Twenty-two of the world’s 30 most polluted cities are in India, with Delhi being ranked as the most polluted capital city globally, a new report said . The report is prepared by Swiss organisation, IQAir, in the form of the ‘World Air Quality Report, 2020’, which has released globally.

This report uses the latest research on mobility trends to chart the changes in urban mobility needed for a rapid but realistic return and lock-in of the record low air pollution levels of March and April 2020.

PM2.5 air pollution was behind approximately 160,000 deaths in the world’s five most populous cities in 2020, according to a Greenpeace Southeast Asia analysis of IQAir data from a live Cost Estimator.

Air pollution is a critical issue in Thailand and, while the government regularly announces new measures to combat it, enforcement remains a key issue. This paper presents a comprehensive desk review of existing regulations and plans, outlining gaps and barriers to implementation, as well as success stories.

Many cities and urban centers around the world experience high air pollution episodes attributable to increased anthropogenic alterations of natural environmental systems. World Health Organization estimates indicate strong exceedances of prescribed limits in developing countries.

In this report, defined (a) the size of NCAP city airsheds (b) the recommended number of ambient air quality monitoring sites in an airshed (c) the operational sampling frequency to support receptor-based source apportionment studies.

Better air quality has led to a significant reduction of premature deaths over the past decade in Europe. However, the European Environment Agency’s (EEA) latest official data show that almost all Europeans still suffer from air pollution, leading to about 400,000 premature deaths across the continent.