Keep track of the most polluted cities in the world with our air quality index (AQI) ranking.

2 天之前 · Discover real-time top 100 most polluted cities worldwide with AQI Ranking 2025. Stay informed on global air quality at a glance.

This list contains the top 500 cities by PM2.5 annual mean concentration measurement as documented by the World Health Organization covering the period from 2010 to 2022. The January 2024 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 5,390 towns and cities in 63 countries.

2024年2月27日 · Scroll down below for the full rundown of the world’s most polluted cities, which countries they’re in, and their annual average PM2.5 levels. Rankings: 25 Most Polluted Cities in the World in 2023 1. Dhaka, Bangladesh (114.5 µg/m3)

Find out the most polluted cities in the world in 2023. Check out which city in the world had the highest level of air pollution PM2.5. Download the IQAir AirVisual world air quality report.

Ghaziabad is the most polluted city in the world with an average air quality index of 110.2, putting it in the “unhealthy” air quality category for 2019. This is, however, an improvement from 2017 and 2018, where the average was 144.6 and 135.2 respectively.

2022年7月4日 · Now, which cities throughout the world are the most polluted? Here is a list of the world's most polluted cities, based on data from IQAir.

2024年1月4日 · Ranked: The 20 Most Air-Polluted Cities on Earth. According to the World Health Organization (WHO), almost the entire global population (99%) breathes air that exceeds WHO air quality limits. In the above map, we use 2022 average PM2.5 concentrations from IQAir’s World Air Quality Report to visualize the most air-polluted major cities in the ...

2024年11月15日 · Cities in Asia and the United States emit the most heat-trapping gas that feeds climate change, with Shanghai the most polluting, according to new data that combines observations and...

2023年6月4日 · As a result of its growing population and rapidly expanding industrial sector, India has 14 cities on the list, outpacing China, formerly considered the world’s number one air pollution source. The only African country on the list, Chad, experienced severe dust storms in 2022 that resulted in an 18% increase in PM2.5 concentration in 2022 ...