PMID- 24349938
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20131218
LR  - 20211021
IS  - 2187-137X (Print)
IS  - 2186-5116 (Electronic)
IS  - 2186-5116 (Linking)
VI  - 2
IP  - Spec Iss
DP  - 2013
TI  - Chiral chemicals as tracers of atmospheric sources and fate processes in a world 
      of changing climate.
PG  - S0019
LID - 10.5702/massspectrometry.S0019 [doi]
LID - S0019
AB  - Elimination of persistent organic pollutants (POPs) under national and 
      international regulations reduces "primary" emissions, but "secondary" emissions 
      continue from residues deposited in soil, water, ice and vegetation during former 
      years of usage. In a future, secondary source controlled world, POPs will follow 
      the carbon cycle and biogeochemical processes will determine their transport, 
      accumulation and fate. Climate change is likely to affect mobilisation of POPs 
      through e.g., increased temperature, altered precipitation and wind patterns, 
      flooding, loss of ice cover in polar regions, melting glaciers, and changes in 
      soil and water microbiology which affect degradation and transformation. Chiral 
      compounds offer advantages for following transport and fate pathways because of 
      their ability to distinguish racemic (newly released or protected from microbial 
      attack) and nonracemic (microbially degraded) sources. This paper discusses the 
      rationale for this approach and suggests applications where chiral POPs could aid 
      investigation of climate-mediated exchange and degradation processes. Multiyear 
      measurements of two chiral POPs, trans-chlordane and alpha-HCH, at a Canadian Arctic 
      air monitoring station show enantiomer compositions which cycle seasonally, 
      suggesting varying source contributions which may be under climatic control. 
      Large-scale shifts in the enantioselective metabolism of chiral POPs in soil and 
      water might influence the enantiomer composition of atmospheric residues, and it 
      would be advantageous to include enantiospecific analysis in POPs monitoring 
      programs.
FAU - F Bidleman, Terry
AU  - F Bidleman T
AD  - Chemistry Department, Umea University ; Centre for Atmospheric Research 
      Experiments, Environment Canada.
FAU - M Jantunen, Liisa
AU  - M Jantunen L
AD  - Centre for Atmospheric Research Experiments, Environment Canada.
FAU - Binnur Kurt-Karakus, Perihan
AU  - Binnur Kurt-Karakus P
AD  - Faculty of Engineering, Department of Environmental Engineering, Bahcesehir 
      University.
FAU - Wong, Fiona
AU  - Wong F
AD  - Department of Applied Environmental Science (ITM), Stockholm University.
FAU - Hung, Hayley
AU  - Hung H
AD  - Science & Technology Branch, Environment Canada.
FAU - Ma, Jianmin
AU  - Ma J
AD  - Science & Technology Branch, Environment Canada.
FAU - Stern, Gary
AU  - Stern G
AD  - Freshwater Institute, Department of Fisheries & Oceans 501 University Crescent ; 
      Centre for Earth Observation Science, University of Manitoba.
FAU - Rosenberg, Bruno
AU  - Rosenberg B
AD  - Freshwater Institute, Department of Fisheries & Oceans 501 University Crescent.
LA  - eng
PT  - Journal Article
DEP - 20130415
PL  - Japan
TA  - Mass Spectrom (Tokyo)
JT  - Mass spectrometry (Tokyo, Japan)
JID - 101603453
PMC - PMC3810459
OTO - NOTNLM
OT  - air-surface exchange
OT  - atmospheric transport
OT  - chiral
OT  - climate change
OT  - persistent organic pollutants
EDAT- 2013/12/19 06:00
MHDA- 2013/12/19 06:01
PMCR- 2013/04/15
CRDT- 2013/12/19 06:00
PHST- 2012/10/30 00:00 [received]
PHST- 2013/01/12 00:00 [accepted]
PHST- 2013/12/19 06:00 [entrez]
PHST- 2013/12/19 06:00 [pubmed]
PHST- 2013/12/19 06:01 [medline]
PHST- 2013/04/15 00:00 [pmc-release]
AID - 10.5702/massspectrometry.S0019 [doi]
PST - ppublish
SO  - Mass Spectrom (Tokyo). 2013;2(Spec Iss):S0019. doi: 
      10.5702/massspectrometry.S0019. Epub 2013 Apr 15.