2016
DDTs and HCHs in sediment cores from the coastal East China Sea
LIN, Tian, Luca NIZZETTO, Zhigang GUO, Yuanyuan LI, Jun LI et. al.Základní údaje
Originální název
DDTs and HCHs in sediment cores from the coastal East China Sea
Autoři
LIN, Tian (156 Čína), Luca NIZZETTO (380 Itálie, garant, domácí), Zhigang GUO (156 Čína), Yuanyuan LI (156 Čína), Jun LI (156 Čína) a Gan ZHANG (156 Čína)
Vydání
Science of the Total Environment, AMSTERDAM, Elsevier, 2016, 0048-9697
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.900
Kód RIV
RIV/00216224:14310/16:00089423
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000364247800042
Klíčová slova anglicky
HCHs and DDTs; Sedimentary record; Yangtze River; East China Sea
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 31. 1. 2017 09:24, Mgr. Michaela Hylsová, Ph.D.
Anotace
V originále
Four sediment cores were collected along the Yangtze-derived sediment transport pathway in the inner shelf of the East China Sea (ECS) for OCP analysis. The sediment records of HCHs and DDTs in estuarine environment reflected remobilization of chemicals from enhanced soil erosion associated to extreme flood events or large scale land use transformation. The sediment records in the open sea, instead, reflected long-term historical trends of OCP application in the source region. Unlike the so-called mud wedge distribution of sediment, inventories of HCHs and DDTs slightly increased from the mouth of Yangtze River alongshore toward south, suggesting the sediment deposition rate was one of factors on the exposure of chemicals within the inner shelf of the ECS. Re-suspension and transport of the Yangtze-derived sediment and consequent fractionation in grain size and TOC were also responsible for the spatial variation of inventories of catchment derived OCPs in a major repository area of the Yangtze suspended sediment. The total burdens of HCHs and DDTs in the inner shelf of the ECS were 35 tons and 110 tons, respectively. After 1983 (year of the official ban in China), those values were 13 tons and 50 tons, respectively. It appears that the Yangtze still delivers relatively high inputs of DDTs more than 30 years after the official ban. High proportions of ODD + DDE and beta-HCH suggested those OCPs mainly originated from historical usage in the catchment recent years.
Návaznosti
ED0001/01/01, projekt VaV |
| ||
LM2011028, projekt VaV |
|