I am doing econometric modeling for air pollution and some other variables. But don't have the latest data (2000-2020) of air pollutants such as carbon monoxide, PM2.5, PM10, NOx, SO2 and ammonia. Would you recommend any website where I can get?
@ Atiq, EPA is dedicated to monitoring the quality of the air we breathe. OAQPS is responsible for setting the National Ambient Air Quality Standards (NAAQS), which control pollutants harmful to people and the environment. There are two types of standards, primary and secondary.
If it is related to Indian or SAARC context, then I feel the official website of CPCB (Central Pollution Control Board) or respective SPCB (State Pollution Control Board) keep a regular track over the air quality standards & monitoring. If we are looking over the entire world context, then it is WHO (World Health Organization), National Ambient Air Quality Standards (NAAQS) & Environmental Protection Agency (EPA).
Above agencies give a proper guideline on basis of which air quality standards are generally maintained & monitored. They will provide detailed data regarding all kinds of primary & secondary standards or pollutants.
Atiq -- the WHO data is here --
https://www.who.int/airpollution/data/cities/en/
All the years you want are not available.
On that page, look on the right side, and you will see an EXCEL file
called: Ambient (outdoor) Air Quality Database by Country and City
Hope that helps.
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