Evidence of the return of past pollution in the ocean: A model study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F13%3A00071057" target="_blank" >RIV/00216224:14310/13:00071057 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1002/grl.50248" target="_blank" >http://dx.doi.org/10.1002/grl.50248</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/grl.50248" target="_blank" >10.1002/grl.50248</a>

Result language

angličtina

Original language name

Evidence of the return of past pollution in the ocean: A model study

Original language description

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.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DG - Atmospheric sciences, meteorology

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Geophysical Research Letters

ISSN

0094-8276

e-ISSN

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Volume of the periodical

40

Issue of the periodical within the volume

7

Country of publishing house

US - UNITED STATES

Number of pages

6

Pages from-to

1373-1378

UT code for WoS article

000319217600022

EID of the result in the Scopus database

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