pm25_2011_durham
Air quality for Durham, NC
Description
Daily air quality is measured by the air quality index (AQI) reported by the Environmental Protection Agency.
Usage
pm25_2011_durham
Format
A data frame with 449 observations on the following 20 variables.
- date
Date
- aqs_site_id
a factor with levels
37-063-0015- poc
a numeric vector
- daily_mean_pm2_5_concentration
a numeric vector
- units
a factor with levels
ug/m3 LC- daily_aqi_value
a numeric vector
- daily_obs_count
a numeric vector
- percent_complete
a numeric vector
- aqs_parameter_code
a numeric vector
- aqs_parameter_desc
a factor with levels
Acceptable PM2.5 AQI & Speciation MassPM2.5 - Local Conditions- csa_code
a numeric vector
- csa_name
a factor with levels
Raleigh-Durham-Cary, NC- cbsa_code
a numeric vector
- cbsa_name
a factor with levels
Durham, NC- state_code
a numeric vector
- state
a factor with levels
North Carolina- county_code
a numeric vector
- county
a factor with levels
Durham- site_latitude
a numeric vector
- site_longitude
a numeric vector
Source
US Environmental Protection Agency, AirData, 2011. http://www3.epa.gov/airdata/ad_data_daily.html