PMID- 29742474
OWN - NLM
STAT- MEDLINE
DCOM- 20190206
LR  - 20190215
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 637-638
DP  - 2018 Oct 1
TI  - Environmental behaviour of polychlorinated biphenyls in a paddy field: Impact 
      factors and canopy effects.
PG  - 50-57
LID - S0048-9697(18)31468-2 [pii]
LID - 10.1016/j.scitotenv.2018.04.319 [doi]
AB  - Paddy fields play an important role in the transport of persistent organic 
      pollutants (POPs) due to the filter effects of canopy and their wide 
      distribution. Thus, most studies have been focusing on the filter effects of 
      canopy for POPs. However, shielding effects of canopy might also influence 
      transport and portion of POPs between top and bottom. To investigate these two 
      important processes, our study involved 30 polychlorinated biphenyls (PCBs) in a 
      paddy field. Samples of bulk depositions, surface water, and air were taken to 
      investigate the occurrence and the behaviour of PCBs. We found that rice canopy 
      has potentially crucial effects on the transport of PCBs. The results showed 
      slightly higher abundances for most of high‑chlorine PCBs (81.0%) at the top of 
      the canopy, indicating that the high‑chlorine PCBs were intercepted by the rice 
      leaves. Moreover, our study showed that the PCBs in surface water and soil tended 
      to escape into air according to air, water, and soil fugacity. And we found 
      higher atmospheric PCB levels (103 pg m(-3)) at the bottom of the canopy than top 
      (88.9 pg m(-3)), indicating canopy shielding effects on escaped PCBs. In 
      addition, the study showed that the PCBs intercepted by the rice canopy may occur 
      in surface water and soil due to air movement and precipitation. These results 
      suggest that paddy fields can enrich POPs, and effects of the environmental 
      factors on POPs transport need to be investigated further.
CI  - Published by Elsevier B.V.
FAU - Li, Qilu
AU  - Li Q
AD  - School of Environment, Henan Normal University, Key Laboratory for Yellow River 
      and Huai River Water Environment and Pollution Control, Ministry of Education, 
      Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, 
      PR China; State Key Laboratory of Organic Geochemistry, Guangzhou Institute of 
      Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
FAU - Yang, Kong
AU  - Yang K
AD  - School of Environment, Henan Normal University, Key Laboratory for Yellow River 
      and Huai River Water Environment and Pollution Control, Ministry of Education, 
      Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, 
      PR China.
FAU - Wang, Yan
AU  - Wang Y
AD  - Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School 
      of Environmental Science and Technology, Dalian University of Technology, Dalian 
      116024, China.
FAU - Jin, Biao
AU  - Jin B
AD  - State Key Laboratory of Organic Geochemistry, Guangzhou Institute of 
      Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
FAU - Luo, Chunling
AU  - Luo C
AD  - State Key Laboratory of Organic Geochemistry, Guangzhou Institute of 
      Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; College of 
      Natural Resources and Environment, South China Agricultural University, Guangzhou 
      510642, China. Electronic address: clluo@gig.ac.cn.
FAU - Li, Jun
AU  - Li J
AD  - State Key Laboratory of Organic Geochemistry, Guangzhou Institute of 
      Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
FAU - Zhang, Gan
AU  - Zhang G
AD  - State Key Laboratory of Organic Geochemistry, Guangzhou Institute of 
      Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
LA  - eng
PT  - Journal Article
DEP - 20180506
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Soil)
RN  - 0 (Soil Pollutants)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
MH  - Agriculture
MH  - Air Movements
MH  - *Environmental Monitoring
MH  - Oryza
MH  - Polychlorinated Biphenyls/*analysis
MH  - Soil
MH  - Soil Pollutants/*analysis
OTO - NOTNLM
OT  - Filter effect
OT  - Impact factor
OT  - Paddy field
OT  - Polychlorinated biphenyls
OT  - Shielding effect
EDAT- 2018/05/10 06:00
MHDA- 2019/02/07 06:00
CRDT- 2018/05/10 06:00
PHST- 2017/12/27 00:00 [received]
PHST- 2018/04/22 00:00 [revised]
PHST- 2018/04/22 00:00 [accepted]
PHST- 2018/05/10 06:00 [pubmed]
PHST- 2019/02/07 06:00 [medline]
PHST- 2018/05/10 06:00 [entrez]
AID - S0048-9697(18)31468-2 [pii]
AID - 10.1016/j.scitotenv.2018.04.319 [doi]
PST - ppublish
SO  - Sci Total Environ. 2018 Oct 1;637-638:50-57. doi: 
      10.1016/j.scitotenv.2018.04.319. Epub 2018 May 6.