Heavy air pollution in Indian cities- IQAir report
Thirty-nine out of the 50 most polluted cities in the world are in India, a report published on Tuesday by Swiss air quality technology company IQAir claimed.
Darbhanga, Asopur, Patna, Ghaziabad, Dharuhera, Chapra, Muzaffarnagar, Greater Noida, Bahadurgarh and Faridabad are other citiea of India which were in the list.
Particulate matter smaller than 2.5 microns (or about a ten-thousandth of an inch) is particularly dangerous to human health. Such particles are small enough to travel deep into the respiratory system, potentially impairing lung function.
The National Ambient Air Quality Standards require PM 2.5 concentration to be less than 60 micrograms per cubic meter of air in any given 24-hour period to be considered safe. The World Health Organization recommends it to be 75 micrograms per cubic meter of air.
At the same time India also have 7 cities in India – Tarakeswar, Digboi, Aladu, Kattupalli, Polampalle, Kharsawana and Muttayapuram were also among the 15 least polluted regional cities in South Asia.
Indndia ranked 8th in the list of the world’s most polluted countries in terms of air quality, the report said. In 2021, it was in the fifth position.
“India’s annual average PM2.5 level in 2022 was 53.3 µg/m3, only slightly lower than the 2021 average of 58.1,” IQAir said in its World Air Quality Report in 2022. “Roughly 60% of the cities in India included in this report experienced annual PM2.5 levels of at least seven times higher than the WHO guidelines.”
The Swiss company noted that while air quality monitoring has increased in India, it still lacks the ability to track the progress of reduction strategies through an effective and reliable emissions inventory.
It also underlined the need for a “comprehensive national emissions database” to determine sectoral emission reductions.
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