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 …

Order of the National Green Tribunal regarding ozone pollution across urban India, 21/03/2025

Order of the National Green Tribunal in the matter of News Item titled “CSE report finds dangerous increase in ozone pollution across urban India” appearing in Down to Earth dated 06.08.2024. The Principal Bench of the NGT heard the matter on March 21, 2025. In the original application, registered suo …

Indonesia’s air quality: decline in 2023 due to lack of intervention and El Niño. what about 2024?

New data published by the Centre for Research on Energy and Clean Air (CREA) reveals that the overall 2023 air pollution levels in Jakarta were arguably the worst since 2019. Despite improvements between 2020 and 2022, the rise of pollution in 2023 is a notable setback. Over 29 million people …

Air quality in major Indian cities over the winter months

The objective of this study is to conduct a comparative analysis of winter pollution PM2.5 levels in major cities in India, Including Mumbai, Varanasi, Patna, Delhi, Chandigarh, Lucknow, and Kolkata, for the years 2022-2023 and 2023-2024. By analysing temporal trends in PM2.5 levels and comparing pollution levels across cities, this …

2023 world air quality report

Bihar's Begusarai emerged as the world's most polluted metropolitan area while Delhi was identified as the capital city with the poorest air quality, according to this report by the Swiss organisation IQAir. The 2023 World Air Quality Report provides a global review of air quality data for the year 2023. …

Revocation of actions under stage I ('Poor' Air quality, AQI: 201-300) of GRAP

The Commission for Air Quality Management in National Capital Region and Adjoining Areas (CAQM) on February 27, 2024, issued an order regarding the Revocation of actions under stage I ('Poor' Air quality, AQI: 201-300 of GRAP. The sub-committee in its meeting held on February 27, 2024, further reviewed the air …

Catalysing local action for clean air: a guidebook to map hyperlocal sources of air pollution

This study proposes a complementing approach to existing scientific studies in generating hyperlocal information on the causes of pollution in a city. The methodology has been developed and refined in close consultation and coordination with DoE (Department of Environment, (GNCTD)), Delhi. With a dedicated field team and geographic information system …

India monthly ambient air quality snapshot: January2024

India’s air quality deteriorated in January 2024, as the winter season and low wind speed trapped pollutants near the surface, according to this report by the Centre for Research on Energy and Clean Air (CREA). The report, titled “India Monthly Ambient Air Quality Snapshot: January 2024”, analysed the data from …

Tracing the hazy air 2024: progress report on National Clean Air Programme (NCAP)

The National Clean Air Programme (NCAP) was launched in India in 2019 and aimed to significantly enhance the air quality in India by 2024 by reducing PM concentration by 20-30 per cent, which in 2022 has been extended to 2026, aiming to have a 40% reduction in pollution levels compared …

Five years of the National Clean Air Programme

The five-year analysis of the programme presents a nuanced picture of the strides and persistent challenges in improving air quality. The report reveals a mixed scenario, showcasing significant reductions in PM2.5 and PM10 levels in cities like Varanasi, Agra and Jodhpur while certain other cities grapple with escalating pollution concentrations.

Action taken report by MoEF&CC on steps taken to prevent, control and abate air pollution in Delhi NCR, 02/01/2024

Action taken report by MoEF&CC in OA No 663 of 2023 "In re News item published in Indian Express dated 07.10.2023 titled GRAP Stage 1 kicks in as air quality dips to poor, condition likely to prevail till Sunday" dated 02/01/2024. The report has been filed in compliance with the …

Real-world solutions for clean air and health: six city examples to inspire action on urban air pollution

Air pollution is the largest environmental threat to human health worldwide. Health professionals and agencies are usually the most trusted voices in their communities, so when they are actively engaged on climate change and air pollution, they can reframe these is sues as questions of public health and help move …

Revocation of Actions under stage-Ill (‘Severe’ Air quality) of revised Graded Response Action plan in Delhi-NCR

The Commission for Air Quality management (CAQM) issued an order to revoke the restrictions under the Graded Response Action Plan(GRAP) stage- III, after an improvement witnessed in the average Air Quality Index (AQI) of the city which was recorded at 312. While comprehensively analyzing the overall air quality parameters of …

From pollution to solution in six African cities

Africa is home to the world’s youngest population and the world’s fastest growing cities. City planners and policy makers across the continent are addressing the challenges that these demographic trends pose to the creation of an environment in which young people can thrive. As the policy brief, From Pollution to …

Gazette Notification regarding Restriction of entering all passenger buses in Delhi except CNG / Electric and BS-VI during GRAP IV

The Delhi government has notified that the entry of buses, barring CNG, BSVI diesel and electric ones will be regulated in the capital, if restrictions under the final stage of the Centre's air pollution control plan are invoked. Stage IV is the final stage of the Graded Response Action Plan …

Revocation of actions under Stage-IV (‘Severe+’ Air Quality) of revised Graded Response Action Plan in Delhi-NCR

The Commission for Air Quality Management (CAQM) in the National Capital Region (NCR) and adjoining areas, has issued an order revoking the GRAP Stage IV. This order was issued on November 18, 2023. It may be recalled that CAQM, through its recent order dated October 6, 2023, had announced the …

Implementation of actions under Stage-IV ('severe+'Air Quality) of revised Graded Response Action Plan in Delhi-NCR- steps to be taken

Centre has taken a call to invoke all actions as envisaged under Stage-IV of the Graded Response Action Plan (GRAP) – ‘Severe+’ Air Quality (Delhi’s AQI > 450), with immediate effect in the entire national capital region (NCR). Commission for Air Quality Management in NCR and adjoining areas invoked the …

Order of the National Green Tribunal regarding air pollution affecting various states in India, 03/11/2023

The National Green Tribunal (NGT), November 3 directed the Chief Secretaries of the states where the cities air quality index (AQI) has dipped to severe, very poor and poor to take immediate action and submit an action taken report before the tribunal before the next date of hearing, November 10. …

Improving the capacity of countries to report on air quality in cities

In 2019, WHO estimated that 6.7 million premature deaths could be attributed to ambient and household air pollution from particulate matter (particles with a diameter less than 2.5 μm, PM2.5. Of the 4.2 million deaths attributed specifically to ambient air pollution exposures. In 2021, WHO updated its air quality guidelines …

The condition of air quality in major cities and industrial areas

The Union Ministry of Environment, Forest And Climate Changehas identified 123 non-attainment cities, where PM10 concentrations have exceeded the National Ambient Air Quality Standards for five consecutive years, said Ashwini Kumar Choubey, Union minister of state for environment, forest and climate change told the Rajya Sabha. To address air pollution, …

Improving air quality in cities through transport-focused low- and zero-emission zones: legal pathways and opportunities for India

This study identifies and discusses legal pathways for implementing low-emission zones (LEZs) and zero-emission zones (ZEZs) in India at the national, state, and city levels. The authors partnered with an environmental law expert to identify relevant provisions in Indian law to build the legal pathways, and each of the five …

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