Pollution / FACTSHEET

Noida Pollution Level Today

As per Swiss organisation IQAir, Air pollution contributes to as many as 7 million premature deaths globally per year and costs more than $5 trillion in welfare losses. According to IQAir's world air quality report 2020, air quality in every Indian city improved compared to 2018 while 63 per cent saw direct improvements against 2019. However, India is still home to 22 of the 30 most polluted cities in the world. In 2019, India launched the 'National Clean Air Programme' proposing a “tentative national target” of 20 to 30 per cent reduction in PM 2.5 and PM 10 concentrations by 2024, with 2017 as the base year for comparison.

Jun 21, 2022 | 10:51 IST

1 - How bad is Noida’s Air Quality Index (AQI)

What is AQI? Air quality index, AQI, is a measure of the quality of air. The AQI value increases as the quality of air worsens. It is divided into six categories ranging from 0 to 500.

Why is it measured? Each category of AQI corresponds to a different level of health concern. An AQI value of 0-50 indicates satisfactory air quality. However, the air quality of over 300 is categorised as "Hazardous" with severe health implications.

Is it different from PM2.5? While AQI is a generalised version of the current air quality, PM2.5 refers to particulate matter smaller than 2.5 micrometres.

CREDITS
Researched, written, and edited by
Areeba Falak, Ritvvij Parrikh, Shuja Asrar
Data and visualization by
Arunmozhi Periasamy, Ritvvij Parrikh, Shuja Asrar