DOI: 10.1016/j.marpolbul.2017.11.053
论文题名: Organochlorine pesticides in surface waters from Reloncaví Fjord and the inner sea of Chiloé (~ 39.5°S - 43°S), Chilean Patagonia
作者: Placencia J.A. ; Contreras S.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
出版年: 2018
卷: 126 起始页码: 389
结束页码: 395
语种: 英语
Scopus关键词: Ecosystems
; Insecticides
; Pesticides
; Rain
; Rivers
; Scavenging
; Snow
; Alpha endosulfan
; Coastal marine ecosystems
; Deposition mechanism
; Endosulfans
; Fjord
; Organochlorine pesticides
; Patagonia
; Scavenging process
; Surface waters
; 1,1 dichloro 2,2 bis(4 chlorophenyl)ethylene
; alpha hexachlorocyclohexane
; chlorphenotane
; endosulfan
; lindane
; organochlorine pesticide
; rain
; snow
; surface water
; concentration (composition)
; deposition
; marine pollution
; organochlorine pesticide
; pollutant source
; scavenging (chemistry)
; surface water
; water pollution
; Article
; Chile
; concentration (parameters)
; controlled study
; estuary
; glacier
; river
; sea pollution
; Chile
; Chiloe Island
; Los Lagos
; Patagonia
; Reloncavi Fjord
; Chilo
英文摘要: Surface water samples from the environmental continuum spanning rivers (Petrohue, Cochamo, Puelo), fjord (Reloncaví), and the inner sea of Chiloé in Chilean Patagonia were analyzed to estimate concentration and distribution of dissolved Organochlorine pesticides (OCPs). High concentrations of HCHs, DDTs and endosulfan found in surface waters from rivers suggest that rivers are the major source of dissolved OCPs to coastal marine ecosystems. We interpret variations in the distribution and concentration as an apparent oscillation between rain and snow-scavenging processes that might determine the type of OCPs that can be preferentially deposited on mountains, glaciers, rivers, estuaries, and finally transferred to the marine realm. Predominance of α-HCH, γ-HCH, p,p′-DDE and α-endosulfan compounds suggest that the main deposition mechanism of OCPs to the Chilean Patagonia is rain scavenging. Snow and rain can be additional sources of OCPs that must be considered for future studies in fjord systems in Chilean Patagonia. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106934
Appears in Collections: 气候减缓与适应 科学计划与规划
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作者单位: Department of Environmental Chemistry, Faculty of Sciences, Universidad Católica de la Santísima Concepción, Casilla 297, Concepción, Chile; Centro de Investigación en Biodiversidad y Ambientes Sustentables (CIBAS), Universidad Católica de la Santísima Concepción, Chile; Department of Geology and Environmental Science, University of Pittburgh, United States
Recommended Citation:
Placencia J.A.,Contreras S.. Organochlorine pesticides in surface waters from Reloncaví Fjord and the inner sea of Chiloé (~ 39.5°S - 43°S), Chilean Patagonia[J]. Marine Pollution Bulletin,2018-01-01,126