Delhi's annual average PM2. 5 concentration in 2021–22 was 100 μg/m3—20 times more
than the WHO guideline of 5 μg/m3. This is an improvement compared to the limited …

The oxidative potential (OP) of particulate matter (PM) is a major driver of PM-associated
health effects. In India, the emission sources defining PM-OP, and their local/regional nature …

Low-cost sensors for measuring particulate matter (PM) offer the ability to understand human
exposure to air pollution at spatiotemporal scales that have previously been impractical …

Aerosols affect Earth's climate both directly and indirectly, which is the largest uncertainty in
the assessment of radiative forcings affecting anthropogenic climate change. The standard …

Delhi, India, routinely experiences some of the world's highest urban particulate matter
concentrations. We established the Delhi Aerosol Supersite study to provide long-term …

Delhi, the capital of India, suffers from heavy local emissions as well as regional transport of
air pollutants, resulting in severe aerosol loadings. To determine the sources of these …

The elevated levels of fine particulate matter (PM) and its associated health concerns are
one of the major cause of apprehension for society as well as for policymakers in the region …

Delhi is one of the most polluted cities worldwide and a comprehensive understanding and
deeper insight into the air pollution and its sources is of high importance. We report 5 …

Gaseous and particulate chlorine species play an important role in modulating tropospheric
oxidation capacity, aerosol water uptake, visibility degradation, and human health. The lack …

Abstract The Government of India (GOI) announced a nationwide lockdown starting 25th
March 2020 to contain the spread of COVID-19, leading to an unprecedented decline in …