Search Results - "Srivastava, Deepchandra"
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Formation of secondary organic aerosols from anthropogenic precursors in laboratory studies
Published in NPJ climate and atmospheric science (24-03-2022)“…Aerosols produced from the oxidation of volatile/semi-volatile organic compounds (VOCs/SVOCs), known as secondary organic aerosol (SOA), account for a…”
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Speciation of organic fraction does matter for source apportionment. Part 1: A one-year campaign in Grenoble (France)
Published in The Science of the total environment (15-05-2018)“…•Source apportionment using key primary and secondary organic molecular markers•Uncommon resolved sources: plant debris, fungal spores, biogenic &…”
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Comparison of Measurement-Based Methodologies to Apportion Secondary Organic Carbon (SOC) in PM2.5: A Review of Recent Studies
Published in Atmosphere (01-11-2018)“…Secondary organic aerosol (SOA) is known to account for a major fraction of airborne particulate matter, with significant impacts on air quality and climate at…”
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Chemical characteristics and source apportionment of particulate matter (PM2.5) in Dammam, Saudi Arabia: Impact of dust storms
Published in Atmospheric Environment: X (01-04-2022)“…Atmospheric particulate matter (PM) is known to be harmful to human and environmental health, with factors including particle size and composition thought to…”
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5
Characterization of products formed from the oxidation of toluene and m-xylene with varying NOx and OH exposure
Published in Chemosphere (Oxford) (01-09-2023)“…Aromatic volatile organic compounds (VOCs) are an important precursor of secondary organic aerosol (SOA) in the urban environment. SOA formed from the…”
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6
Modelling aerosol molecular markers in a 3D air quality model: Focus on anthropogenic organic markers
Published in The Science of the total environment (20-08-2022)“…We developed and implemented in the 3D air quality model CHIMERE the formation of several key anthropogenic aerosol markers including one primary anthropogenic…”
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Analysis and determination of secondary organic aerosol (SOA) tracers (markers) in particulate matter standard reference material (SRM 1649b, urban dust)
Published in Analytical and bioanalytical chemistry (01-09-2019)“…Secondary organic aerosol (SOA) accounts for a significant fraction of particulate matter (PM) in the atmosphere. Source identification, including the SOA…”
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Insight into PM2.5 sources by applying positive matrix factorization (PMF) at urban and rural sites of Beijing
Published in Atmospheric chemistry and physics (01-10-2021)“…This study presents the source apportionment of PM2.5 performed by positive matrix factorization (PMF) on data presented here which were collected at urban…”
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Spatio-temporal variation of C-PM2.5 (composition based PM2.5) sources using PMFPMF (double-PMF) and single-combined PMF technique on real-time non-refractory, BC and elemental measurements during post-monsoon and winter at two sites in Delhi, India
Published in Atmospheric environment (1994) (15-01-2023)“…Delhi's post-monsoon and winter haze reduces visibility, causes health hazards, and interrupts usual routines. Multiple source apportionment (SA) studies…”
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10
Analysis and determination of secondary organic aerosol
Published in Analytical and bioanalytical chemistry (01-09-2019)“…Secondary organic aerosol (SOA) accounts for a significant fraction of particulate matter (PM) in the atmosphere. Source identification, including the SOA…”
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Insight into PM 2.5 sources by applying positive matrix factorization (PMF) at urban and rural sites of Beijing
Published in Atmospheric chemistry and physics (05-10-2021)“…This study presents the source apportionment of PM2.5 performed by positive matrix factorization (PMF) on data presented here which were collected at urban…”
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12
Insight into PM.sub.2.5 sources by applying positive matrix factorization at urban and rural sites of Beijing
Published in Atmospheric chemistry and physics (05-10-2021)“…This study presents the source apportionment of PM.sub.2.5 performed by positive matrix factorization (PMF) on data presented here which were collected at…”
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PM2.5 composition and sources in the San Joaquin Valley of California: A long-term study using ToF-ACSM with the capture vaporizer
Published in Environmental pollution (1987) (01-01-2022)“…The San Joaquin Valley (SJV) of California has suffered persistent particulate matter (PM) pollution despite many years of control efforts. To further…”
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Particulate matter in a lockdown home: evaluation, calibration, results and health risk from an IoT enabled low-cost sensor network for residential air quality monitoring
Published in Environmental science: atmospheres (19-01-2023)“…Exposure to atmospheric particulate matter is associated with a wide array of health impacts. Whilst ambient air pollution exposure is widely discussed both…”
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15
Particle Bound Metals at Major Intersections in an Urban Location and Source Identification Through Use of Metal Markers
Published in Proceedings of the National Academy of Sciences, India, Section A, physical sciences (01-06-2016)“…Air quality monitoring for Kanpur in North India, an industrial city ranked among the top ten most polluted cities worldwide, was conducted in summer 2011…”
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16
Characterization of products formed from the oxidation of toluene and m-xylene with varying NO x and OH exposure
Published in Chemosphere (Oxford) (01-09-2023)“…Aromatic volatile organic compounds (VOCs) are an important precursor of secondary organic aerosol (SOA) in the urban environment. SOA formed from the…”
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17
Speciation of organic fractions does matter for aerosol source apportionment. Part 2: Intensive short-term campaign in the Paris area (France)
Published in The Science of the total environment (01-09-2018)“…The present study aimed at performing PM10 source apportionment, using positive matrix factorization (PMF), based on filter samples collected every 4h at a…”
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Source apportionment of carbonaceous aerosols in Beijing with radiocarbon and organic tracers: insight into the differences between urban and rural sites
Published in Atmospheric chemistry and physics (28-05-2021)“…Carbonaceous aerosol is a dominant component of fine particles in Beijing. However, it is challenging to apportion its sources. Here, we applied a newly…”
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Seasonal Changes in the Oxidative Potential of Urban Air Pollutants: The Influence of Emission Sources and Proton- and Ligand-Mediated Dissolution of Transition Metals
Published in ACS ES&T air (11-10-2024)“…The inhalation of fine particulate matter (PM2.5) is a major contributor to adverse health effects from air pollution worldwide. An important toxicity pathway…”
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An evaluation of source apportionment of fine OC and PM 2.5 by multiple methods: APHH-Beijing campaigns as a case study
Published in Faraday discussions (24-03-2021)“…This study aims to critically evaluate the source apportionment of fine particles by multiple receptor modelling approaches, including carbon mass balance…”
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