A dataset that contains daily observations of individual air pollutants from 2014 to 2020.
airLDNA data frame with 2552 rows and 8 variables:
the observation date
particle matter with an aerodynamic diameter smaller than 2.5 \(\mu\)m
particle matter with an aerodynamic diameter smaller than 10 \(\mu\)m
ozone or trioxygen
nitrogen dioxide
sulphur dioxide
carbon monoxide
composite air quality index