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 …

Rising temperature can bring down pollution levels: Air quality expert

Nagpur: Comparing the city's temperature over the last few days with the Air Quality Index (AQI) has shown that rising temperature has reduced the pollution levels. Experts from the Central Pollution Control Board (CPCB) say this is possible as temperature is one of the five meteorological factors that fluctuate the …

Rain, rise in wind speed clean up air, city least polluted in NCR for 2 days

GURUGRAM: The city became the least polluted one in NCR on Wednesday and Tuesday, with the air quality index (AQI) coming down to 228 on Wednesday and 192 on Tuesday. Other cities of NCR — Delhi, Noida and Ghaziabad — on the other hand, recorded higher AQI at 270, 264 …

Relief from pollution as rain lashes Capital, NCR

After rain lashed the city at 21.7 degrees Celsius, Delhiites finally felt the winter chill for the first time on Tuesday. It was the first coldest day in December with the maximum temperature going down, said officials of the India Meteorological Department (IMD). The rain that continued through Monday night …

Showers tonight may wash away poison in air

Delhi's air quality once again reached close to 'severe' levels on Sunday, with an overall Air Quality Index (AQI) at 377 because of a fall in temperatures— recorded at a minimum of 7.4 degrees Celsius—and a drop in wind speed. However, Met officials have forecast showers on Monday night and …

After brief respite, Delhi air quality very poor again

After a brief respite, the air quality index (AQI) in Delhi-NCR again entered the'very poor' category at 377 units, with the most polluted sites being industrial towns of Ghaziabad and areas near the Delhi Technological University (DTU) in Rohini. The air quality may further deteriorate with a drop in temperature …

Delhi air quality ‘moderate’ — best in December in two years

The Air Quality Index on Thursday read 194 at 4 pm, putting the air in the ‘moderate’ range. It was 282 on Wednesday, which falls in the ‘poor’ category. With Strong winds pushing the capital’s air quality from ‘poor’ on Wednesday to ‘moderate’ on Thursday, Delhi saw its first December …

Smoggy Sunday: air quality drops to ‘very poor’

Day 2 of the third India-Sri Lanka Test was halted for over 20 minutes due to smog as Air Quality Index in Delhi crossed 350 With the Air Quality Index reaching 351 — rated as ‘very poor’ — on Sunday, the pollution levels in the city are going back to …

After brief respite, Delhi again turns breathless

A thick blanket of haze enveloped the National Capital on Sunday and the Air Quality Index (AQI) recorded "very poor" levels. The India Meteorological Department (IMD) said pollution levels have spiked due to calm conditions, marked by low wind speed and moisture. As per IMD standards, "very poor" levels mean …

How falling temperatures hit Delhi’s air quality -- and pride

NEW DELHI: With the minimum temperature falling to 7.4 degrees Celsius in the past 24 hours — two degrees below normal for the season — Delhi's air quality deteriorated slightly on Sunday. As the overall air quality index (AQI) rose to 351 compared to 331 on Saturday, several cricketers were …

Pollution monitoring falters in city

KOLKATA: The West Bengal Pollution Control Board has stopped automatic monitoring of air quality index (AQI) in Kolkata at a time when pollution levels in the city have started approaching Delhi's levels. The city, consequently, has gone unrepresented on the Central Pollution Control Board's (CPCB) national AQI table since the …

Green ministry vows ‘harsh measures’ to prevent smog in Delhi

Asserts that no single authority can be held responsible for rising air pollution The country’s top environment ministry bureaucrat said that “harsh measures” could be on the anvil to prevent a repeat of the smog that engulfed Delhi earlier this month. “As the government, we are determined to not let …

Pollution on the rise, Delhi govt. issues health advisory

With the air quality in Delhi remaining “very poor” on Monday, the Delhi Heath Department of issued a health advisory and appealed to citizens to join hand and work towards improving the air quality The AQI score on Monday was 367, an increase from 352 on Sunday and 322 on …

Delhi air quality may drop further in next 3 days

NEW DELHI: Although the capital's air quality stayed in the 'very poor' category on Sunday, it's likely to become close to 'severe' by the next three days. The overall air quality index (AQI), released by Central Pollution Control Board, rose from 322 on Saturday to 352 as falling temperatures trapped …

Delhi air pollution on rise as wind speed falls

The Air Quality Index (AQI), calculated by the Central Pollution Control Board (CPCB), was 352 on a scale of 500 Pollution levels in Delhi rose on Sunday leading to a dip in air quality with monitoring agencies forecasting a further spike over the next few days. The Air Quality Index …

City’s air quality goes poor again

Nagpur: City's air quality has worsened once again with particulate matter PM2.5 being almost five times more than the permissible limit. Experts attributed the sudden deterioration to different sources. As per the Central Pollution Control Board's (CPCB) data, there has been a sudden spike in PM2.5 which are particles less …

Key to Beijing’s fight against smog: Accurate forecast a fortnight ahead

In Beijing’s battle against pollution lies lessons for New Delhi, amid the debate in the capital over the effectiveness of the government’s odd-even scheme to curtail deteriorating air quality. On November 2, a text message to all mobile numbers issued in Beijing warned of worsening air quality and that an …

Delhi's 'very poor' air quality likely to worsen

Delhi's air quality once again fell to the 'very poor' category for the third day with authorities getting all set for the coming days. The Air Quality Index (AQI), as maintained by the Central Pollution Control Board (CPCB), was 326 on a scale of 500. Experts warned the situation may …

Air quality slips to ‘red' zone again

After a brief respite with relatively clean air over the last two days, city's air quality slipped to "very poor" zone on Monday. Despite favourable weather conditions such as wind speed, temperatures and Relative Humidity (RH), noxious pollutants were recorded high in various monitoring agencies. The Central Pollution Control Board's …

Delhi’s air quality improves, but stubble burning in Punjab up

According to the Central Pollution Control Board, average Air Quality Index (AQI) in Delhi-NCR at 5 p.m. on Sunday was 292 compared with 298 on Saturday, both considered "poor". Even as the air quality in the National Capital Region, including Delhi, recorded an improvement, increased stubble burning in the western …

Pollution: Air purifier sales up 20%

PATNA: The rising pollution level in the city has led to increase in the sales of air purifiers. People in the trade revealed that an air purifier, which was unheard of till a few years ago, is much in demand these days. The air quality index (AQI) in the state …

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