2014
Does an analysis of polychlorinated biphenyl (PCB) distribution in mountain soils across China reveal a latitudinal fractionation paradox?
ZHENG, Qian; Luca NIZZETTO; Marie Daniëlle MULDER; Ondřej SÁŇKA; Gerhard LAMMEL et al.Základní údaje
Originální název
Does an analysis of polychlorinated biphenyl (PCB) distribution in mountain soils across China reveal a latitudinal fractionation paradox?
Autoři
ZHENG, Qian; Luca NIZZETTO; Marie Daniëlle MULDER; Ondřej SÁŇKA; Gerhard LAMMEL; Jun LI; Haijian BING; Xin LIU; Yishan JIANG; Chunlin LUO a Gan ZHANG
Vydání
Environmental Pollution, OXFORD, OXON, ENGLAND, ELSEVIER SCI LTD, 2014, 0269-7491
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.143
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/14:00079391
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
POP; PCB; Fractionation; Cold trapping; Mountain; Soil; Latitude; Forest
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 5. 3. 2015 12:43, Ing. Filip Vaculovič
Anotace
V originále
Organic and mineral soil horizons from forests in 30 mountains across China were analysed for polychlorinated biphenyl (PCB). Soil total organic carbon (TOC) content was a key determinant of PCB distribution explaining over 90% of the differences between organic and mineral soils, and between 30% and 60% of the variance along altitudinal and regional transects. The residual variance (after normalization by TOC) was small. Tri- to tetra-CB levels were higher in the South in relation to high source density and precipitation. Heavier congeners were instead more abundant at mid/high-latitudes where the advection pattern was mainly from long range transport. This resulted in a latitudinal fractionation opposite to theoretical expectations. The study showed that exposure to sources with different characteristics, and possibly accumulation/degradation trends of different congeners in soils being out-of-phase at different latitudes, can lead to an unsteady large scale distribution scenario conflicting with the thermodynamic equilibrium perception. (C) 2014 Elsevier Ltd. All rights reserved.
Návaznosti
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