1、2|2022 World Air Quality Report About this report .3Executive summary .4Where does the data come from?.5Why PM2.5?.5Interpreting health risks with air quality guidelines and standards .6Data presentation .72022 Global PM2.5 map .8Highlighted Contributor:Kyiv City .9Highlighted Contributor:Aires Nuev

2、os .102022 Country/region ranking .112022 Regional capital city ranking .12Overview of public monitoring status .13Regional summaries .14East Asia .14China Mainland .15South Korea .16Southeast Asia .17Indonesia .18Malaysia .19Thailand .20Vietnam .21Central&South Asia .22India .23Pakistan .24West Asi

3、a .25Europe .26Ukraine .27Northern America .28United States .29Latin America&Caribbean .30Brazil .31Chile .32Colombia .33Africa .34Chad .35South Africa .36Oceania .37Next steps .38What can governments do?What can I do?.38Become an air quality data contributor .39Methodology .40Data sources .40Data v

4、alidation .40Data calibration .40Data calculation .40City level data .40Country/region data .40Data availability .41Disclaimer .41FAQ .42References .43Acknowledgments .47Contents3|2022 World Air Quality Report About this reportThe 2022 World Air Quality Report reviews the status of air quality aroun

5、d the world for the year 2022.This report presents PM2.5 air quality data from 7,323 cities across 131 countries,regions,and territories.The data used in this report was aggregated from over 30,000 regulatory air quality monitoring stations and low-cost air quality sensors.These monitoring stations

6、and sensors are operated by governmental bodies,research institutions,non-profit non-governmental organizations,universities and educational facilities,private companies,and citizen scientists across the globe.The PM2.5 data in this report is measured in units of micrograms per cubic meter(g/m3)and