Data for constructing Air Quality Index (AQI), extracted from the Technical Assistance Document for the Reporting of Daily Air Quality.
Format
The aqi data contains daily PM2.5 values in Travis county, Austin, Texas, USA in 2024, measured in three monitor sites. The data is a tibble with 272 rows and 9 variables:
- pollutant
name of pollutant (PM2.5)
- code
a five-digit code assigned to each pollutant
- date
date of measurement
- value
the measured value of PM2.5
- aqi
the calculated API value
- long
longitude of the monitor site
- lat
latitude of the monitor site
- site_code
site code
- site_name
site name
The aqi_ref_tbl and pollutant_ref_tbl data contain the breakpoints for the AQI and for each of the six pollutants (Ozone, PM2.5, PM10, CO, SO2, NO2). The aqi_ref_tbl data is a tibble with 5 rows and 3 variables:
- group
corresponding group category, from "Good" to "Very Unhealthy"
- low
the low breakpoint of a certain pollutant group
- high
the high breakpoint of a certain pollutant group
The pollutant_ref_tbl data is a tibble with 30 rows and 5 variables.