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Until 2017, India was divided into five zones for the purpose of this survey and each city was scored on 19 indicators. The cities were classified into four colours: green, blue, black, and red, green being the cleanest city, and red the most polluted. None of the cities was rated as green—the best category in the exercise.
Below is a list of 526 cities sorted by their annual mean concentration of PM2.5 (μg/m 3) in 2022. [1] [2] By default the least polluted cities which have fewest particulates in the air come first. Click on the arrows next to the table's headers to have the most polluted cities ranked first. Please note that constraints exist in this type of ...
The key findings of India's central pollution control board are: [52] Most Indian cities continue to violate India's and world air quality PM10 targets. Respirable particulate matter pollution remains a key challenge for India. Despite the general non-attainment, some cities showed far more improvement than others.
The article lists cities in Kerala according to the WHO's database on ambient (outdoor) air pollution monitoring from almost 1600 cities in 91 countries. [ 1 ] [ 2 ] It includes 124 Indian cities, eight of which are from Kerala.
This list contains the top 500 cities by PM2.5 annual mean concentration measurement as documented by the World Health Organization covering the period from 2010 to 2022. The January 2024 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 5,390 towns and cities in 63 countries.
It is a major source of pollution. Indian cities alone generate more than 100 million tons of solid waste a year. Street corners are piled with trash. Public places and sidewalks are despoiled with filth and litter, rivers and canals act as garbage dumps. In part, India's garbage crisis is from rising congestion. India's waste problem also ...
Air pollution in India; 0–9. 2024 India–Pakistan smog; A. Air (Prevention and Control of Pollution) Act, 1981; ... List of cities in Kerala by ambient air quality
The air pollution in Delhi also affects the surrounding districts. [3] [4] Air pollution in India is estimated to kill about 2 million people every year and is the fifth largest killer in India. India has the world's highest death rate from chronic respiratory diseases and asthma, according to the World Health Organization. In Delhi, poor air ...