| DOI: | 10.1002/grl.50248
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| 论文题名: | Evidence of the return of past pollution in the ocean: A model study |
| 作者: | Stemmler I.; Lammel G.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9180
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| EISSN: | 1944-8911
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| 出版年: | 2013
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| 卷: | 40, 期:7 | | 起始页码: | 1373
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| 结束页码: | 1378
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| 语种: | 英语
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| 英文关键词: | Persistent organic pollutants
; Pollution trends
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| Scopus关键词: | Advection - Diffusion
; Anthropogenic stressors
; Atmospheric depositions
; Chemistry transport model
; Dichlorodiphenyltrichloroethane
; Persistent organic pollutant (POP)
; Persistent organic pollutants
; Polychlorinated biphenyl (PCBs)
; Meteorological problems
; Ocean currents
; Polychlorinated biphenyls
; River pollution
; Organic pollutants
; advection-diffusion equation
; anthropogenic effect
; atmospheric deposition
; chemical pollutant
; DDT
; deep sea
; environmental stress
; marine pollution
; numerical model
; oceanic current
; organic pollutant
; paleoceanography
; PCB
; persistence
; pollutant transport
; surface water
; trend analysis
; Atlantic Ocean
; Atlantic Ocean (North)
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| 英文摘要: | Chemical contamination by persistent organic pollutants (POPs) is one of the anthropogenic stressors for the deep sea. Here we use a coupled multi-compartment chemistry-transport model to simulate long-term transports and fate of polychlorinated biphenyls (PCBs) and dichlorodiphenyltrichloroethane (DDT). We show that the pollution signal received by the surface waters through atmospheric deposition is propagating downward and that ocean currents can act as a secondary source of POPs. Besides considerable time lags with respect to the year of peak emission, we find in some areas, e.g., in the western and eastern North Atlantic temporal bimodal exposure toward the pollutants of mid-level and deep waters (200-1500 m). This is caused by vertical and horizontal transport through advection diffusion and particle sinking. We suggest that the combination of the same processes will lead to a re-rise of exposure in other sea regions in the future, including where deep-sea fisheries take place. Key Points Despite the emissions peaked only once, the pollution may well re-rise Besides emissions and trp's, it is chemistry which determines 3D distribution Pollution may propagate with ocean currents ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876904807&doi=10.1002%2fgrl.50248&partnerID=40&md5=1723fe2a62c3c5865dcdd7f2ff471b97
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6444
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Max Planck Institute for Chemistry, Mainz, Germany
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| Recommended Citation: | |
Stemmler I.,Lammel G.. Evidence of the return of past pollution in the ocean: A model study[J]. Geophysical Research Letters,2013-01-01,40(7).
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