Local incomplete combustion emissions define the PM2.5 oxidative potential in Northern India

D Bhattu, SN Tripathi, HS Bhowmik, V Moschos… - Nature …, 2024 - nature.com
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 …

Air quality changes in Delhi due to open waste burning: an accidental fire in Bhalswa landfill

M Sharma, M Khare, RK Mishra - International Journal of Environmental …, 2024 - Springer
Open waste burning is a significant contributor to air pollution in urban cities. The
contribution includes sources from local and centralized waste burning. This paper focuses …

Evaluation of WRF-Chem-simulated meteorology and aerosols over northern India during the severe pollution episode of 2016

P Agarwal, DS Stevenson… - Atmospheric Chemistry and …, 2024 - acp.copernicus.org
We use a state-of-the-art regional chemistry transport model (WRF-Chem v4. 2.1) to simulate
particulate air pollution over northern India during September–November 2016. This period …

Real-time quantification and source apportionment of fine particulate matter including organics and elements in Delhi during summertime

AK Shukla, V Lalchandani, D Bhattu, JS Dave… - Atmospheric …, 2021 - Elsevier
Delhi is one of the most polluted cities globally, with frequent severe air pollution episodes
and haze events occurring in recent years, thereby compelling us to understand the sources …

Biomass-burning sources control ambient particulate matter, but traffic and industrial sources control volatile organic compound (VOC) emissions and secondary …

A Awasthi, B Sinha, H Hakkim, S Mishra… - Atmospheric …, 2024 - acp.copernicus.org
Volatile organic compounds (VOCs) and particulate matter (PM) are major constituents of
smog. Delhi experiences severe smog during the post-monsoon season, but a quantitative …

Biogenic and anthropogenic sources of isoprene and monoterpenes and their secondary organic aerosol in Delhi, India

DJ Bryant, BS Nelson, SJ Swift… - Atmospheric …, 2023 - acp.copernicus.org
Isoprene and monoterpene emissions to the atmosphere are generally dominated by
biogenic sources. The oxidation of these compounds can lead to the production of …

Analysis of aerosol liquid water content and its role in visibility reduction in Delhi

U Ali, M Faisal, D Ganguly, M Kumar, V Singh - Science of the Total …, 2023 - Elsevier
Aerosols undergo significant changes due to water uptake under high RH conditions,
leading to changes in physical, optical, and chemical properties. Detailed assessment and …

Significant chlorine emissions from biomass burning affect the long-term atmospheric chemistry in Asia

D Chang, Q Li, Z Wang, J Dai, X Fu, J Guo… - National science …, 2024 - academic.oup.com
Biomass burning (BB) is a major source of trace gases and particles in the atmosphere,
influencing air quality, radiative balance, and climate. Previous studies have mainly focused …

Comprehensive the seasonal characterization of atmospheric submicron particles at urban sites in the North China Plain

P Xu, Y Yang, W Gao, W Huang, Y Yu, B Hu, J Hu… - Atmospheric …, 2024 - Elsevier
To comprehensively investigate the seasonal variations in submicron particles (PM 1= NR-
PM 1+ BC) composition, sources and chemical processes, an Aerodyne high-resolution time …

Evaluation of CESM1 (WACCM) free-running and specified dynamics atmospheric composition simulations using global multispecies satellite data records

L Froidevaux, DE Kinnison, R Wang… - Atmospheric …, 2019 - acp.copernicus.org
We have analyzed near-global stratospheric data (and mesospheric data as well for H 2 O)
in terms of absolute abundances, variability, and trends for O 3, H 2 O, HCl, N 2 O, and HNO …