Visualize: Delhi’s Air Pollution (2016-2021)

Delhi is one of the most polluted cities in the world. PM2.5 pollution levels reach more than 10 times the World Health Organization’s annual limit. Hazy skies and pollution alerts have become the norm in Delhi. In winters, the air quality reaches hazardous levels creating health emergencies.  To help people visualize how Delhi’s …

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Where Does India’s Air Pollution Come From?

In our 2022 25 most polluted cities report, 9 Indian cities made the list. So where does India’s air pollution come from? Let’s dive into to see what the sources are of India’s serious air pollution. Sources of India’s Air Pollution: By Industry A study undertaken by Council on Energy, …

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Manama Bahrain Air Pollution One of Worst in World

25 Most Polluted Cities in the World (2022 Rankings)

Air pollution is one of the leading causes of death around the world. But which cities and countries are the most polluted in the world? Smart Air analyzed 2021 and 2022 air pollution data for 529 major cities from 88 countries around the world to create the 2022 updated ranking …

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Did Hyderabad’s Air Quality Improve in 2021?

How was Hyderabad’s 2021 air quality? Did Hyderabad’s air quality improve in 2021 compared to recent years? Air pollution in 2020 averaged levels over 4 times the World Health Organization’s (WHO) recommended limit for PM2.5 levels. Smart Air dove into the data to see if there was any improvement in 2021. Hyderabad …

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Did Chennai Air Quality Get Better in 2021?

Chennai air quality worsened by 11.5% in 2021 compared to 2020. This leaves Chennai with air pollution levels 6 times higher than the World Health Organization’s annual limit. What are the trends in Chennai air quality and how does Chennai air pollution compare to other Indian cities? Chennai Air Quality: …

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Kolkata Air Quality Exceeds 14 Times WHO Limit in 2021

Analyzing air pollution data from the US Consulate, Smart Air found that Kolkata’s air quality levels did not improve in 2021 compared to last year. With an annual PM level of 71 micrograms, the citizens of Kolkata are still breathing air pollution that is 14 times the WHO annual limit. …

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Did Delhi Air Quality Get Better in 2021?

How was Delhi’s air quality in 2021? Did Delhi’s air quality improve in 2021 compared to recent years? Delhi air quality has seen little improvement recently. Air pollution levels have hovered around 20x the World Health Organization’s (WHO) recommended limit for PM2.5 levels. Smart Air dove into the data to …

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Did India Air Pollution Improve in 2021?

How did India air pollution fare in 2021? Did the COVID-19 second wave affect air quality in India? Smart Air analyzed 2021 India air pollution data for five of India’s major cities: Delhi, Mumbai, Kolkata, Chennai, and Hyderabad. 2021 India Air Pollution Report Of the five major Indian cities analyzed …

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20 Least Polluted Cities in India (2022 Rankings)

Looking to find one of the least polluted cities in India to get a break from the air pollution? Smart Air analyzed air pollution data for dozens of Indian cities to generate the 2022 ranking of the “20 Least Polluted Cities in India”. Scroll down below for the full rundown …

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Delhi smog tower

Delhi Unveils Smog-Fighting Purifier Tower, But Does It Work?

Delhi is one of the most polluted cities in the world. PM2.5 pollution levels reach more than 10 times the World Health Organization’s annual limit. To combat air pollution, the Delhi government recently installed a new smog tower in the center of the city. But will this Delhi smog tower have an effect …

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Smart Air is a social enterprise that creates simple, no-nonsense air purifiers and provides free education to protect people’s health from the effects of air pollution. We are proud to be the only certified B-Corp dedicated to fighting air pollution.