Much before air pollution emerged as a critical health and environment issue in India, we developed state-of-the-art capacities for studying air quality. Our research focusses on a range of issues, including ambient air quality and apportionment of contributing sources , indoor air quality assessment for urban and rural households, regional scale assessment, impacts on health and agriculture, and capacity building of stakeholders for better management. Our research and analyses have been taken into account by policy makers for improvements in various standards and policies.



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    Receptor Modelling Based Source Apportionment Study of Ambient Particulate Matter in Patna City, Bihar

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  • air pollution

    Position Paper

    Opportunities with Biofuel: Co-benefit of Air Quality Improvement

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    Matters of Particulate Matter: An Air Pollution Education Initiative by TERI

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    Nudging MSMEs towards natural gas to lighten Delhi's air pollution burden

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    Can cleaner air reduce respiratory illnesses?

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Air Pollution in India: Major Issues and Challenges

This article foregrounds the challenges India is currently facing in reducing air pollution and bringing the level of air quality to a certain standard. It also discusses solutions that could be adopted to combat the national crisis.

Air Quality and Public Health Challenges: The battle can be won

Ms Meena Sehgal

It is time to take action on air pollution using both technology and awareness as major methods and it needs strong incentive mechanisms to ensure participation both by farmers and clean-energy producers

Vulnerability Index Tool: Vulnerability assessment for health

Ms Meena Sehgal
Ms Vidhu Gupta

A prototype digital tool is being developed for state health departments in India to upload data, and the vulnerability index can be generated using the tool.

Air Pollution Health Effects online tool

Ms Meena Sehgal
Ms Vidhu Gupta

This tool was created in collaboration with researchers from North Carolina State University (NCSU), All India Institute of Medical Sciences (AIIMS), Statconsulta and sponsored by DST.

COVID-19 lockdown: Cleaner air and health benefits

Ms Mahima Uttreja
Ms Meena Sehgal

During COVID-19 pandemic and subsequent lockdown, the clear skies and clean air have turned out to be the blessings in disguise for the millions affected due to air pollution in India.

अगले 10 साल हैं ज़रूरी: WSDS में होगी 2030 के लक्ष्यों को पूरा करने के लिए चर्चा

Ms Shweta

- 20 देशों के प्रतिनिधि आएंगे साथ एक ही मंच पर - वायु प्रदूषण, ई-गतिशीलता, नवीकरणीय ऊर्जा, ऊर्जा दक्षता, हरित वित्त, नीली अर्थव्यवस्था, टिकाऊ खपत, कई मुख विषयों पर होगी चर्चा। - सतत विकास में योगदान की होगी पहचान, सस्टेनेबल डेवलपमेंट लीडरशिप अवार्ड से नवाज़ा जाएगा।


Webinar on Health Effects of Air Pollution (Pune and Nashik)

June 29, 2021
to June 29, 2021

The webinar under the Clean Air Project India, will address the severe health issues resulting from air pollution followed by a panel discussion with health experts dealing with patients suffering from diseases that can be attributed to air pollution.

Webinar on 'Restoring Air Quality for Healthy Ecosystem'

June 4, 2021
to June 4, 2021

The webinar under the Clean Air Project India, will focus on the issue of restoring health with a healthy ecosystem. It will also hold an expert session for stakeholders to discuss issues related to health and air pollution.

Media sensitization workshop on Air pollution, sources, and impacts in Pune and Nashik

March 9, 2021
to March 9, 2021

The event aims to sensitize and build capacity of media professionals for effective and adequate reporting on air pollution and the possible solutions for cities of Lucknow and Kanpur

Webinar II on 'Air Quality and Public Health Challenges'

February 19, 2021
to February 19, 2021

The second webinar in the series will focus on health impact challenges that is posed by exposure to air pollution exposure especifically in the region of South Asia.

Clearing the Air – Driving central and state level actions

December 7, 2020
to December 7, 2020

The planned webinar on 7th Dec 2020 at 6 pm (IST) will have an Inaugural Address by Honourable Shri Dr Shashi Tharoor, (MP, Board Member, AirQualityAsia) and an Opening Address by Honourable Union Minister of Environment, Forest and Climate Change, Shri Prakash Javadekar.

Inter School Competitions - Under Clean Air Project in India

October 28, 2020
to November 30, 2020

TERI, in partnership with the Swiss Agency for Development and Cooperation (SDC), has initiated a project Clean Air Project in India (CAP India) to support India's effort for improving air quality. CAP India announces interschool competitions for all the project participating schools across Pune, Nashik, Lucknow and Kanpur.


75% of adolescents in East Delhi feel breathlessness, finds study

September 20, 2021 |
September 20, 2021
The Times of India

According to TERI report, titled "PM2.5 in ecologically different districts in India:characteristics and health effects," around 75% of adolescents aged between 14 and 17 years in east Delhi complained of breathlessness.

Act now to avert the imminent air pollution crisis. There is a way out

September 3, 2021
| Mr Ajay Shankar
| Hindustan Times

Every year, when the rice crop is harvested in north India before Diwali and the crop residue is burnt in the fields, air pollution rises well above danger levels. There is a health crisis due to its impact on the respiratory system. This year, the impact on health of those who have recovered from Covid-19, whose numbers are quite large, can be far worse. Surely, we need to act decisively to avoid a repeat of this annual health crisis.

Delhi: Building sites could be fined, shut under new dust rules

August 4, 2021 |
August 4, 2021
The Times of India

A Dust Management Committee, comprising of experts from IIT Delhi, TERI and Delhi Pollution Control Committee has submitted a dust management plan to the Delhi government, under which warnings will be issued to the project proponent if the PM10 and PM2.5 levels at the site are more than 25% of the air quality readings at the nearest monitoring station.

Beyond policies, the ASTRA India needs to defeat pollution and claim clean air

February 28, 2021
| Mr Shivang Agarwal
| Dr Sumit Sharma
| News18

In 2020, Covid-19 pandemic forced the government to put a hold on all activities related to transport, industries, construction, and several other anthropogenic pursuits responsible for air pollution. The air was relatively cleaner and sky clearer, until the unlock phase was announced, which took away a small yet gratifying time for citizens of India. However, despite improvements during the lockdown, air quality in a city like Delhi remained way below the desired national standards and WHO guidelines.

Reducing air pollution from transport

February 11, 2021
| Mr Ajay Shankar
| ET Energyworld

Air pollution in the NCR is usually many times higher than the permissible limits. The adverse health effects of this are severe. Transport contributes to about 25% of the air pollution. The bulk of the air pollution is caused by commercial vehicles, trucks, buses, cabs, three wheelers and two wheelers. These run far more than private automobiles. During the severe lockdown last year when there were no vehicles on the road, there was a continuous welcome stretch of clean air and blue skies.

Time for a different approach to crop burning

January 28, 2021
| Mr Ajay Shankar
| ET Energy World

Burning of the crop residue in the fields of North India after the harvesting of the paddy crop before Diwali leads to a very sharp spike in air pollution everyyear. This stays through the winter. Such high levels of air pollution cause a health emergency. There is a public outcry and demand for effective action and a sense of frustration at the lack of progress in solving the problem.


Could the National Capital Region serve as a control region for effective air quality management in Delhi?

November 4, 2020

Air pollution does not follow administrative boundaries, and needs to be tackled at the regional "airshed" level at which it is caused. Identifying the appropriate candidates for airshed management requires scientific analysis using systematically developed emissions inventories and dispersion models to simulate the impact of the estimated emissions on air quality.

Emissions control in thermal power stations: Issues, challenges, and the way forward

February 21, 2020

As per TERI's analysis, of the total environmental pollution in 2016, the power sector reportedly accounted for 51% of sulphur dioxide (SO2), 43% of carbon dioxide (CO2), 20% of oxides of nitrogen (NOx), and 7% of PM2.5 emissions.

Crop residue management: Solution to achieve better air quality

January 30, 2020

Residents of different cities (probably villages too) of India breathe some of the least healthy air of the globe. During 2017, about 76.8% of the population of India were exposed to annual population-weighted mean PM2·5 greater than the limit recommended by the National Ambient Air Quality Standards (NAAQ: 40 mg/m3) (Balakrishnan, Dey, Gupta, et al. 2019). Over last five years, the annual population-weighted mean ambient PM2·5 concentrations were significantly higher over the Indo- Gangetic Plain (IGP) region in comparison to other parts of the country.

Fleet Modernization: A solution to achieve better air quality

December 10, 2019

India's transport demand has grown from a total of 5.3 million in 1981 to 230 million in 2016, with two-wheelers and cars having 73% and 14% share, respectively. Commercial vehicles though constitute only about 5% of the total fleet, contribute to nearly 80% of total PM emissions.

Phase-wise implementation of fleet modernization (transforming pre BS-IV commercial vehicles to BS-VI) would lead to a 40-80% reduction in PM and NOx emissions from the sector by 2025.

Opportunities with Biofuel: Co-benefit of Air Quality Improvement

December 5, 2019

While biofuels have been discussed as one of the ways to reduce air pollution, changing the process of bio-diesel production is needed to reduce tailpipe emissions of nanoparticles. These are lesser known pollutants even more harmful than PM2.5 and PM10.

Position paper on Improving Inspection and Maintenance System for In-use Vehicles in India

March 3, 2017

The transport sector is an important contributor to pollution in cities. The sector accounts for a significant contribution in PM2.5 concentrations in most Indian cities. In Bengaluru, the sector accounts for almost 50% of PM2.5 concentrations.

Area Convener, Centre for Environmental Studies