Page 5 - Air Quality
Delhi's air quality in May poorest for the month in three years: CPCB data
Delhi's air quality in May this year was the poorest for the month in the last three years, according to the Central Pollution Control Board data. Experts attributed the poor air quality to the lack of rainfall in the first half of the month. The city received just 1.4 mm of rainfall from May 1 to May 20, according to the India Meteorological Department. Delhi recorded an average air quality index (AQI) of 212 this year as against 144 in 2021 and 143 in 2020. It saw 21 days of "poor" air quality in 2022 as compared to three in 2021 and just two in 2020. The capital had only one day of "satisfactory" air quality this time as against six in 2021 and four in 2020. "Moderate" air quality days also dipped to nine as compared to 22 such days last year. An AQI between 201 and 300 is considered 'poor', 301-400 'very poor' and 401-500 'severe', while the AQI above 500 falls in the 'severe plus' category.
 "Delhi's air quality in May poorest for the month in three years: CPCB data")
India-first Google Search air quality feature now available in US
Google has expanded its feature to give detailed information about air quality to help people avoid pollution in the US.
 "India-first Google Search air quality feature now available in US")
Air pollution led to 100,000 premature deaths in India, finds study
The increase in the number of people dying prematurely from exposure to air pollution was highest in cities in South Asia.
 "Air pollution led to 100,000 premature deaths in India, finds study")
99% world's population breathes poor-quality air: World Health Organisation
Particulate matter, especially PM2.5, is capable of penetrating deep into the lungs and entering the bloodstream, causing cardiovascular, cerebrovascular (stroke) and respiratory impacts
 "99% world's population breathes poor-quality air: World Health Organisation")
Air quality standards: Delhi still most-polluted capital in world in 2021
In 2021, none of the cities in India met the prescribed World Health Organization air quality standards of 5 micrograms per cubic meter (µg/m3), stated the World Air Quality Report 2021
 "Air quality standards: Delhi still most-polluted capital in world in 2021")
Bihar, Delhi-NCR top pollution charts, air quality major crisis: CSE
The particulate pollution spiked and stayed elevated with varying intensity across all regions during the winter of 2021-22
 "Bihar, Delhi-NCR top pollution charts, air quality major crisis: CSE")
Delhi's air quality 'moderate', likely to degrade slightly on Monday
On February 22, the air quality is expected to improve to 'lower end of Moderate' due to relatively high temperature and wind speed
 "Delhi's air quality 'moderate', likely to degrade slightly on Monday")
Delhi's air quality continues to remain in 'poor' category, AQI at 280
The level of PM 2.5 and PM 10 was recorded at 114 in the 'poor' category and 206 in the 'moderate' category respectively.
Delhi receives light rain, AQI continues to remain in 'very poor' category
The India Meteorological Department (IMD) said has predicted a generally cloudy sky with light rain or drizzle in Delhi today.
No relief for Delhi as air quality remains 'very poor' despite light rain
The concentrations of PM 2.5 and PM 10 were recorded at 136 in the 'very poor' and 221 in the 'moderate' category respectively
Heavy rains lash national capital; thunderstorms, strong winds likely
Despite rainfall, Delhi's air quality was recorded in the ''very poor'' category as the Air Quality Index (AQI) stood at 324 at 8.05 am
 "Heavy rains lash national capital; thunderstorms, strong winds likely")
Delhi's air quality remains in very poor category despite light rain
The concentrations of PM 2.5 and PM 10 were recorded at 143 in the 'very poor' and 228 in the 'moderate' category respectively.
Delhi's air quality continues to remain in 'very poor' quality, AQI at 343
The concentrations of PM 2.5 and PM 10 were recorded at 176 in the 'very poor' and 280 in the 'moderate' category respectively
 "Delhi's air quality continues to remain in 'very poor' quality, AQI at 343")
Delhi records minimum temp at 6.5 degrees Celsius; air quality 'poor'
The India Meteorological Department (IMD) predicted foggy days through the week
 "Delhi records minimum temp at 6.5 degrees Celsius; air quality 'poor'")
India's toxic air gets worse, pollution in 132 cities below standards
India is failing in efforts to improve its toxic air quality, with the number of smog-plagued cities increasing since the launch of a national program to tackle the issue
 "India's toxic air gets worse, pollution in 132 cities below standards")
Pollution levels could rise again after 2020 lockdown-induced dip: Study
With the levels of pollution rising this year, the downward dip, induced by the hard lockdown phases of the pandemic in 2020, will not persist, a new analysis of regional pollution trends showed
 "Pollution levels could rise again after 2020 lockdown-induced dip: Study")
Delhi witnesses best air quality after months as heavy rain lashes city
Delhi's air quality improved from 'poor' category to 'moderate' with Air Quality Index (AQI) standing at 132 as the capital city and its adjoining areas witnessed heavy rainfall and thunderstorm
 "Delhi witnesses best air quality after months as heavy rain lashes city")
Kolkata air quality dips as people burst crackers to ring in New Year
The city's air quality turned 'poor' on Saturday morning, hours after revellers burst firecrackers to ring in 2022, an official of West Bengal Pollution Control Board (WBPCB) said
 "Kolkata air quality dips as people burst crackers to ring in New Year")
Delhi's air quality improves to 'poor'; max temp 21.2 degrees Celsius
The 24-hour air quality index (AQI) of Delhi read 267 at 4 pm on Wednesday
 "Delhi's air quality improves to 'poor'; max temp 21.2 degrees Celsius")
Delhi's air quality 'very poor'; max temp settles at 18 degrees Celsius
The 24-hour air quality index (AQI) of Delhi read 305 at 4 pm
