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.

This study, as part of the USAID-supported Cleaner Air and Better Health (CABH) project, analyses the public accessibility and quality of the CEMS data relayed by various state OCEMS portals. It makes recommendations for consolidating CEMS regulations and providing legal sanctity to CEMS data.

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 to 2017.

This document summarizes several air quality measurement and modelling methods that can be used to estimate ground-level air pollutant concentrations and presents multiple approaches to monitoring ambient air pollution at different spatial and temporal scales.

Rising air pollution can cut life expectancy by more than five years per person in South Asia, one of the world’s most polluted regions, according to a report which flagged the growing burden of hazardous air on health.

The Air Quality Management (AQM) system in Tajikistan needs strengthening in its key policy and institutional as well as technical aspects to reduce health impacts of air pollution in the most polluted airsheds (Dushanbe and other urban centers).

Air pollution, a critical global environmental problem, severely threatens human health and well-being. To address this crisis, global stocktaking and transparency is crucial. Measurement, reporting, and verification of emissions are vital, necessitating tools like low-cost sensors and satellite systems.

Rapid population growth, industrialization, and urbanization combined with delayed enactment of environmental policies have led to serious air quality problems across Asia.

Every winter, New Delhi’s Air Quality Index (AQI) becomes a central talking point amongst mainstream media, policymakers, and on social media. However, the issue of toxic air goes beyond the administrative boundaries of Delhi-NCR and affects millions of people – especially those residing in the Indo-Gangetic Plain (IGP).