scholarly journals Atmospheric Concentration of Trace Elements, Dry Deposition Fluxes and Source Apportionment Study in Mumbai

10.5772/45865 ◽  
2012 ◽  
Author(s):  
D.G. Gajghate ◽  
P. Pipalatkar ◽  
V.V. Khaparde
Keyword(s):  
Trace Elements ◽  
Source Apportionment ◽  
Dry Deposition ◽  
Atmospheric Concentration ◽  
Deposition Fluxes

scholarly journals Determination of the Sampler Type and Rainfall Effect on the Deposition Fluxes of the Polychlorinated Biphenyls

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Askin Birgül ◽  
Yücel Tasdemir
Keyword(s):  
Dry Deposition ◽  
Polychlorinated Biphenyl ◽  
Sampling Site ◽  
Bulk Deposition ◽  
Atmospheric Concentration ◽  
Deposition Fluxes ◽  
Measured Flux ◽  
Deposition Velocities ◽  
Average Flux

Atmospheric concentration and deposition samples were collected between June 2008 and June 2009 in an urban sampling site Yavuzselim, Turkey. Eighty-three polychlorinated biphenyl (PCB) congeners were targeted in the collected samples. It was found that 90% of the total PCB concentration was in the gas phase. Deposition samples were collected by a wet-dry deposition sampler (WDDS) and a bulk deposition sampler (BDS). Average total deposition fluxes measured with the BDS in dry periods was5500±2400 pg/(m2day); average dry deposition fluxes measured by the WDDS in the same period were6400±3300 pg/(m2day). The results indicated that the sampler type affected the measured flux values. Bulk deposition samples were also collected in rainy periods by using the BDS and the average flux value was8700±3100 pg/(m2day). The measured flux values were lower than the values reported for the urban and industrial areas. Dry deposition velocities for the WDDS and BDS samples were calculated0.48±0.35 cm/s and0.13±0.15 cm/s, respectively.

Atmospheric dry deposition fluxes of trace elements measured in Bursa, Turkey

2005 ◽  
Vol 138 (3) ◽  
pp. 462-472 ◽  
Author(s):  
Yücel Tasdemir ◽  
Can Kural
Keyword(s):  
Trace Elements ◽  
Dry Deposition ◽  
Deposition Fluxes

scholarly journals Concentrations, particle-size distributions, and dry deposition fluxes of aerosol trace elements over the Antarctic Peninsula in austral summer

2021 ◽  
Vol 21 (3) ◽  
pp. 2105-2124
Author(s):  
Songyun Fan ◽  
Yuan Gao ◽  
Robert M. Sherrell ◽  
Shun Yu ◽  
Kaixuan Bu
Keyword(s):  
Particle Size ◽  
Trace Elements ◽  
Antarctic Peninsula ◽  
Dry Deposition ◽  
Austral Summer ◽  
Size Distributions ◽  
Western Antarctic Peninsula ◽  
Particle Size Distributions ◽  
Deposition Fluxes ◽  
Palmer Station

Abstract. Size-segregated particulate air samples were collected during the austral summer of 2016–2017 at Palmer Station on Anvers Island, western Antarctic Peninsula, to characterize trace elements in aerosols. Trace elements in aerosol samples – including Al, P, Ca, Ti, V, Mn, Ni, Cu, Zn, Ce, and Pb – were determined by total digestion and a sector field inductively coupled plasma mass spectrometer (SF-ICP-MS). The crustal enrichment factors (EFcrust) and k-means clustering results of particle-size distributions show that these elements are derived primarily from three sources: (1) regional crustal emissions, including possible resuspension of soils containing biogenic P, (2) long-range transport, and (3) sea salt. Elements derived from crustal sources (Al, P, Ti, V, Mn, Ce) with EFcrust<10 were dominated by the coarse-mode particles (>1.8 µm) and peaked around 4.4 µm in diameter, reflecting the regional contributions. Non-crustal elements (Ca, Ni, Cu, Zn, Pb) showed EFcrust>10. Aerosol Pb was primarily dominated by fine-mode particles, peaking at 0.14–0.25 µm, and likely was impacted by air masses from southern South America based on air mass back trajectories. However, Ni, Cu, and Zn were not detectable in most size fractions and did not present clear size patterns. Sea-salt elements (Ca, Na+, K+) showed a single-mode distribution and peaked at 2.5–4.4 µm. The estimated dry deposition fluxes of mineral dust for the austral summer, based on the particle-size distributions of Al measured at Palmer Station, ranged from 0.65 to 28 mg m−2 yr−1 with a mean of 5.5±5.0 mg m−2 yr−1. The estimated dry deposition fluxes of the target trace elements in this study were lower than most fluxes reported previously for coastal Antarctica and suggest that atmospheric input of trace elements through dry deposition processes may play a minor role in determining trace element concentrations in surface seawater over the continental shelf of the western Antarctic Peninsula.

Regional variations in wet and dry deposition fluxes of trace elements in Japan

2006 ◽  
Vol 40 (3) ◽  
pp. 521-531 ◽  
Author(s):  
Masahiro Sakata ◽  
Kohji Marumoto ◽  
Masahiro Narukawa ◽  
Kazuo Asakura
Keyword(s):  
Trace Elements ◽  
Dry Deposition ◽  
Deposition Fluxes ◽  
Wet And Dry Deposition ◽  
Regional Variations

scholarly journals Concentrations, Particle-Size Distributions, and Dry Deposition Fluxes of Aerosol Trace Elements over the Antarctic Peninsula

2020 ◽  
Author(s):  
Songyun Fan ◽  
Yuan Gao ◽  
Robert M. Sherrell ◽  
Shun Yu ◽  
Kaixuan Bu
Keyword(s):  
Trace Elements ◽  
Antarctic Peninsula ◽  
Dry Deposition ◽  
Austral Summer ◽  
Sea Salt ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Deposition Fluxes ◽  
West Antarctic ◽  
Palmer Station

Abstract. Size-segregated particulate air samples were collected during the austral summer of 2016–2017 at Palmer Station on the Anvers Island off the west Antarctic Peninsula, to characterize trace elements in aerosols. Trace elements in aerosol samples, including Al, P, Ca, Ti, V, Mn, Ni, Cu, Zn, Ce, and Pb, were determined by total digestion and sector field inductively coupled plasma mass spectrometer (SF-ICP-MS). The results show that these elements are derived primarily from three sources: (1) regional crustal emissions, (2) long-range transport, and (3) sea-salt aerosols. Elements dominated by a crustal source (Al, P, Ti, V, Mn, Ce) with EFcrust  1 μm) and peaked at 2.5–7.8 μm in diameter, reflecting the contributions of regional crustal sources. Non-crustal elements (Ca, Ni, Cu, Zn, Pb) showed EFcrust > 10. Aerosol Pb was accumulated primarily in fine-mode particles, peaking at 0.078–0.25 μm, and likely was impacted by air masses from South America based on air-mass back trajectories. However, Ni, Cu, and Zn were not detectable in most size fractions and didn't present clear size patterns. Sea-salt elements (Ca, Na, K) showed single mode distribution and peaked at 2.5–7.8 μm. The estimated dry deposition fluxes of dust for the austral summer, based on the particle size distributions of Al measured at Palmer Station, ranged from 0.65 to 28 mg m−2 yr−1 with a mean of 5.5 mg m−2 yr−1. The estimated dry deposition fluxes of the target trace elements in this study were lower than most fluxes reported previously for coastal Antarctica and suggest that atmospheric input of trace elements through dry deposition processes may play a minor role in determining trace element concentrations in surface seawater over the continental shelf of the west Antarctic Peninsula.

Ambient concentrations and dry deposition fluxes of trace elements in Izmir, Turkey

2002 ◽  
Vol 36 (38) ◽  
pp. 5841-5851 ◽  
Author(s):  
Mustafa Odabasi ◽  
Aysen Muezzinoglu ◽  
Ayse Bozlaker
Keyword(s):  
Trace Elements ◽  
Dry Deposition ◽  
Deposition Fluxes ◽  
Ambient Concentrations

Wet and dry deposition fluxes of trace elements in Tokyo Bay

2008 ◽  
Vol 42 (23) ◽  
pp. 5913-5922 ◽  
Author(s):  
Masahiro Sakata ◽  
Yukinori Tani ◽  
Tomoharu Takagi
Keyword(s):  
Trace Elements ◽  
Dry Deposition ◽  
Tokyo Bay ◽  
Deposition Fluxes ◽  
Wet And Dry Deposition

Source apportionment of urban PM2.5 using positive matrix factorization with vertically distributed measurements of trace elements and nonpolar organic compounds

2021 ◽  
Vol 12 (4) ◽  
pp. 200-207
Author(s):  
Ho‐Tang Liao ◽  
Chien‐Lin Lee ◽  
Wei‐Cheng Tsai ◽  
Jian Zhen Yu ◽  
Shih‐Wei Tsai ◽  
...  
Keyword(s):  
Trace Elements ◽  
Source Apportionment ◽  
Organic Compounds ◽  
Matrix Factorization ◽  
Positive Matrix Factorization ◽  
Positive Matrix ◽  
Nonpolar Organic

Characterizing the anthropogenic-induced trace elements in an urban aquatic environment: A source apportionment and risk assessment with uncertainty consideration

2020 ◽  
Vol 275 ◽  
pp. 111288
Author(s):  
Zhenyu Wang ◽  
Qiushi Shen ◽  
Pei Hua ◽  
Shanshan Jiang ◽  
Ruifei Li ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Trace Elements ◽  
Source Apportionment ◽  
Aquatic Environment
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