Exercising in Delhi air pollution

At What Point Is Exercise in Delhi Pollution Harmful?

Air pollution is one of the biggest killers in Delhi. So, it would make sense to wonder whether exercising on a polluted day in Delhi does more harm than good. Below is a picture of people exercising in Delhi with PM2.5 air pollution levels at 150 micrograms or an AQI … Read more

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

Air Pollution: Silent Killer

120,000 Deaths in India Due to Air Pollution in 2020

Air pollution kills hundreds of people in India every day. Due pollution being a “silent” killer, most do not even grasp how much pollution affects our health. As per WHO research over 92% of people in the world is breathing unsafe air with high air pollution levels. Statistics regarding deaths … 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

BBC Office Purifier Setup

The Data-Backed Most Cost-Effective Office Air Purifier

Can a simple fan and filter really make air purifiers that can clean large offices? Seven years ago, Smart Air started when PhD student Thomas strapped together a DIY air purifier to survive a polluted Beijing winter.   Founder Thomas Talhelm‘s first DIY air purifier Thomas published test data on … Read more

How Many Trees Need to Be Planted to Solve Delhi’s Air Pollution?

When Delhi’s air pollution spikes, netizens in the nation’s capital often bring up the solution of planting trees. For instance, this user on the question-answer site Quora asks “how many trees does Delhi need to combat its air pollution problem?” However, environmental research suggests that planting trees are an incredibly … Read more

Bike Pollution Mask India

Did Delhi’s Air Pollution Drop 25% in 2019? What the Data Says

The Delhi government and Delhi Chief minister Arvind Kejriwal announced Delhi’s PM2.5 air pollution was down 25% in 2016-2018 compared to 2012-2014.     Yet there is doubt. Thewire.in, for one, expressed skepticism about this claim.   As data-driven nerds, we wanted to let the numbers answer this question. So we dug … Read more

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.