Occurrence and air-water diffusive exchange legacy persistent
organic pollutants in an oligotrophic north Patagonian lake

J 2022

Occurrence and air-water diffusive exchange legacy persistent organic pollutants in an oligotrophic north Patagonian lake

LUARTE, Thais, Felipe TUCCA, Jorge NIMPTSCH, Stefan WOELFL, Gemma CASAS et. al.

Basic information

Original name

Occurrence and air-water diffusive exchange legacy persistent organic pollutants in an oligotrophic north Patagonian lake

Authors

LUARTE, Thais (152 Chile), Felipe TUCCA (152 Chile), Jorge NIMPTSCH (152 Chile), Stefan WOELFL (152 Chile), Gemma CASAS (724 Spain), Jordi DACHS (724 Spain), Gustavo CHIANG (152 Chile), Karla Andrea POZO (380 Italy, guarantor, belonging to the institution), Ricardo BARRA (152 Chile) and Cristobal GALBAN-MALAGON (152 Chile)

Edition

Environmental Research, SAN DIEGO, ACADEMIC PRESS INC ELSEVIER SCIENCE, 2022, 0013-9351

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30304 Public and environmental health

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 8.300

RIV identification code

RIV/00216224:14310/22:00125074

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1016/j.envres.2021.112042

UT WoS

000704705800001

Keywords in English

North patagonian lakes; Air-water exchange; Legacy pollutants; Pesticides; South America

Abstract

V originále

In this study, the occurrence and diffusive air-water exchange of POPs in Panguipulli Lake (39 degrees 42' S-72 degrees 13' W), an oligotrophic lake located in northern Patagonia (Chile), were determined. Air and water samples were collected between March and August 2017 (autumn-winter) and analyzed for concentrations of OCPs (alpha-HCH, beta-HCH, gamma-HCH and HCB) and PCBs (PCB-28,-52,-101,-118,-153,-158,-180) using gas chromatography coupled with an electron capture detector. The direction of air-water exchange direction was evaluated using a fugacity approach (f(w) f(a)(-1)), and net diffusive exchange fluxes (F-AW, ng m(-2) d(-1)) were also estimated. Total Sigma 4OCP levels in air ranged from 0.31 to 37 pg m(-3), with a maximum for beta-HCH, while Sigma 7PCB levels ranged from 3.05 to 43 pg m(-3). The most abundant congener was PCB-153, accounting for 60% of the total PCBs in air. Surface water Sigma(4)OCPs measured in this study ranged from 1.01 to 3.9 pg L-1, with gamma-HCH predominating, while surface water Sigma 7PCB levels ranged from 0.32 to 24 pg L-1, with PCB-101, PCB-118, and PCB-153 presenting the highest levels. Diffusive air-water exchanges of HCB, alpha-HCH, gamma-HCH and PCBs in the form of volatilization from the lake to air predominated; in contrast, for beta-HCH net deposition dominated during the sampling period. Estimates suggested faster microbial degradation in the dissolved phase compared to atmospheric degradation for all analyzed POPs. Overall, these results could indicate that the oligotrophic lakes of northern Patagonia act as a secondary source of atmospheric POPs, mainly PCBs and some OCPs. This study is a first attempt to understand the occurrence of POPs in air and water, as well as their dynamics in oligotrophic lakes in the southern hemisphere.

Citovat

LUARTE, Thais, Felipe TUCCA, Jorge NIMPTSCH, Stefan WOELFL, Gemma CASAS, Jordi DACHS, Gustavo CHIANG, Karla Andrea POZO, Ricardo BARRA and Cristobal GALBAN-MALAGON. Occurrence and air-water diffusive exchange legacy persistent organic pollutants in an oligotrophic north Patagonian lake. Environmental Research. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE, 2022, vol. 204, March 2022, p. 1-9. ISSN 0013-9351. Available from: https://dx.doi.org/10.1016/j.envres.2021.112042.

@article{1806680,
   author = {Luarte, Thais and Tucca, Felipe and Nimptsch, Jorge and Woelfl, Stefan and Casas, Gemma and Dachs, Jordi and Chiang, Gustavo and Pozo, Karla Andrea and Barra, Ricardo and GalbanandMalagon, Cristobal},
   article_location = {SAN DIEGO},
   article_number = {March 2022},
   doi = {http://dx.doi.org/10.1016/j.envres.2021.112042},
   keywords = {North patagonian lakes; Air-water exchange; Legacy pollutants; Pesticides; South America},
   language = {eng},
   issn = {0013-9351},
   journal = {Environmental Research},
   title = {Occurrence and air-water diffusive exchange legacy persistent organic pollutants in an oligotrophic north Patagonian lake},
   url = {https://www.sciencedirect.com/science/article/pii/S0013935121013372?via%3Dihub},
   volume = {204},
   year = {2022}
}

TY  - JOUR
ID  - 1806680
AU  - Luarte, Thais - Tucca, Felipe - Nimptsch, Jorge - Woelfl, Stefan - Casas, Gemma - Dachs, Jordi - Chiang, Gustavo - Pozo, Karla Andrea - Barra, Ricardo - Galban-Malagon, Cristobal
PY  - 2022
TI  - Occurrence and air-water diffusive exchange legacy persistent organic pollutants in an oligotrophic north Patagonian lake
JF  - Environmental Research
VL  - 204
IS  - March 2022
SP  - 1-9
EP  - 1-9
PB  - ACADEMIC PRESS INC ELSEVIER SCIENCE
SN  - 00139351
KW  - North patagonian lakes
KW  - Air-water exchange
KW  - Legacy pollutants
KW  - Pesticides
KW  - South America
UR  - https://www.sciencedirect.com/science/article/pii/S0013935121013372?via%3Dihub
N2  - In this study, the occurrence and diffusive air-water exchange of POPs in Panguipulli Lake (39 degrees 42' S-72 degrees 13' W), an oligotrophic lake located in northern Patagonia (Chile), were determined. Air and water samples were collected between March and August 2017 (autumn-winter) and analyzed for concentrations of OCPs (alpha-HCH, beta-HCH, gamma-HCH and HCB) and PCBs (PCB-28,-52,-101,-118,-153,-158,-180) using gas chromatography coupled with an electron capture detector. The direction of air-water exchange direction was evaluated using a fugacity approach (f(w) f(a)(-1)), and net diffusive exchange fluxes (F-AW, ng m(-2) d(-1)) were also estimated. Total Sigma 4OCP levels in air ranged from 0.31 to 37 pg m(-3), with a maximum for beta-HCH, while Sigma 7PCB levels ranged from 3.05 to 43 pg m(-3). The most abundant congener was PCB-153, accounting for 60% of the total PCBs in air. Surface water Sigma(4)OCPs measured in this study ranged from 1.01 to 3.9 pg L-1, with gamma-HCH predominating, while surface water Sigma 7PCB levels ranged from 0.32 to 24 pg L-1, with PCB-101, PCB-118, and PCB-153 presenting the highest levels. Diffusive air-water exchanges of HCB, alpha-HCH, gamma-HCH and PCBs in the form of volatilization from the lake to air predominated; in contrast, for beta-HCH net deposition dominated during the sampling period. Estimates suggested faster microbial degradation in the dissolved phase compared to atmospheric degradation for all analyzed POPs. Overall, these results could indicate that the oligotrophic lakes of northern Patagonia act as a secondary source of atmospheric POPs, mainly PCBs and some OCPs. This study is a first attempt to understand the occurrence of POPs in air and water, as well as their dynamics in oligotrophic lakes in the southern hemisphere.
ER  -

LUARTE, Thais, Felipe TUCCA, Jorge NIMPTSCH, Stefan WOELFL, Gemma CASAS, Jordi DACHS, Gustavo CHIANG, Karla Andrea POZO, Ricardo BARRA and Cristobal GALBAN-MALAGON. Occurrence and air-water diffusive exchange legacy persistent organic pollutants in an oligotrophic north Patagonian lake. \textit{Environmental Research}. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE, 2022, vol.~204, March 2022, p.~1-9. ISSN~0013-9351. Available from: https://dx.doi.org/10.1016/j.envres.2021.112042.

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