Reconstructing Primary and Secondary Components of PM2.5 Composition for an Urban Atmosphere
Sailesh N. Behera,Mukesh Sharma +1 more
TLDR
In this paper, a total 360 PM25 samples were collected from six sampling sites for summer and winter seasons in Kanpur city, India and the collected PM25 mass was subjected to chemical speciation for: (1) ionic species (NH+ 4, SO2-4, NO 3, and Cl 3), (2) carbon contents (EC and OC), and (3) elemental contents (Ca, Mg, Na, K, Al, Si, Fe, Ti, Mn, V, Cr, Ni, Zn, Cd, Pb,Abstract:
Total 360 samples (of 8 h each) of PM25 were collected from six sampling sites for summer and winter seasons in Kanpur city, India The collected PM25 mass was subjected to chemical speciation for: (1) ionic species (NH+ 4, SO2– 4, NO– 3, and Cl–), (2) carbon contents (EC and OC), and (3) elemental contents (Ca, Mg, Na, K, Al, Si, Fe, Ti, Mn, V, Cr, Ni, Zn, Cd, Pb, Cu, As, and Se) Primary and secondary components of PM25 were assessed from speciation results The influence of marine source to PM25 was negligible, whereas the contribution of crustal dust was significant (10% in summer and 7% in winter) A mass reconstruction approach for PM25 could distinctly establish primary and secondary components of measured PM25 as: (1) Primary component (27% in summer and 24% in winter): crustal, elemental carbon, and organic mass, (2) Secondary component (45% in summer and 50% in winter): inorganic and organic mass, and (3) others: unidentified mass (27% in summer and 26% in winter) The secondary inorganic read more
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Elemental Composition of PM2.5 and PM10 and Health Risks Assessment in the Industrial Districts of Chelyabinsk, South Ural Region, Russia
Tatyana G. Krupnova,Olga V. Rakova,Kirill A. Bondarenko,Artem F. Saifullin,Darya A. Popova,Sanja Potgieter-Vermaak,Ricardo H. M. Godoi +6 more
TL;DR: In this paper, a typical industrial Russian city, Chelyabinsk, was monitored in three destinations, one characterized by high traffic volumes and two by industrial zone emissions, and the mass concentration and trace metal content of PM2.5 and PM10 were obtained from samples collected during four distinct seasons of 2020.
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Effects of organic aerosol loading and fog processing on organic aerosol volatility
TL;DR: A detailed time-resolved chemical characterization and volatility study of winter time ambient non refractory submicron aerosols (NR-PM 1 ) was conducted at Kanpur, a polluted city of India as discussed by the authors.
Journal ArticleDOI
Air pollution scenario analyses of fleet replacement strategies to accomplish reductions in criteria air pollutants and 74 VOCs over India
TL;DR: In this paper , the authors investigated changes in emission in response to substitution of the existing vehicular fleet by cleaner alternatives, using newly compiled spatially disaggregated, gridded, high-resolution road transport emission inventory for India for 2030 (RTEII) of 74 speciated VOCs, CO, SO 2 , NOx, NH 3 , CH 4 , CO 2, BC, OC and PM 2.5 from varied fuels and vehicle technologies that are currently in use in India.
Journal ArticleDOI
A hybrid model to improve WRF-Chem performance for crop burning emissions of PM2.5 and secondary aerosols in North India
TL;DR: In this article , a chemical transport model, WRF-Chem (with chemical mechanisms, RADM2 and MADE/SORGAM), was applied to a domain of 840 × 840 km2 (centered around Delhi).
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Trends and source attribution of PAHs in fine particulate matter at an urban and a rural site in Indo-Gangetic plain
TL;DR: A total of 11 polycyclic aromatic hydrocarbons (PAHs) were identified and analyzed for urban and rural sites on day time and night time basis respectively.
References
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Species contributions to PM2.5 mass concentrations: Revisiting common assumptions for estimating organic mass
Barbara J. Turpin,Ho-Jin Lim +1 more
TL;DR: The authors revisited common assumptions for estimating PM2.5 mass concentration and found that these assumptions can be used to estimate organic mass in a wide range of scenarios, such as PM1.5.
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Ramesh P. Singh,Ramesh P. Singh,Sagnik Dey,Sachchida Nand Tripathi,Vinod Tare,Brent N. Holben +5 more
TL;DR: Aerosol optical properties and spectral behavior of the aerosol optical depth (AOD) over Kanpur, an urban industrial city in the Ganga basin, have been presented for the first time in this paper.
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