PMID- 28355053
OWN - NLM
STAT- MEDLINE
DCOM- 20170608
LR  - 20181107
IS  - 1520-5851 (Electronic)
IS  - 0013-936X (Linking)
VI  - 51
IP  - 8
DP  - 2017 Apr 18
TI  - Experimental Study on the Role of Sedimentation and Degradation Processes on 
      Atmospheric Deposition of Persistent Organic Pollutants in a Subtropical Water 
      Column.
PG  - 4424-4433
LID - 10.1021/acs.est.7b00568 [doi]
AB  - The goal of this study is to experimentally assess the role of vertical sinking 
      and degradation processes of persistent organic pollutants (POPs) in a 
      subtropical water column. This was done by measuring the concentrations of 
      selected typical organochlorine pesticides, including hexachlorocyclohexanes 
      (HCHs), hexachlorobenzene (HCB), dichlorodiphenyltrichloroethanes (DDTs), 
      trans-chlordane (TC), and cis-chlordane (CC), in atmosphere (gas phase), water 
      (dissolved and particulate phases), and sedimentation samples simultaneously from 
      October 2011 to April 2013 in a subtropical lake. The fugacity ratios suggested 
      net deposition for alpha-HCH, gamma-HCH, p,p'-DDT, p,p'-DDD, p,p'-DDE, o,p'-DDT, TC, and 
      CC, indicating that the subtropical lake was acting as a "sink" for these 
      chemicals. The enantiomer fractions of alpha-HCH, o,p'-DDT, TC, and CC in the 
      dissolved phase samples were much more deviated from the racemic values than were 
      those in the air samples, suggesting that these chemicals have suffered microbial 
      degradation in the subtropical lake. In fact, 99% to 100% of atmospheric input of 
      alpha-HCH and gamma-HCH to the subtropical lake was estimated to be depleted via 
      microbial degradation, while the role of hydrolysis and vertical sinking was very 
      small. For more hydrophobic p,p'-DDT, o,p'-DDT, TC, and CC, the role of vertical 
      sinking was 2 to 3 orders of magnitude larger than that for alpha-HCH and gamma-HCH. 
      Microbial degradation was also very important for removing p,p'-DDT, o,p'-DDT, 
      TC, and CC from the water column.
FAU - Huang, Yumei
AU  - Huang Y
AD  - State Key Laboratory of Organic Geochemistry, Guangzhou Institute of 
      Geochemistry, Chinese Academy of Sciences , Guangzhou 510640, China.
AD  - School of Environmental Science and Engineering, Guangzhou University , Guangzhou 
      510006, China.
FAU - Zhang, Ruijie
AU  - Zhang R
AUID- ORCID: 0000-0002-0246-2204
AD  - Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, School of 
      Marine Sciences, Guangxi University , Nanning 530004, China.
FAU - Li, Kechang
AU  - Li K
AD  - State Key Laboratory of Organic Geochemistry, Guangzhou Institute of 
      Geochemistry, Chinese Academy of Sciences , Guangzhou 510640, China.
FAU - Cheng, Zhineng
AU  - Cheng Z
AD  - State Key Laboratory of Organic Geochemistry, Guangzhou Institute of 
      Geochemistry, Chinese Academy of Sciences , Guangzhou 510640, China.
FAU - Zhong, Guangcai
AU  - Zhong G
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.
FAU - Li, Jun
AU  - Li J
AUID- ORCID: 0000-0002-3637-1642
AD  - State Key Laboratory of Organic Geochemistry, Guangzhou Institute of 
      Geochemistry, Chinese Academy of Sciences , Guangzhou 510640, China.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20170407
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Hydrocarbons, Chlorinated)
RN  - 0 (Pesticides)
RN  - 059QF0KO0R (Water)
RN  - 12789-03-6 (Chlordan)
SB  - IM
MH  - Chlordan
MH  - *Environmental Monitoring
MH  - Hydrocarbons, Chlorinated
MH  - Pesticides
MH  - *Water
EDAT- 2017/03/30 06:00
MHDA- 2017/06/09 06:00
CRDT- 2017/03/30 06:00
PHST- 2017/03/30 06:00 [pubmed]
PHST- 2017/06/09 06:00 [medline]
PHST- 2017/03/30 06:00 [entrez]
AID - 10.1021/acs.est.7b00568 [doi]
PST - ppublish
SO  - Environ Sci Technol. 2017 Apr 18;51(8):4424-4433. doi: 10.1021/acs.est.7b00568. 
      Epub 2017 Apr 7.