scholarly journals Dry Deposition Fluxes and Mass Size Distributions of Pb, Cu, and Zn Measured in Southern Lake Michigan during AEOLOS

1998 ◽  
Vol 32 (11) ◽  
pp. 1629-1635 ◽  
Author(s):  
Rajendra D. Paode ◽  
Sait C. Sofuoglu ◽  
Jakkris Sivadechathep ◽  
Kenneth E. Noll ◽  
Thomas M. Holsen ◽  
...  
1998 ◽  
Vol 29 (4) ◽  
pp. 281-293 ◽  
Author(s):  
Sait C. Sofuoglu ◽  
Rajendra D. Paode ◽  
Jakkris Sivadechathep ◽  
Kenneth E. Noll ◽  
Thomas M. Holsen ◽  
...  

1993 ◽  
Vol 27 (7) ◽  
pp. 1327-1333 ◽  
Author(s):  
Thomas M. Holsen ◽  
Kenneth E. Noll ◽  
Guor Cheng Fang ◽  
Wen Jhy Lee ◽  
Jui Min Lin ◽  
...  

1998 ◽  
Vol 32 (11) ◽  
pp. 1623-1628 ◽  
Author(s):  
Maria J. Zufall ◽  
Cliff I. Davidson ◽  
Peter F. Caffrey ◽  
John M. Ondov

2000 ◽  
Vol 34 (10) ◽  
pp. 1887-1892 ◽  
Author(s):  
Usama Shahin ◽  
Seung-Muk Yi ◽  
Rajendra D. Paode ◽  
Thomas M. Holsen

2021 ◽  
Vol 21 (3) ◽  
pp. 2105-2124
Author(s):  
Songyun Fan ◽  
Yuan Gao ◽  
Robert M. Sherrell ◽  
Shun Yu ◽  
Kaixuan Bu

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.


2020 ◽  
Author(s):  
Songyun Fan ◽  
Yuan Gao ◽  
Robert M. Sherrell ◽  
Shun Yu ◽  
Kaixuan Bu

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.


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