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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    Yearender 2020

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    Position Paper

    Opportunities with Biofuel: Co-benefit of Air Quality Improvement

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    Prevention better than cure

    3rd December 2020 | The Pioneer

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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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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।

Can cleaner air reduce respiratory illnesses?

Ms Meena Sehgal

The prototype tool has been developed by researchers at TERI, NCSU, AIIMS, Safdarjung Hospital and Vardhman Mahavir College, Statconsulta with support from DST.

वायु प्रदूषण से बचने के विकल्पों को प्राथमिकता देने की सख्त ज़रूरत

Mr Ajay Shankar

पिछले महीने उत्तर भारत में वायु प्रदूषण असहनीय स्तर पर पहुंच गया था। ज़हरीली हवा को देखते हुए दिल्ली-एनसीआर में जन स्वास्थ्य आपातकाल की घोषणा कर दी गयी थी। निर्माण कार्यों और पूरी ठंड के दौरान पटाखे फोड़ने पर प्रतिबंध लगा दिया गया। पर वायु प्रदूषण की समस्या सिर्फ़ दिल्ली तक ही सीमित नहीं है। भारत के दूसरे शहर भी वायु प्रदूषण से हांफ रहे हैं। दिल्ली के पड़ोसी राज्य उत्तरप्रदेश के प्रयागराज (इलाहबाद), कानपुर, आगरा, और लखनऊ भी प्रदूषित शहरों की श्रेणी में आते हैं।


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.

Webinar on Agricultural residue management: Solution to achieve better air quality

October 16, 2020
to October 16, 2020

Air pollution is a serious concern in India, which becomes even more severe during post-harvest seasons. Agricultural residue burning has emerged out as an important contributor to very high pollution levels during the months of October and November.

On 16th October 2020, 03:00 PM - 04:30 PM IST

Emission control in Thermal Power Station: Key Issues, Challenges and Way Forward

October 7, 2020
to October 7, 2020

The webinar aims to discuss key financial, regulatory, and technical issues and challenges in controlling emissions at thermal power stations

E-launch of 'A Fiscally Responsible Green Stimulus' report

August 24, 2020
to August 24, 2020

Recognising fiscal constraints, the report explores policy and regulatory interventions that would encourage private investment to provide a green stimulus to economic recovery in India.

2020 Clean Air Crowdsourcing Competition

December 24, 2019
to January 31, 2020

Attention all University Students!

With recent episodes of extreme air pollution in New Delhi calling attention to the problem in India, this is your opportunity to suggest ways of helping to fix the problem in the capital and elsewhere in the country.


Prevention better than cure

December 3, 2020
| Mr M A Emmanuel
| Mr R Suresh
| Mr Shanmuganathan K
| The Pioneer

Reducing emissions is a wise, long-term investment that contributes to several development goals and ultimately will yield substantial benefits. Increasing urbanisation and economic development activities along with a lack of effective implementation are fuelling air pollution problems. Addressing the issue of a deteriorating air quality requires multi-level partnerships, incorporating the Government, the private sector, the industry, academia, research institutes, the civil society and associations with more cohesive efforts.

Gurugram: Gains lost? Farm fires spike after 3-year dip

November 13, 2020 |
November 13, 2020
The Times of India

According to data compiled between 2016 and 2020 by TERI, September this year was the worst since 2016 in terms of stubble burning cases recorded.

Gurugram’s October air poorer than last year, but major pollutants saw a decline

November 5, 2020 |
November 5, 2020
The Times of India

The presence of major pollutants is low this year because of the lockdown. High temperature combustion resulting from emission of vehicles, power plants, DG sets and industries are the prime sources of nitrogen oxide in the air. But fortunately, a lower number of vehicles and factories were operating this year, said Mr Sumit Sharma, Director, Earth Science and Climate Change, TERI.

Hope on air quality: How air quality in north India can be transformed within 5 years

March 4, 2020
| Mr Ajay Shankar
| The Financial Express

Air pollution in Delhi has been rightly described as a health emergency. In the Union budget, the finance minister enhanced the outlay for reducing air pollution to Rs 4,400 crore, almost a tenfold increase, and states should follow this lead. The National Clean Air Program, started over a year back, has the goal of improving air quality by 25-30%. Since the causes of, and mitigation measures for air pollution are better understood now, it is time to raise the nation’s ambition to getting fully clean air by 2025. Getting clean air needs smart interventions.

Poisoning air in the breath will be even more dangerous in 10 years, steps have to be taken together

December 31, 2019
| Ms Rozita Singh, Head of Solutions Mapping, Accelerator Lab at UNDP in India.
| Mr Martand Shardul
| Live Hindustan

Air pollution is a problem that has no immediate solution but will have to be constantly trying to reduce it. To deal with this, the government has also initiated several initiatives. For example, the Ujjwala scheme provides LPG fuel to the poor households who use solid biomass for cooking such as wood and cow dung. Pollution from the smoke emanating from it not only spreads but also has a bad effect on the health of women. Similarly, encouraging efforts are being made at various levels to promote low carbon technologies for power generation and transportation.

सांस में ज़हर घोलती हवा होगी 10 सालों में और भी खतरनाक, मिलकर उठाने होंगे कदम

December 31, 2019
| Ms Rozita Singh
| Mr Martand Shardul
| Live Hindustan

वायु प्रदूषण एक ऐसी समस्या है जिसका तत्काल कोई समाधान नहीं है लेकिन इसे कम करने के लिए लगातार प्रयास करते रहना होगा। इससे निपटने के लिए सरकार ने कई पहल भी शुरू की है उदाहरण के लिए, उज्ज्वला योजना उन गरीब घरों को एलपीजी ईंधन मुहैय्या करवाती है जो खाना पकाने के लिए ठोस बायोमास का इस्तेमाल करते हैं जैसे-लकड़ी और गोबर के उपले। इससे निकलने वाले धुएं से प्रदूषण तो फैलता ही है साथ ही यह महिलाओं के स्वास्थ्य पर ख़राब असर करता है। इसी प्रकार, बिजली उत्पादन और परिवहन के लिए कम कार्बन प्रौद्योगिकियों को बढ़ावा देने के लिए विभिन्न स्तरों पर उत्साहजनक प्रयास किए जा रहे हैं।


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.



Director, Earth Science and Climate Change
Area Convener, Centre for Environmental Studies