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 …

Feeling breathless in 'gas chamber' Delhi

As the Centre and state governments in NCR dither on fixing air quality, the capital's image is taking a beating and its residents are paying the price of bad air with their health. After TOI published a piece by Gardiner Harris, South Asia correspondent of The New York Times, on …

Toxic ozone gas at double the safe limit in some Delhi areas

Environmental scientists say ozone, which is a particularly critical pollutant, has emerged as a concern in Delhi in the last few years. The prevailing high temperatures have contributed to a spike in ozone levels to over double the permissible limits in some parts of the city in the last 10 …

Heat & dust raise Delhi’s air toxins to critical levels

Day temperatures dropped marginally on Thursday but there was hardly any relief for weather-beaten Delhiites as toxins in the air rose alarmingly due to a cloud cover trapping pollutants. The capital's air quality index (AQI) breached the 'severe' level, going from 219 (poor) on Wednesday to 410 in one of …

With heat, toxic ozone level is also rising in city

As temperatures soar in the national capital, levels of toxic ozone, responsible for causing a number of health problems, especially for asthmatics, have crossed permissible limits, the met department said on Thursday. With torrid heat wave continuing in the capital, Delhi recorded maximum temperature at 41.1º Celsius, a notch above …

WHO singles out air pollution as major health hazard

This is the first time that air pollution and its associated health risks have been discussed at the highest forum of WHO. Putting air pollution on global priority, the World Health Organisation has adopted a resolution on health impacts of air pollution, and urged its member countries to implement its …

CSE flags green concerns on Modi govt anniversary; Pitches for concrete plan to reduce air pollution

The Centre for Science and Environment (CSE), a Delhi-based think-tank on green issues, on Tuesday said the NDA government's record was not as bad as feared but there had been no major reforms so far to improve the green clearance processes for safeguarding the environment. It also noted that the …

The challenge of air pollution

Here is a piece of startling information, in the form of a BBC report dated April 19, for candidates aspiring to be researchers in air pollution. “Saharan dust, traffic fumes, and smog from Europe may be clogging up London’s air at present, and causing alarm in the newspapers. But in …

Air quality monitoring stations to come up in more cities:Govt

The Government plans to set up air quality monitoring stations, which are presently functional at 10 places, in more cities in the country. The air quality monitoring stations is also proposed to be expanded to cover the state capital as well as those cities having a population of more than …

Centre rolls out air index in 11 cities

Delhi, Navi Mumbai, B'luru, Ahd Among Those To Get Real-Time Bulletins Exactly a month after launching the national Air Quality Index (AQI), which had its share of teething problems, Union environment minister Prakash Javadekar on Wednesday announced the release of a daily air quality bulletin for 11 cities, including Delhi, …

Question raised in Rajya Sabha on National Air Quality Index, 07/05/2015

Question raised in Rajya Sabha on National Air Quality Index, 07/05/2015.

No regular data update for Delhi air quality index

Union environment minister Prakash Javadekar's recent remark as to why people aren't referring to the national Air Quality Index (AQI) and instead depending on "one embassy's" data had taken pollution experts by surprise. The fact is that the environment ministry's pet project, AQI, is itself facing some serious quality issues. …

40% of Delhi schoolkids fail lung capacity test: Study

NEW DELHI: More than a third of schoolchildren in four big cities of India suffer from reduced lung capacity, with Delhi showing the worst results, claims a new study whose results could be pointing to how air pollution is impacting the health of kids in urban India. In the survey, …

Pollution affecting lungs of 35 per cent kids: survey

KOLKATA: Around 35 per cent of school children in Indian cities are suffering from poor lung health, according to a survey. Released today by 'Breathe Blue' and Heal Foundation, the survey, carried out in four cities, revealed that the kids in Delhi were the worst-affected with 40 per cent of …

Every 4th schoolkid in Mumbai fails lung test, finds survey

MUMBAI: One in four Mumbai schoolchildren possibly has poor lung function, according to a multi-city survey released on the eve of World Asthma Day on Monday. The outlook is grimmer if one considers the national average: 35% of the surveyed children had poor lung function. The survey, covering 2,000 children …

Pune dist admn told to measure air quality before seeking clearance for stone quarrying

The district administration’s request for more stone quarries has led the State Expert Appraisal Committee (SEAC) to direct them to measure the air quality at sites before seeking for a green signal. With stone crushers likely to cause more air pollution, the SEAC has particularly asked the administration to carry …

Little data, air index of no use

The recently launched national air quality index, which is supposed to function like US Environment Protection Agency's Air Now system, seems to have to failed to meet expectations. In the US, air quality is monitored in all cities and disseminated in real time along with a health advisory. However, in …

Invisible' pollutants make air more harmful than ever

Technological advancements in the automotive industry and the switchover from two-stroke engines to four-stroke ones may have been touted as vehicles 'going green', but new challenges have now emerged in the battle against ever-increasing air pollution. It has been found that fuel-efficient vehicles, which may be performing better on dated …

Not just winters, Delhi's air toxic in summer too

High air pollution levels in Delhi have been generally associated with winters, when atmospheric inversion traps pollutants close to the ground and causes smog. It's time to revise that view. Of late, the air quality continues to be poor even when temperatures are high, indicating that bad air in the …

Delhi air quality continues to stay at ‘very alarming’ levels

Amidst the growing debate about the grim situation of air pollution in the national capital, and the Central government again expressing its serious intent to tackle the deterioration of air quality, Delhi’s air quality continued to remain very alarming even on Monday. The Environmental Monitoring and Research Centre, which is …

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