192009 Fresno County, CA timezone = America/Los_Angeles longitude = -120.3822, latitude = 36.6324 <hr>","Auburn<\/b> 144 µg/m3<\/b> on November 12, 2018 at 01:00 UTC b4bbe9989c3de7c7_060610002<\/b> locationID = b4bbe9989c3de7c7 deviceID = 060610002 Placer County, CA timezone = America/Los_Angeles longitude = -121.103897, latitude = 38.937801 <hr>","Sequoia and Kings Canyon - Ash Mountain<\/b> 147 µg/m3<\/b> on November 13, 2018 at 18:00 UTC 1932dc525e58f3b3_061070009<\/b> locationID = 1932dc525e58f3b3 deviceID = 061070009 Tulare County, CA timezone = America/Los_Angeles longitude = -118.826897, latitude = 36.489399 <hr>","Reseda<\/b> 148 µg/m3<\/b> on November 10, 2018 at 16:00 UTC 063ed462f6ea8407_060371201<\/b> locationID = 063ed462f6ea8407 deviceID = 060371201 Los Angeles County, CA timezone = America/Los_Angeles longitude = -118.5331, latitude = 34.1992 <hr>","Cortina Rancheria<\/b> 149 µg/m3<\/b> on November 16, 2018 at 12:00 UTC 2b38c357ed3ded59_060110007<\/b> locationID = 2b38c357ed3ded59 deviceID = 060110007 Colusa County, CA timezone = America/Los_Angeles longitude = -122.286111, latitude = 39.015 <hr>","Kennedy Meadows<\/b> 161 µg/m3<\/b> on November 17, 2018 at 19:00 UTC 0ef6afd9b6d59f5c_840061079999<\/b> locationID = 0ef6afd9b6d59f5c deviceID = 840061079999 Tulare County, CA timezone = America/Los_Angeles longitude = -118.137, latitude = 36.0214 <hr>","SEKI1032 EBAM4<\/b> 161 µg/m3<\/b> on November 12, 2018 at 16:00 UTC 0282d73c8aba56cc_apcd.1032<\/b> locationID = 0282d73c8aba56cc deviceID = apcd.1032 NA County, CA timezone = America/Los_Angeles longitude = -118.7777, latitude = 36.56616 <hr>","Kernville<\/b> 172 µg/m3<\/b> on November 17, 2018 at 19:00 UTC a5e38ee5a7077e5c_840060299999<\/b> locationID = a5e38ee5a7077e5c deviceID = 840060299999 Kern County, CA timezone = America/Los_Angeles longitude = -118.4175, latitude = 35.755 <hr>","EBAM7 - Sac 5th St. Warehouse<\/b> 172 µg/m3<\/b> on November 19, 2018 at 15:00 UTC e766fd9d370d5f36_069999916<\/b> locationID = e766fd9d370d5f36 deviceID = 069999916 Mariposa County, CA timezone = America/Los_Angeles longitude = -120.1437, latitude = 37.74646 <hr>","Napa - Napa Valley College<\/b> 173 µg/m3<\/b> on November 16, 2018 at 01:00 UTC 905bed5b8085198b_060550004<\/b> locationID = 905bed5b8085198b deviceID = 060550004 Napa County, CA timezone = America/Los_Angeles longitude = -122.275024, latitude = 38.278849 <hr>","Redwood City<\/b> 181 µg/m3<\/b> on November 16, 2018 at 01:00 UTC 204520f83a9742d6_060811001<\/b> locationID = 204520f83a9742d6 deviceID = 060811001 San Mateo County, CA timezone = America/Los_Angeles longitude = -122.2022, latitude = 37.4828 <hr>","Portola<\/b> 182 µg/m3<\/b> on November 16, 2018 at 05:00 UTC 0b97822d89739950_060631010<\/b> locationID = 0b97822d89739950 deviceID = 060631010 Plumas County, CA timezone = America/Los_Angeles longitude = -120.471664, latitude = 39.808334 <hr>","LCAQMD1001<\/b> 186 µg/m3<\/b> on November 10, 2018 at 22:00 UTC a0cffa3af3f607a3_apcd.1038<\/b> locationID = a0cffa3af3f607a3 deviceID = apcd.1038 NA County, CA timezone = America/Los_Angeles longitude = -122.5972, latitude = 39.07474 <hr>","Weaverville<\/b> 191 µg/m3<\/b> on November 16, 2018 at 09:00 UTC 3cf38c450135e594_061050002<\/b> locationID = 3cf38c450135e594 deviceID = 061050002 Trinity County, CA timezone = America/Los_Angeles longitude = -122.941109, latitude = 40.734722 <hr>","Red Bluff - Walnut office<\/b> 192 µg/m3<\/b> on November 16, 2018 at 02:00 UTC 2616a29c3b699886_061030007<\/b> locationID = 2616a29c3b699886 deviceID = 061030007 Tehama County, CA timezone = America/Los_Angeles longitude = -122.255667, latitude = 40.170917 <hr>","San Jose - Jackson St.<\/b> 195 µg/m3<\/b> on November 16, 2018 at 04:00 UTC 2db75a63de1cdcd0_060850005<\/b> locationID = 2db75a63de1cdcd0 deviceID = 060850005 Santa Clara County, CA timezone = America/Los_Angeles longitude = -121.8947, latitude = 37.3483 <hr>","San Jose - Knox Ave<\/b> 199 µg/m3<\/b> on November 16, 2018 at 02:00 UTC cadba678f9e96640_060850006<\/b> locationID = cadba678f9e96640 deviceID = 060850006 Santa Clara County, CA timezone = America/Los_Angeles longitude = -121.849892, latitude = 37.338202 <hr>","ARB 1011 (Trinity C)<\/b> 201 µg/m3<\/b> on November 15, 2018 at 04:00 UTC b91b65c98ce2e88e_arb2.1011<\/b> locationID = b91b65c98ce2e88e deviceID = arb2.1011 NA County, CA timezone = America/Los_Angeles longitude = -121.0763, latitude = 38.89728 <hr>","Concord<\/b> 209 µg/m3<\/b> on November 16, 2018 at 19:00 UTC 68103540a2adcfcf_060130002<\/b> locationID = 68103540a2adcfcf deviceID = 060130002 Contra Costa County, CA timezone = America/Los_Angeles longitude = -122.025, latitude = 37.9383 <hr>","Oakland West<\/b> 210 µg/m3<\/b> on November 16, 2018 at 21:00 UTC 7157b3dbac7c2043_060010011<\/b> locationID = 7157b3dbac7c2043 deviceID = 060010011 Alameda County, CA timezone = America/Los_Angeles longitude = -122.282402, latitude = 37.8148 <hr>","Oakland<\/b> 217 µg/m3<\/b> on November 16, 2018 at 23:00 UTC ccdef3f0f6591e77_060010009<\/b> locationID = ccdef3f0f6591e77 deviceID = 060010009 Alameda County, CA timezone = America/Los_Angeles longitude = -122.169907, latitude = 37.743061 <hr>","Laney College<\/b> 218 µg/m3<\/b> on November 15, 2018 at 22:00 UTC 06c3f2a66f8b708e_060010012<\/b> locationID = 06c3f2a66f8b708e deviceID = 060010012 Alameda County, CA timezone = America/Los_Angeles longitude = -122.263376, latitude = 37.793624 <hr>","San Rafael<\/b> 218 µg/m3<\/b> on November 16, 2018 at 18:00 UTC fa6f30bf8fb4fc98_060410001<\/b> locationID = fa6f30bf8fb4fc98 deviceID = 060410001 Marin County, CA timezone = America/Los_Angeles longitude = -122.5189, latitude = 37.9722 <hr>","Berkeley Aquatic Park<\/b> 224 µg/m3<\/b> on November 15, 2018 at 22:00 UTC fc7e94fa9b4cf9c6_060010013<\/b> locationID = fc7e94fa9b4cf9c6 deviceID = 060010013 Alameda County, CA timezone = America/Los_Angeles longitude = -122.302741, latitude = 37.864767 <hr>","Willits Unified School District<\/b> 230 µg/m3<\/b> on November 10, 2018 at 04:00 UTC fa86065aa4671ed2_060452002<\/b> locationID = fa86065aa4671ed2 deviceID = 060452002 Mendocino County, CA timezone = America/Los_Angeles longitude = -123.35872, latitude = 39.39861 <hr>","Vacaville<\/b> 237 µg/m3<\/b> on November 16, 2018 at 02:00 UTC 4df56a6250a89033_060953002<\/b> locationID = 4df56a6250a89033 deviceID = 060953002 Solano County, CA timezone = America/Los_Angeles longitude = -121.9617, latitude = 38.3525 <hr>","San Francisco<\/b> 241 µg/m3<\/b> on November 16, 2018 at 21:00 UTC fa7ae26987a72cc4_060750005<\/b> locationID = fa7ae26987a72cc4 deviceID = 060750005 City and of San Francisco County, CA timezone = America/Los_Angeles longitude = -122.3978, latitude = 37.7658 <hr>","Vallejo<\/b> 245 µg/m3<\/b> on November 16, 2018 at 12:00 UTC 06173d881c6ef50e_060950004<\/b> locationID = 06173d881c6ef50e deviceID = 060950004 Solano County, CA timezone = America/Los_Angeles longitude = -122.237976, latitude = 38.102507 <hr>","1060 North Fork<\/b> 254 µg/m3<\/b> on November 08, 2018 at 21:00 UTC 906d3f4c37edce6c_usfs.1060<\/b> locationID = 906d3f4c37edce6c deviceID = usfs.1060 NA County, CA timezone = America/Los_Angeles longitude = -118.6171, latitude = 36.13834 <hr>","Anderson<\/b> 256 µg/m3<\/b> on November 10, 2018 at 03:00 UTC 9410a2a5f2be0d04_060890007<\/b> locationID = 9410a2a5f2be0d04 deviceID = 060890007 Shasta County, CA timezone = America/Los_Angeles longitude = -122.2978, latitude = 40.4531 <hr>","Pleasanton - Owens Ct.<\/b> 259 µg/m3<\/b> on November 17, 2018 at 00:00 UTC a5f68976d4d94e7e_060010015<\/b> locationID = a5f68976d4d94e7e deviceID = 060010015 Alameda County, CA timezone = America/Los_Angeles longitude = -121.903019, latitude = 37.701222 <hr>","Sebastopol<\/b> 266 µg/m3<\/b> on November 09, 2018 at 19:00 UTC a2c8943de9b7288b_060970004<\/b> locationID = a2c8943de9b7288b deviceID = 060970004 Sonoma County, CA timezone = America/Los_Angeles longitude = -122.818294, latitude = 38.403765 <hr>","Willows-Colusa<\/b> 273 µg/m3<\/b> on November 16, 2018 at 03:00 UTC ad30c5f4f8b7f894_060210003<\/b> locationID = ad30c5f4f8b7f894 deviceID = 060210003 Glenn County, CA timezone = America/Los_Angeles longitude = -122.190834, latitude = 39.53387 <hr>","El Rio - Rio Mesa School #2<\/b> 279 µg/m3<\/b> on November 11, 2018 at 17:00 UTC 57d7613a87a64318_061113001<\/b> locationID = 57d7613a87a64318 deviceID = 061113001 Ventura County, CA timezone = America/Los_Angeles longitude = -119.14318, latitude = 34.25239 <hr>","Livermore - Rincon<\/b> 287 µg/m3<\/b> on November 17, 2018 at 00:00 UTC 41f1aaf995e77b10_060010007<\/b> locationID = 41f1aaf995e77b10 deviceID = 060010007 Alameda County, CA timezone = America/Los_Angeles longitude = -121.784217, latitude = 37.687526 <hr>","Rio Vista<\/b> 287 µg/m3<\/b> on November 16, 2018 at 12:00 UTC 97c5805fc72f0c37_060959999<\/b> locationID = 97c5805fc72f0c37 deviceID = 060959999 Solano County, CA timezone = America/Los_Angeles longitude = -121.70564, latitude = 38.18839 <hr>","Davis - UCD Campus<\/b> 290 µg/m3<\/b> on November 16, 2018 at 01:00 UTC 8a3cdfd4a25a1af1_061130004<\/b> locationID = 8a3cdfd4a25a1af1 deviceID = 061130004 Yolo County, CA timezone = America/Los_Angeles longitude = -121.7734, latitude = 38.53455 <hr>","Colusa - Sunrise Blvd.<\/b> 294 µg/m3<\/b> on November 15, 2018 at 20:00 UTC da1687e135831f63_060111002<\/b> locationID = da1687e135831f63 deviceID = 060111002 Colusa County, CA timezone = America/Los_Angeles longitude = -121.99887, latitude = 39.18919 <hr>","Colfax<\/b> 296 µg/m3<\/b> on November 15, 2018 at 02:00 UTC c4bc940afc45e507_060610004<\/b> locationID = c4bc940afc45e507 deviceID = 060610004 Placer County, CA timezone = America/Los_Angeles longitude = -120.9528, latitude = 39.1003 <hr>","Elk Grove<\/b> 297 µg/m3<\/b> on November 16, 2018 at 17:00 UTC b438a5baebdbae7b_060670011<\/b> locationID = b438a5baebdbae7b deviceID = 060670011 Sacramento County, CA timezone = America/Los_Angeles longitude = -121.420838, latitude = 38.302591 <hr>","San Pablo - Rumrill<\/b> 302 µg/m3<\/b> on November 16, 2018 at 19:00 UTC 0377d688fd94f06e_060131004<\/b> locationID = 0377d688fd94f06e deviceID = 060131004 Contra Costa County, CA timezone = America/Los_Angeles longitude = -122.3571, latitude = 37.9604 <hr>","Stockton - Hazelton Street<\/b> 305 µg/m3<\/b> on November 16, 2018 at 16:00 UTC b763477fded51e53_060771002<\/b> locationID = b763477fded51e53 deviceID = 060771002 San Joaquin County, CA timezone = America/Los_Angeles longitude = -121.26897, latitude = 37.95075 <hr>","Modesto - 14th Street<\/b> 317 µg/m3<\/b> on November 16, 2018 at 19:00 UTC a932081238500703_060990005<\/b> locationID = a932081238500703 deviceID = 060990005 Stanislaus County, CA timezone = America/Los_Angeles longitude = -120.994212, latitude = 37.642165 <hr>","Ukiah Library<\/b> 345 µg/m3<\/b> on November 09, 2018 at 21:00 UTC 6bbab08e3786ef66_060450006<\/b> locationID = 6bbab08e3786ef66 deviceID = 060450006 Mendocino County, CA timezone = America/Los_Angeles longitude = -123.206528, latitude = 39.150478 <hr>","Woodland<\/b> 351 µg/m3<\/b> on November 16, 2018 at 02:00 UTC 424761ffc3ff1c76_061131003<\/b> locationID = 424761ffc3ff1c76 deviceID = 061131003 Yolo County, CA timezone = America/Los_Angeles longitude = -121.7278, latitude = 38.6619 <hr>","Turlock - S. Minaret Street<\/b> 354 µg/m3<\/b> on November 16, 2018 at 18:00 UTC f3c520fb972d10c6_060990006<\/b> locationID = f3c520fb972d10c6 deviceID = 060990006 Stanislaus County, CA timezone = America/Los_Angeles longitude = -120.8358, latitude = 37.4883 <hr>","Folsom<\/b> 408 µg/m3<\/b> on November 11, 2018 at 01:00 UTC 6f4aa99a58207ac6_060670012<\/b> locationID = 6f4aa99a58207ac6 deviceID = 060670012 Sacramento County, CA timezone = America/Los_Angeles longitude = -121.164457, latitude = 38.683304 <hr>","Downtown Sacramento - T Street<\/b> 421 µg/m3<\/b> on November 16, 2018 at 06:00 UTC 8ca91d2521b701d4_060670010<\/b> locationID = 8ca91d2521b701d4 deviceID = 060670010 Sacramento County, CA timezone = America/Los_Angeles longitude = -121.49311, latitude = 38.56844 <hr>","Arden Arcade - Del Paso Manor<\/b> 447 µg/m3<\/b> on November 11, 2018 at 13:00 UTC 342b6e72fc99528b_060670006<\/b> locationID = 342b6e72fc99528b deviceID = 060670006 Sacramento County, CA timezone = America/Los_Angeles longitude = -121.368007, latitude = 38.613804 <hr>","Lincoln<\/b> 457 µg/m3<\/b> on November 16, 2018 at 01:00 UTC edfa41bc240b14db_060612001<\/b> locationID = edfa41bc240b14db deviceID = 060612001 Placer County, CA timezone = America/Los_Angeles longitude = -121.3, latitude = 38.89 <hr>","TracyAP<\/b> 458 µg/m3<\/b> on November 16, 2018 at 20:00 UTC 6389ab4d46f225d1_060773005<\/b> locationID = 6389ab4d46f225d1 deviceID = 060773005 San Joaquin County, CA timezone = America/Los_Angeles longitude = -121.4406, latitude = 37.6825 <hr>","Sloughhouse<\/b> 494 µg/m3<\/b> on November 11, 2018 at 04:00 UTC db782b0970a271dc_060675003<\/b> locationID = db782b0970a271dc deviceID = 060675003 Sacramento County, CA timezone = America/Los_Angeles longitude = -121.211131, latitude = 38.494475 <hr>","Grass Valley<\/b> 503 µg/m3<\/b> on November 15, 2018 at 01:00 UTC 4ffd29b87ac380f0_060570005<\/b> locationID = 4ffd29b87ac380f0 deviceID = 060570005 Nevada County, CA timezone = America/Los_Angeles longitude = -121.055603, latitude = 39.234402 <hr>","ARB 1023 (offline)<\/b> 506 µg/m3<\/b> on November 16, 2018 at 01:00 UTC d4c67c80a028a5f5_arb2.1023<\/b> locationID = d4c67c80a028a5f5 deviceID = arb2.1023 NA County, CA timezone = America/Los_Angeles longitude = -121.5041, latitude = 38.67135 <hr>","Yuba City<\/b> 543 µg/m3<\/b> on November 15, 2018 at 16:00 UTC dfaa8256fd6dc12c_061010003<\/b> locationID = dfaa8256fd6dc12c deviceID = 061010003 Sutter County, CA timezone = America/Los_Angeles longitude = -121.61884, latitude = 39.13868 <hr>","Roseville - N.Sunrise/Douglas<\/b> 567 µg/m3<\/b> on November 11, 2018 at 01:00 UTC f6f94115dd36cfbe_060610006<\/b> locationID = f6f94115dd36cfbe deviceID = 060610006 Placer County, CA timezone = America/Los_Angeles longitude = -121.26498, latitude = 38.74643 <hr>","Salinas AMS<\/b> 657 µg/m3<\/b> on November 10, 2018 at 23:00 UTC c9fe9c3c096b858a_060531003<\/b> locationID = c9fe9c3c096b858a deviceID = 060531003 Monterey County, CA timezone = America/Los_Angeles longitude = -121.623271, latitude = 36.694261 <hr>","ARB 1041 (offline)<\/b> 659 µg/m3<\/b> on November 14, 2018 at 22:00 UTC 20b4c390118e3517_arb2.1041<\/b> locationID = 20b4c390118e3517 deviceID = arb2.1041 NA County, CA timezone = America/Los_Angeles longitude = -121.5448, latitude = 39.43512 <hr>","ARB 1010 (offline)<\/b> 662 µg/m3<\/b> on November 17, 2018 at 08:00 UTC d337a5fd470b0e6e_arb2.1010<\/b> locationID = d337a5fd470b0e6e deviceID = arb2.1010 NA County, CA timezone = America/Los_Angeles longitude = -121.6496, latitude = 39.64909 <hr>","Gridley<\/b> 769 µg/m3<\/b> on November 11, 2018 at 07:00 UTC fd5dec442c98baf5_060074001<\/b> locationID = fd5dec442c98baf5 deviceID = 060074001 Butte County, CA timezone = America/Los_Angeles longitude = -121.66881, latitude = 39.32756 <hr>","Chico - East<\/b> 995 µg/m3<\/b> on November 10, 2018 at 01:00 UTC 2fb8ea63bee2cee6_060070008<\/b> locationID = 2fb8ea63bee2cee6 deviceID = 060070008 Butte County, CA timezone = America/Los_Angeles longitude = -121.84047, latitude = 39.76168 <hr>"],null,null,{"interactive":false,"permanent":false,"direction":"auto","opacity":1,"offset":[0,0],"textsize":"10px","textOnly":false,"className":"","sticky":true},null]},{"method":"addLegend","args":[{"colors":["#7E0023","#8F3F97","#FF0000","#FF7E00","#FFFF00","#00E400"],"labels":["Hazardous","Very Unhealthy","Unhealthy","USG","Moderate","Good"],"na_color":null,"na_label":"NA","opacity":1,"position":"bottomright","type":"unknown","title":"Max PM2.5 AQI Level","extra":null,"layerId":null,"className":"info legend","group":null}]}],"limits":{"lat":[32.5794870412859,41.7266704520413],"lng":[-123.35918595347,-115.483158877903]}},"evals":[],"jsHooks":[]}</script>

???

Clicking on a location pops up spatial and instrument metadata including the
unique `deviceDeploymentID`.

---

```r
Sacramento <-
 Camp_Fire %>%
 monitor_select("8ca91d2521b701d4_060670010")

Sacramento %>%
  monitor_timeseriesPlot(shadedNight = TRUE, addAQI = TRUE)
```

???

This timeseries plot is tailor made for the target audience with day/night
shading and Air Quality Index colors. It is designed to be "publication ready".

---

```r
Sacramento_area_daily_average <-
 Camp_Fire %>%
 monitor_filterByDistance(
 longitude = Sacramento$meta$longitude,
 latitude = Sacramento$meta$latitude,
 radius = 50000
 ) %>%
 monitor_collapse(
 deviceID = "Sacramento_area"
 ) %>%
 monitor_dailyStatistic(FUN = mean) %>%
 monitor_getData()

head(Sacramento_area_daily_average)
```

```
## # A tibble: 6 × 2
## datetime `0ad50de3895a9886_Sacramento_area`
## <dttm> <dbl>
## 1 2018-11-08 00:00:00 16.2
## 2 2018-11-09 00:00:00 22.9
## 3 2018-11-10 00:00:00 118. 
## 4 2018-11-11 00:00:00 109. 
## 5 2018-11-12 00:00:00 77.6
## 6 2018-11-13 00:00:00 69.3
```

???

A straightfoward recipe which results in two-column tibble with one column of
day-start times in the local timezone and another column of daily average
values. Perfect for loading into a spreadsheet.

---

## AirMonitorPlots

Publication ready plots

* **ggplot2** based
* time series plot
* daily barplots
* daily/hourly barplot
* diurnal cycle plot
* build-your-own components

---

```r
library(AirMonitorPlots)

Carmel_Valley %>%
  monitor_trimDate() %>%
  monitor_ggDailyByHour_archival(title = "Carmel Valley")
```

???

This diurnal plot shows when it would be better to stay inside and when the 
air quality improves enough to go outside -- in the evenings. This is an 
example of a plot that provides useful "actionable information" to the general
public.

---

# Take Home Message

---

## Know your audience

* Get feedback.
* Meet them where they are.
* Design small modular components.
* Use explicit naming.
* Sweat the details.
* Be flexible.
* Be consistent!!!

&nbsp;