2018 world air quality report
India’s national capital region (NCR) emerged as the most polluted region in the world in 2018, according to this new report. Gurugram is the worst affected followed by Ghaziabad, Faridabad and Noida are amongst the top six most worst-affected cities.
Delhi has been ranked the most polluted capital in the world, while Gurugram is the most polluted city, according to a Greenpeace report. According to the latest data compiled in the IQ Air Visual 2018 World Air Quality Report and interactive world’s most polluted cities ranking, which is prepared in collaboration with Greenpeace Southeast Asia in order to reveal the state of particulate matter (PM2.5) pollution in 2018, Delhi had an average yearly PM2.5 concentration at 113.5 micrograms per cubic metre. The report is based on air quality data collected in 2018 from public monitoring sources, with a special focus on data which has been published in real-time or near real-time. 
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