J 2014

Accumulation Kinetics and Equilibrium Partitioning Coefficients for Semivolatile Organic Pollutants in Forest Litter

NIZZETTO, Luca, Xiang LIU, Gan ZHANG, Klára KOMPRDOVÁ, Jiří KOMPRDA et. al.

Základní údaje

Originální název

Accumulation Kinetics and Equilibrium Partitioning Coefficients for Semivolatile Organic Pollutants in Forest Litter

Autoři

NIZZETTO, Luca (380 Itálie, garant, domácí), Xiang LIU (156 Čína), Gan ZHANG (156 Čína), Klára KOMPRDOVÁ (203 Česká republika, domácí) a Jiří KOMPRDA (203 Česká republika, domácí)

Vydání

ENVIRONMENTAL SCIENCE & TECHNOLOGY, WASHINGTON, AMER CHEMICAL SOC, 2014, 0013-936X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10511 Environmental sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 5.330

Kód RIV

RIV/00216224:14310/14:00079298

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000329548800056

Klíčová slova anglicky

POLYBROMINATED DIPHENYL ETHERS; POLYCHLORINATED-BIPHENYLS; PLANT-LEAVES; ORGANOCHLORINE COMPOUNDS; CHEMICAL VAPORS; AIR; PCBS; FATE; BIOCONCENTRATION; SOILS

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 13. 3. 2015 13:13, Ing. Filip Vaculovič

Anotace

V originále

Soils are important stores of environmentally cycling semivolatile organic contaminants (SVOCs) and represent relevant atmospheric secondary sources whenever environmental conditions favor re-emission. The exchange between air and soil is controlled by resistances posed by interfacial matrices such as the ubiquitously distributed vegetation litter. For the first lime, this study focused on the experimental characterization of accumulation parameters for SVOCs in litter under real field conditions. The logarithm of the litter-air equilibrium partitioning coefficient ranged 6.8-8.9 and had a similar dependence on logK(OA) as that of plant foliage and soil data. Uptake and release rates were also K-OA dependent with values (relevant for real environmental conditions) ranging 30,000-150,000 d(-1) and 0.0004-0.0134 d(-1), respectively. The overall mass transfer coefficient v controlling litter-air exchange (0.03-1.4 cm s(-1)) was consistent with previously reported data of v for foliage in forest canopies after normalization on leaf area index. Obtained data suggest that litter holds the potential for influencing atmospheric fugacity in proximity to soil, likely affecting overall exchange of SVOCs between the soil reservoir and the atmosphere.