Urban Air Quality

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 …

Kolkata inhales poison in every breath

It's a known fact that depleting green cover and rapid increase in vehicular traffic are taking a toll on the city's ambient air quality. But how serious is the damage? If results of the tests conducted by the US embassy are anything to go by, it's time that the authorities …

Breathing the same air? measuring air pollution in cities and regions

This paper presents a new set of estimates of exposure to air pollution (fine particulate matter - PM2.5) at the city, regional and national levels for the 34 OECD countries, and at the regional and national levels for Brazil, China, India, Russia and South Africa. The estimates are developed by …

Delhi needs an emergency pollution plan, says CSE

Delhi has lost the gains it made through environment-friendly reforms in the early 2000s, and air quality is now worse than before, new data shows. For the long-term, vehicular emission standards needed to be upgraded and the use of cars disincentivised, the Centre for Science and Environment (CSE) has recommended. …

Capital’s air quality worse than before

Early on November 13, Delhi Environment Pollution Authority chief Bhure Lal left from his residence in Lutyens’ Delhi for his daily walk at Lodhi Gardens, his personal air pollution monitor attached. The monitor read: 1,196 microgramme per cubic metres. He was breathing 20 times the recommended safe standard for particulate …

Question raised in Rajya Sabha on air pollution level in Delhi, 11/12/2014

Question raised in Rajya Sabha on air pollution level in Delhi, 11/12/2014.

Centre for Science and Environment releases stunning data on the daily dose of polluted air that people breathe in Delhi

As you do your morning walk in that so called ‘fresh air’, you are actually breathing in air which is thick and heavy with particulate pollution. And you are not safe from polluted air even within the confines of your homes or workplaces -- says a latest Centre for Science …

Order of the National Green Tribunal regarding growing air pollution in Delhi, 04/12/2014

Order of the National Green Tribunal in the matter of Vardhaman Kaushik Vs. Union of India & Ors. dated 04/12/2014 regarding growing air pollution of Delhi. A team of CPCB, DPCC, a Scientist from MoEF, a Scientist from State Boards of State of Rajasthan, State of Haryana and State of …

Contribution of vehicular emission on urban air quality: Results from public strike in Hyderabad

The aim of this study is to analyse the amount of atmospheric pollution caused by vehicular traffic and the public strike, during which vehicular traffic is highly curtailed, offers an excellent opportunity for our purpose. The present study is carried out through systematic in situ measurements of particulate matter (PM), …

Health benefits of improving air quality in Taiyuan, China

Since 2000, the government in Shanxi province has mounted several initiatives and mandated factory shutdowns with the goal of reducing coal burning emissions and the environmental impacts of industrialization. We estimated the health benefits associated with air quality improvement from 2001 to 2010 in Taiyuan, Shanxi Province, using disability-adjusted life …

Report of high powered committee on how to decongest Delhi

The primary solution to decongesting Delhi is prioritization and promotion of public transport and inducing people to shift towards it, from their private vehicles says the High Powered Inter-Ministerial Committee in this ‘Action Plan to Decongest Delhi’. The National Urban Transport Policy notified by MOUD states the objective that the …

Improving air quality monitoring in Asia: a good practice guidance

A majority of people living in Asian cities are exposed to unhealthy levels of air pollution every day. Seven out of 10 cities in developing Asian countries have unhealthy levels of air pollution, when measured as annual levels of particulate matter with size range of not greater than 10 microns …

National Green Tribunal Steps in to Address Delhi's Worsening Air Quality

Chairperson Justice Swatanter Kumar rolls out 14-point action plan to ensure that the capital of India is better managed Prime Minister Narendra Modi may not have had this in mind when he launched the Swachh Bharat Abhiyan or cleanliness drive, but the National Green Tribunal has stepped in to address …

Order of the National Green Tribunal regarding growing air pollution in Delhi, 28/11/2014

Order of the National Green Tribunal in the matter of Vardhaman Kaushik Vs. Union of India & Ors. dated 28/11/2014 regarding growing air pollution in Delhi. The Tribunal noted that despite orders of the highest court of the land there is hardly any improvement in the ambient air quality of …

Question raised in Rajya Sabha on measures taken to combat air pollution, 27/11/2014

Question raised in Rajya Sabha on measures taken to combat air pollution, 27/11/2014.

Question raised in Lok Sabha on reports on air pollution, 26/11/2014

Question raised in Lok Sabha on reports on air pollution, 26/11/2014.

Order of the National Green Tribunal regarding growing air pollution in Delhi, 26/11/2014

The National Green Tribunal (NGT) has passed the order that all the petrol and diesel vehicles older than 15 years would not be permitted to ply on the national capital's road. Order of the National Green Tribunal (Principal Bench, New Delhi) in the matter of Vardhaman Kaushik Vs. Union of …

Clean up our skies

Improve air quality and mitigate climate-change simultaneously, urge Julia Schmale and colleagues.

Achieving accurate simulations of urban impacts on ozone at high resolution

The effects of urbanization on ozone levels have been widely investigated over cities primarily located in temperate and/or humid regions. In this study, nested WRF-Chem simulations with a finest grid resolution of 1 km are conducted to investigate ozone concentrations [O3] due to urbanization within cities in arid/semi-arid environments. First, …

Respiratory illnesses in city rise with pollution

Rising air pollution in Chennai is making more people sick with respiratory illnesses, especially chronic obstructive pulmonary disease (COPD), say experts. According to data released by System of Air Quality and Weather Forecasting and Research, which conducts regular air quality checks in metros, Chennai ranks second in air pollution after …

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