Where Does Delhi’s Air Pollution Come From?

Delhi is one of the most polluted cities in the world. PM2.5 pollution levels often reach more than 10 times the World Health Organization’s annual limit. So what are the main sources of Delhi’s air pollution? Smart Air dove into the data to get to the root of where Delhi’s … Read more

Did Delhi's Air Quality Improve In 2020?

Did Delhi’s Air Quality Improve in 2020?

How was Delhi’s air quality in 2020? Did Delhi’s air quality improve in 2020 compared to recent years? For the previous three years, Delhi has seen little improvement in air quality. Air pollution levels have hovered around 10x the World Health Organization’s (WHO) recommended limit for PM2.5 levels. Smart Air … Read more

2020 India Air Pollution Report: Did Air Quality Improve?

Did India’s air quality improve in 2020? How did COVID-19 affect air quality in India? Smart Air analyzed 2020 India air pollution data for five of India’s major cities: Delhi, Mumbai, Kolkata, Chennai, and Hyderabad. WATCH: Fixing India’s Air Pollution Problem 2020 India Air Quality Report Of the five major … Read more

Manama Bahrain Air Pollution One of Worst in World

25 Most Polluted Cities in the World (2020 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 2020 air pollution data for 540 major cities from 182 countries around the world to produce the 2020 ranking of the “25 … Read more

Delhi People Outdoor Excercise

What Time of Day Is Air Pollution Lowest in India?

When Smart Air polled people about what time of day air pollution is lowest, the most popular answer was the early morning, before the morning rush hour. But how accurate are our intuitions? To get to the bottom of it, Smart Air analyzed thousands of hours of PM2.5 data from … Read more

India winter high unsafe PM2.5 pollution levels compared with summer

Here’s Why Winter Air Quality in India Is so Bad

Winter air quality in India is hazardous, with 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 during India’s winters. But just why is this? Analyzing India’s Summer & Winter Pollution Levels Data analyzed by Smart … Read more

Mumbai During Lockdown

COVID-19 Lockdown Slashes PM2.5 in India’s 6 Biggest Cities

Recent news reported that the coronavirus lockdown is causing dramatic reduction in air pollution across India due to coronavirus lockdown. This is good news for lungs across the subcontinent, since Indian cities often make news as some of the most polluted in the world. Some cities average PM2.5 ten times … Read more

Did India’s Air Improve in 2019

A Smart Air analysis of new air quality data found that pollution improved in 2019 in all major cities in india. Small PM2.5 particles in the air decreased from 2018 to 2019 by as much as 15.5%. Delhi Air Quality Even though all cities saw pollution decrease, Delhi saw just … Read more

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