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 …

Delhi air may worsen on New Year’s Eve

The air quality continued to be in the "very poor" category on Wednesday with an AQI of 385 compared to 329 on Tuesday. According to meteorologists, the air may worsen towards New Year's Eve, accompanied by foggy mornings. A senior scientist at Regional Weather Forecasting Centre (RWFC) said all northern …

Delhi: Highly toxic pollutant at 9x level

According to scientists, benzene concentrations are higher in colder areas and if the temperature drops in the coming days — which is expected — the levels are bound to rise. Delhi, where air is already highly toxic, is witnessing a jump in benzene levels in the air and as it …

Taking on bad air, one month at a time

Centre's Plan Not To Focus On Just Emergency Measures The Centre is drawing up a `month to month' plan to deal with air pollution in Delhi and the national capital region rather than concentrating just on emergency measures as data show that the capital did not enjoy a single “good“ …

Bad air chokes Gurgaon as mercury dips

GURGAON: As fog enveloped Gurgaon and the average minimum temperature plunged to 8 degrees Celsius, the level of particulate matter (PM) 2.5 shot up again, choking the city on the Christmas day. Though the Met office has forecast a comparatively brighter Monday, the remaining days of the year are likely …

Delhi’s air pollution increases four-fold

While the thick blanket of fog engulfed Delhi on Sunday, air quality remained “severe” with four-fold increase of pollutant values. The National Air Quality Index (NAQI) has forecast poor air quality for next three days. The meteorological parameters of the MeT has predicted, “Moderate, shallow and dense fog till December …

Delhi pollution level high despite strong wind

According to scientists, the PM 2.5 concentration in Delhi on Sunday was 273 micrograms per cubic metre. As temperatures dipped on Sunday, air pollution levels refused to reduce even as wind speed remained high throughout Monday. High wind speed aids the dispersion of pollutants but low temperatures increase their concentration. …

Haze cloaks Mumbai as pollution levels spike with dip in temps

MUMBAI: While citizens woke to Christmas cheer on Sunday, the haze was a dampener as pollution levels touched the "very poor" mark. The System of Air Quality Weather Forecasting and Research (SAFAR) recorded an air quality index (AQI) of 311 in the city on Sunday. An AQI between 301 and …

North China breathes fresh air after longest days of smog

After choking in haze for nearly a week, people in north China can now take a deep breath, at least until the smog returns. The heavy smog that blanketed north China in the past week moved southward from Thursday morning thanks to a cold front, according to the National Meteorological …

City breathes easy as air quality improves

The city breathed easy on Thursday as the air quality marginally improved over Wednesday, when the air quality index (AQI) was recorded at 320. On Thursday, System of Air Quality Weather Forecasting and Research (SAFAR) recorded an AQI of 272. It has forecast the AQI to improve to 266 on …

From smog to fog: Delhi gets set for a toxic winter

The smog is extremely hazardous for those having a history of respiratory illness and heart patients are specially advised to take special care The uncomfortable level of air pollution around Delhi is making living in the Capital a health hazard. Smog, which, in simple terms, is a kind of air …

Air quality ‘severe’ as dense fog engulfs Delhi

Around 70 north-bound trains, including Rajdhani services, were delayed, while around 30 others were rescheduled due to fog. New Delhi: For the second consecutive day, road, rail, and air traffic was disrupted in the national capital due to dense fog. Flight operations at the Indira Gandhi International (IGI) Airport were …

Graded response action plan according to pollution levels in Delhi and NCR to inform public action and to take effective steps to combat public health …

The Hon’ble Supreme Court in its order of November 10, 2016 directed framing and submission of graded response action plan for various categories of National Air Quality Index (AQI). It also directed Central Pollution Control Board (CPCB) to convene a meeting on November 19, 2016 to get the views and …

Reinventing air quality monitoring: Potential of low cost alternative monitoring methods

Reliable and adequate access to real time air quality data is important to enable action to curb air pollution and build the case for improving air quality of India cities.The advent of affordable and easy to deploy air quality monitors presents an opportunity to address this important data gap.The report …

Study: Patna’s air quality worst in country, again

Patna: The air quality index (AQI) in the state capital on Tuesday stood at 476, the highest in the country and probably the highest-ever in the city. The AQI in Patna was the highest in the country even on Monday and the second highest on Sunday. Central Pollution Control Board …

Smog returns, pollution in city threatens health

LUCKNOW: Pollution level soared again in Lucknow with change in weather condition. For the second time in the month, the city was engulfed in dense smog on Tuesday. City was in very poor air quality/ severely polluted category throughout November, which means exposure to such air can lead to respiratory …

Question raised in Rajya Sabha on Air pollution in the National Capital, 28/11/2016

Question raised in Rajya Sabha on Air pollution in the National Capital, 28/11/2016. The air pollution in National Capital Region (NCR) reached severe category as per Air Quality Index (AQI) recently during Diwali and first week of November, 2016. The rise in air pollution, predominantly with respect to PM2.5, can …

Delhi records best November-end air in 3 years, but that may change soon

The capital is recording its best November-end air quality in three years. Meteorologists say strong winds and higher than normal temperatures have managed to lower smog to an extent but conditions may turn hostile soon. The air quality index (AQI) has been oscillating between "poor" and "moderate" categories in Delhi, …

Gurgaon’s air quality worsens three times overnight

Weeks after the air pollution levels in Gurgaon rose to 'severe' category post Diwali, the PM 2.5 in the city again shot up to the maximum level of 248u/mg on Thursday evening, according the Central Pollution Control Board (CPCB). The PM2.5 levels in the city is now four times higher …

The Indian cities with the poorest air quality

Delhi, Faridabad and Varanasi have the poorest air quality among the 32 Indian cities which are connected to the web-based system National Air Quality Index Portal. Howrah, Nashik and Durgapur had the cleanest air. Average AQI for the period Nov 2015 to October 2016 was released for these cities by …

‘Burning dry grass increases smog, leading to cold, cough’

NAVI MUMBAI: Environmentalists have criticized the practice of burning dry grass by the roadsides and near railway tracks during the winter, as since it causes smog, leading to respiratory ailments. "It is a highly unscientific practice to get rid of dry grass. Currently, Delhi is reeling due to very poor …

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