Clean Air For All

Clean Air for All is not just a vision—it’s an urgent necessity. India’s cities are choking under dangerous levels of air pollution, severely affecting public health and well-being. At CSTEP, we are harnessing science, data, and technology to drive evidence-based, targeted interventions for cleaner air across the country.

Pollution Impact
  • 8.1 million

    Deaths caused by air pollution globally in 2021

  • 1.4% of GDP

    Economic loss due to air pollution in 2019

  • 17/130

    Cities meeting PM10 standards of NAAQS in 2024–25

  • 99%

    World’s population living in areas exceeding WHO air quality guidelines in 2019

Why It Matters

Air pollution is one of the leading environmental health risks globally, responsible for over 9 million premature deaths each year. In India, where many urban areas regularly exceed safe air quality limits, the need for timely and precise action is critical.
CSTEP’s research empowers policymakers with robust, real-time data using tools like low-cost sensors and satellite monitoring. By building institutional capacity and enabling data-driven strategies, this work helps lay the foundation for a healthier, more equitable, and environmentally secure future.

Our Approach

CSTEP adopts a science-driven, technology-enabled approach to address the challenge of air pollution. We work closely with state and central pollution control boards to identify pollution sources through advanced emissions inventory modelling and source apportionment studies. By leveraging cutting-edge tools—such as low-cost sensor networks, mobile monitoring units, and satellite-based observations—we generate granular, real-time air quality data. Our efforts also focus on strengthening institutional capacity through training and knowledge-sharing, ensuring that agencies can independently assess air quality and implement effective, location-specific interventions. This integrated approach bridges scientific research and policy action to create a lasting impact.

SDGs we work on

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