Chemical characteristics, sources, and formation mechanisms of PM2. 5 before, during, and after the Spring Festival in a plateau city of Southwest China

J Shi, L Deng, W Du, X Han, Y Zhong, W Rao… - Atmospheric …, 2024 - Elsevier
To study chemical characteristics, sources and formation mechanisms of PM 2.5 during the
Spring Festival (SF), 39 elements, 9 water–soluble ions (WSIs) and 8 fractions of …

High-time resolution PM2. 5 source apportionment assisted by spectrum-based characteristics analysis

J Liu, F Ma, TL Chen, D Jiang, M Du, X Zhang… - Science of the Total …, 2024 - Elsevier
Characteristics extraction and anomaly analysis based on frequency spectrum can provide
crucial support for source apportionment of PM 2.5 pollution. In this study, an effective …

Source apportionment, health risk assessment, and trajectory analysis of black carbon and light absorption properties of black and brown carbon in Delhi, India

V Goel, S Jain, V Singh, M Kumar - Environmental Science and Pollution …, 2023 - Springer
Black Carbon (BC) is an important atmospheric pollutant, well recognized for adverse health
and climatic effects. The present work discusses the monthly and seasonal variations of BC …

Health risk assessment using chemical signatures of fine and coarse particles collected at breathing level height during firework display in New Delhi, India

A Rathee, S Yadav - Human and Ecological Risk Assessment: An …, 2022 - Taylor & Francis
Sporadic emissions of fine (PM2. 5) and coarse (PM2. 5-10) particles at breathing level
height (BLH) during Diwali, before Diwali and after Diwali (DD, BD and AD) in fireworks ban …

Sensitivity of Source Apportionment of Ambient PM2.5-Bound Elements to Input Concentration Data

T Zhang, Y Su, J Debosz, M Noble, A Munoz, X Xu - Atmosphere, 2023 - mdpi.com
This study investigated the sensitivity of the positive matrix factorization (PMF) model using
concentrations of PM2. 5-bound elements in Windsor, Ontario, Canada. Five scenarios were …

Comparative analysis of winter composite-PM2. 5 in Central Indo Gangetic Plain cities: Combined organic and inorganic source apportionment and characterization …

A Lakra, AK Shukla, HS Bhowmik, AK Yadav… - Atmospheric …, 2024 - Elsevier
To gain insights into air quality dynamics, a high-end instrument such as High-Resolution
Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS) alongside an Aethalometer was …

Source apportionment and analysis of spatial representativeness of fine particle pollution for an urban residential area in Lucknow, India

S Bojjagani, SSK Mahanta, HO Prasad… - Environmental …, 2023 - liebertpub.com
Land use changes in the wake of urbanization have arranged the urban residential sites to
be encircled by anthropogenic activities, resulting in greater exposure to air pollution. There …

Spatio-temporal variation of C-PM2. 5 (composition based PM2. 5) sources using PMF* PMF (double-PMF) and single-combined PMF technique on real-time non …

AK Shukla, SN Tripathi, F Canonaco… - Atmospheric …, 2023 - Elsevier
Delhi's post-monsoon and winter haze reduces visibility, causes health hazards, and
interrupts usual routines. Multiple source apportionment (SA) studies recently apportioned …

Variation in oxidative potential of fine particulate matter and its association with chemical constituents at a regional site in India

S Dubey, P Manwani, S Yadav, HC Phuleria - Science of The Total …, 2024 - Elsevier
Abstract Fine particulate matter (PM 2.5) constituents are greatly affected by site-specific
emission sources and are one of the main reasons for oxidative stress that leads to …

Particulate/gaseous pollutants and solar radiation fluctuations over Bhubaneswar amidst two special events: Diwali and solar eclipse

M Mishra, R Boopathy, C Mallik, T Das - Atmospheric Pollution Research, 2024 - Elsevier
This work presents short-term investigations to assess variations in PM 2.5, PM 10, SO 2, NO
2, O 3, CO, BC, light NMHCs (ethane, ethylene, propane, propylene, and acetylene) and …