J 2015

Elevated Mobility of Persistent Organic Pollutants in the Soil of a Tropical Rainforest

ZHENG, Qian, Luca NIZZETTO, Xiang LIU, Katrine BORGA, Jostein STARRFELT et. al.

Basic information

Original name

Elevated Mobility of Persistent Organic Pollutants in the Soil of a Tropical Rainforest

Authors

ZHENG, Qian (156 China), Luca NIZZETTO (380 Italy, guarantor, belonging to the institution), Xiang LIU (156 China), Katrine BORGA (578 Norway), Jostein STARRFELT (578 Norway), Jun LI (156 China), Yishan JIANG (156 China), Xin LIU (156 China), Kevin C. JONES (826 United Kingdom of Great Britain and Northern Ireland) and Gan ZHANG (156 China)

Edition

Environmental Science and Technology, WASHINGTON, DC (USA), American Chemical Society, 2015, 0013-936X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.393

RIV identification code

RIV/00216224:14310/15:00086714

Organization unit

Faculty of Science

UT WoS

000352659000036

Keywords in English

POLYCHLORINATED-BIPHENYLS; ORGANOCHLORINE PESTICIDES; LAKE-SUPERIOR; FATE; CARBON; CHINA; PCBS; EXCHANGE; DECOMPOSITION; BOREAL

Tags

Tags

Reviewed
Změněno: 15/3/2016 12:34, Mgr. Michaela Hylsová, Ph.D.

Abstract

V originále

Semivolatile persistent organic pollutants. (POP) are bioaccumulative and toxic contaminants. Their global distribution depends on source distribution, atmospheric transport, degradation, and the exchange with ocean and land surfaces. Forests are crucial terrestrial reservoirs due to the comthonly envisaged high capacity of their surface soils to store and immobilize airborne contaminants bound to organic matter. Our results, show that POPs can be unexpectedly mobile in the soil of a tropical rainforest due to fast litter turnover (leading to rapid POP transfer lb the subsoil) and leaching rates exceeding degradation rates especially for more hydrophobic congeners. Co-transport in association with leaching fine particulate and dissolved organic matter appears as a relevant driver of this PCB export. A markedly different distribution pattern is displayed in this soil in comparison to soils of colder environments with lower overall storage capacity. These findings show that biogeochemistry of organic matter degradation and: weathering can influence POP soil fate. Because tropical forests represent, 60% of the global terrestrial highlighted dynamics might have anjrnplication for the general distribution of these contaminants.