PMID- 27974151
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180314
LR  - 20180314
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 580
DP  - 2017 Feb 15
TI  - Using a passive air sampler to monitor air-soil exchange of organochlorine 
      pesticides in the pasture of the central Tibetan Plateau.
PG  - 958-965
LID - S0048-9697(16)32733-4 [pii]
LID - 10.1016/j.scitotenv.2016.12.046 [doi]
AB  - Air-soil exchange is a key process controlling the fate of persistent organic 
      pollutants (POPs). However, the "sink effect" of soil for POPs in Tibetan pasture 
      has not been clear. In NamCo, in the central Tibetan Plateau (TP) where the land 
      is covered by grass, a modified passive air sampler (PAS) (thickness: 2cm) was 
      tested. Using the PAS, the atmospheric gaseous phase organochlorine pesticides 
      (OCPs) at 11 heights from close-to-surface (2cm) to 200cm above ground, in summer 
      and in winter, were measured. Concentrations of OCPs in summer were higher than 
      those in winter. Both in summer and winter, atmospheric concentrations of OCPs 
      decreased with decreasing height from 200 to 2cm, indicating that OCPs were being 
      deposited from air to soil. Air deposition of OCPs was possibly driven by wind 
      speed. Furthermore, based on air OCPs at 0-3cm near the surface, the interface 
      exchange of OCPs between air and soil was studied by the fugacity method. The 
      results showed that pastural soil in the TP was a "sink" of OCPs even in summer. 
      The mean deposition fluxes of alpha-HCH, gamma-HCH and o,p'-DDT were 0.72, 0.24 and 
      0.54pg/h/m(2), respectively, and it was estimated that the level of these 
      pollutants in the soil will double every 24, 66 and 206years, respectively. This 
      study will contribute to the further understanding of global cycling of POPs in 
      different land covers.
CI  - Copyright (c) 2016 Elsevier B.V. All rights reserved.
FAU - Wang, Chuanfei
AU  - Wang C
AD  - Key Laboratory of Tibetan Environment Changes and Land Surface Processes, 
      Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 
      100101, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, 
      Beijing, 100101, China.
FAU - Wang, Xiaoping
AU  - Wang X
AD  - Key Laboratory of Tibetan Environment Changes and Land Surface Processes, 
      Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 
      100101, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, 
      Beijing, 100101, China. Electronic address: wangxp@itpcas.ac.cn.
FAU - Ren, Jiao
AU  - Ren J
AD  - Key Laboratory of Tibetan Environment Changes and Land Surface Processes, 
      Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 
      100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
FAU - Gong, Ping
AU  - Gong P
AD  - Key Laboratory of Tibetan Environment Changes and Land Surface Processes, 
      Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 
      100101, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, 
      Beijing, 100101, China.
FAU - Yao, Tandong
AU  - Yao T
AD  - Key Laboratory of Tibetan Environment Changes and Land Surface Processes, 
      Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 
      100101, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, 
      Beijing, 100101, China.
LA  - eng
PT  - Journal Article
DEP - 20161211
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
OTO - NOTNLM
OT  - Air-soil exchange
OT  - OCPs
OT  - Passive air sampler
OT  - Pasture
OT  - Tibetan Plateau
EDAT- 2016/12/16 06:00
MHDA- 2016/12/16 06:01
CRDT- 2016/12/16 06:00
PHST- 2016/10/26 00:00 [received]
PHST- 2016/12/06 00:00 [revised]
PHST- 2016/12/07 00:00 [accepted]
PHST- 2016/12/16 06:00 [pubmed]
PHST- 2016/12/16 06:01 [medline]
PHST- 2016/12/16 06:00 [entrez]
AID - S0048-9697(16)32733-4 [pii]
AID - 10.1016/j.scitotenv.2016.12.046 [doi]
PST - ppublish
SO  - Sci Total Environ. 2017 Feb 15;580:958-965. doi: 10.1016/j.scitotenv.2016.12.046. 
      Epub 2016 Dec 11.