Air Quality Index (AQI)

Judgment of the National Green Tribunal regarding plywood factories operating in Yamuna Nagar, Haryana, 27/05/2025

Judgment of the National Green Tribunal, May 27, 2025 in the matter of Sumit Saini Vs Shree Ram Steel Industries & Others. Sumit Saini, resident of village Damla, District Yamuna Nagar, Haryana had sent a letter petition dated May 14, 2022 to the NGT. The application said that around 25 …

Question raised in Lok Sabha on Pollution Index, 22/11/2016

Question raised in Lok Sabha on Pollution Index, 22/11/2016. The National Air Quality Index (AQI) is the web-based system designed to provide AQI on real time basis considering eight pollutants i.e. Sulphur Dioxide, Nitrogen Dioxide, Lead, Ozone, PM10, PM2.5, Carbon Monoxide and Ammonia for short term (upto 24 hourly) norms …

Cold air, pollution take a toll

The Air Quality Index (AQI) of certain areas in the city was as high as 367 micrograms of pollutant PM2.5 per cubic metre on Tuesday. Such high levels of fine particulate matter in the air have led to the air quality being categorized as 'very poor' by authorities. Experts say …

Mobile air quality monitoring system reaches city

The observational mobile station for air quality monitoring reached Guru Nanak Dev University (GNDU) here today where it was received by Director, Research, Prof Tarlok Singh Banipal. The mobile unit will assess the pollution levels in Punjab, Haryana and Chandigarh. The monitoring of seven cities had started from Chandigarh after …

Air quality a bit better, may improve this week

Delhi's air quality on Monday was the best the city has seen in 20 days although it was still in the 'very poor' category. The good news is that the city's air is likely to get slightly cleaner in the next few days, the Central Pollution Control Board said. The …

Air quality deteriorates, 202 point rise in pollution

Varanasi: The city's air quality deteriorated sharply on Wednesday with maintaining hazardous trend for the third consecutive day with a 202-point rise in pollution levels within 24 hours. As per the real-time Air Quality Index recorded at Orderly Bazar station of Central Pollution Control Board (CPCB) on Wednesday, the city's …

Winds of change, but air quality still severe

NEW DELHI: The air quality continued to remain "severe" despite improved wind speed on Tuesday. In fact CPCB recorded a higher air quality index (AQI) of 432 compared to 423 on Monday. Experts said levels are still high because they had peaked to "very severe" level and dispersion may take …

New Delhi targets older diesel vehicles to clear up choking smog

Authorities in New Delhi began revoking licences for thousands of older diesel vehicles on Tuesday and halted construction work on the underground rail network, as air pollution remained several times over the safety limit despite easing from Monday. The measures were the latest attempt to lift a thick haze of …

Delhi-like smog triggers pollution alarm in Patna

Patna: Patna witnessed Delhi-like smog on Tuesday, triggering a pollution alarm in the state capital, which had been ranked the sixth most polluted city in the world and third most in the country by World Health Organisation (WHO) in May this year. Most factors behind the haze in Delhi are …

Mumbai: Air quality this Diwali to be worse than last year, predicts SAFAR

According to System of Air Quality and Weather Forecasting and Research (SAFAR), particulate matter (PM) in the air in Mumbai is set to increase this Diwali, making the air more polluted as compared to last year. The air quality index (AQI) is expected to be as high as 334, falling …

This Diwali to be more polluted than last two years

The Air Quality Index (AQI) will be 443 on Diwali day, which is severe.The Air Quality Index (AQI) will be 443 on Diwali day, which is severe. Diwali this year in Delhi is expected to be significantly more polluted than in the previous two years, said an official survey on …

A week before Diwali, Delhi's air quality goes into red zone

Diwali is a week away but the capital's air quality has already plunged to "very poor" levels, breaching the hazardous "red zone" on Sunday for the first time this season - a level, if sustained for three straight days, prompts Beijing authorities to shut factories and curb outdoor activities. Delhi's …

Air gets fouler but odd-even not on calendar

The Delhi government apparently has not chalked out any plans as yet to implement the odd-even scheme as an emergency measure this winter. Though officials remained tightlipped and no one was available for comment, sources said nothing concrete had been discussed as yet. No alternative action plan to deal with …

Smoke from Bhalswa adds to Delhi’s pollution woes

Toxic smoke from agricultural fires in neighbouring States aggravates problem Delhiites are in for another rough winter when it comes to air pollution, said experts as the air quality in the Capital started dipping this past week. Toxic smoke from agricultural fires in neighbouring States added to the sources of …

In air quality, victory of evil over good

The ritual of marking the victory of good over evil — burning Ravana effigies — had quite the opposite effect on air quality in Delhi-NCR, with the national capital, Gurgaon and Faridabad among the five most polluted cities in the country on Dussehra, according to data on 25 cities released …

City air quality takes a beating, sees 24% dip in over five years

BENGALURU: The quality of air in the city has taken a severe beating over the past five years. From a satisfactory level in 2011, the quality has been downgraded to a moderate level in 2015. What this literally translates to is breathing discomfort to children and older adults as well …

'Data on exposure to air pollution inadequate'

AGRA: A recent study by experts from University of Massachusetts, IIT-Bombay and Desert Research Institute in the US points out that the amount of air pollution exposure data available in India is largely inadequate. And considering the growing urbanisation and other factors that are exposing more people to polluted air, …

State of ambient air quality of Uttar Pradesh cities

Being the most populous state in India, Uttar Pradesh has been facing air pollution challenges for several decades. The state has witnessed a progressive degradation in air quality over the last three decades due to fast-paced development, majorly in terms of the growing vehicular population, congestion, refuse burning and inefficient …

Xiaomi enters air purifier market in India

Smartphone maker Xiaomi has forayed in the nascent air-purifier segment in India. The company’s Mi Air Purifier 2 is the first smart home product from its Mi Ecosystem devices range that is being launched in the country. Priced is at ₹9,999, the air purifier will be available on Mi.com from …

Air quality index doesn't give you correct picture

Lack of calibration of pollution-measuring instruments has been hampering efforts of the country's pollution watchdog to come out with accurate data on air pollution. When Delhi experimented with car rationing (odd-even) schemes to tackle the problem of air pollution, people wondered why the different agencies showed different figures for emission …

Turbhe & Koparkhairane most polluted city nodes: Green report

NAVI MUMBAI: It is tough to breathe easy in Koparkhairane and Turbhe nodes which have violated the national permissible limits for pollutants such as sulphur dioxide, nitrogen oxide, as per the city's Environmental Status Report (ESR). Going by the figures over the past five years, all the four continuous ambient …

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