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@article{1804197,
author = {Lohmann, Rainer and Markham, Erin and Klánová, Jana and Kukučka, Petr and Přibylová, Petra and Gong, Xiangyi and Pockalny, Robert and Yanishevsky, Tatyana and Wagner, Charlotte C. and Sunderland, Elsie M.},
article_location = {WASHINGTON},
article_number = {14},
doi = {http://dx.doi.org/10.1021/acs.est.0c04611},
keywords = {POLYCYCLIC AROMATIC-HYDROCARBONS; HISTORICAL EMISSION INVENTORY; PERSISTENT ORGANIC POLLUTANTS; NORTH-ATLANTIC; ORGANOCHLORINE PESTICIDES; GLOBAL DISTRIBUTION; PHYSICOCHEMICAL PROPERTIES; POLYCHLORINATED-BIPHENYLS; SOUTHERN-OCEAN; PCB CONGENERS},
language = {eng},
issn = {0013-936X},
journal = {Environmental Science & Technology},
title = {Trends of Diverse POPs in Air and Water Across the Western Atlantic Ocean: Strong Gradients in the Ocean but Not in the Air},
url = {https://pubs.acs.org/doi/10.1021/acs.est.0c04611},
volume = {55},
year = {2021}
}
TY - JOUR
ID - 1804197
AU - Lohmann, Rainer - Markham, Erin - Klánová, Jana - Kukučka, Petr - Přibylová, Petra - Gong, Xiangyi - Pockalny, Robert - Yanishevsky, Tatyana - Wagner, Charlotte C. - Sunderland, Elsie M.
PY - 2021
TI - Trends of Diverse POPs in Air and Water Across the Western Atlantic Ocean: Strong Gradients in the Ocean but Not in the Air
JF - Environmental Science & Technology
VL - 55
IS - 14
SP - 9498-9507
EP - 9498-9507
PB - American Chemical Society
SN - 0013936X
KW - POLYCYCLIC AROMATIC-HYDROCARBONS
KW - HISTORICAL EMISSION INVENTORY
KW - PERSISTENT ORGANIC POLLUTANTS
KW - NORTH-ATLANTIC
KW - ORGANOCHLORINE PESTICIDES
KW - GLOBAL DISTRIBUTION
KW - PHYSICOCHEMICAL PROPERTIES
KW - POLYCHLORINATED-BIPHENYLS
KW - SOUTHERN-OCEAN
KW - PCB CONGENERS
UR - https://pubs.acs.org/doi/10.1021/acs.est.0c04611
N2 - Oceans have remained the least well-researched reservoirs of persistent organic pollutants (POPs) globally, due to their vast scale, difficulty of access, and challenging (trace) analysis. Little data on POPs exists along South America and the effect of different currents and river plumes on aqueous concentrations. Research cruise KN210-04 (R/V Knorr) offered a unique opportunity to determine POP gradients in air, water, and their air–water exchange along South America, covering both hemispheres. Compounds of interest included polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), polybrominated diphenylethers (PBDEs), and polycyclic aromatic hydrocarbons (PAHs). Remote tropical Atlantic Ocean atmospheric concentrations varied little between both hemispheres; for HCB, BDEs 47 and 99, they were ∼5 pg/m3, PCBs were ∼1 pg/m3, α-HCH was ∼0.2 pg/m3, and phenanthrene and other PAHs were in the low 100s pg/m3. Aqueous concentrations were dominated by PCB 52 (mean 4.1 pg/L), HCB (1.6 pg/L), and β-HCH (1.9 pg/L), with other compounds <1 pg/L. Target PCBs tended to undergo net volatilization from the surface ocean, while gradients indicated net deposition for a-HCH. In contrast to atmospheric concentrations, which were basically unchanged between hemispheres, we detected strong gradients in aqueous POPs, with mostly nondetects in the tropical western South Atlantic. These results highlight the importance of currents and loss processes on ocean scales for the distribution of POPs.
ER -
LOHMANN, Rainer, Erin MARKHAM, Jana KLÁNOVÁ, Petr KUKUČKA, Petra PŘIBYLOVÁ, Xiangyi GONG, Robert POCKALNY, Tatyana YANISHEVSKY, Charlotte C. WAGNER and Elsie M. SUNDERLAND. Trends of Diverse POPs in Air and Water Across the Western Atlantic Ocean: Strong Gradients in the Ocean but Not in the Air. \textit{Environmental Science \&{} Technology}. WASHINGTON: American Chemical Society, 2021, vol.~55, No~14, p.~9498-9507. ISSN~0013-936X. Available from: https://dx.doi.org/10.1021/acs.est.0c04611.
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