PMID- 29080540
OWN - NLM
STAT- MEDLINE
DCOM- 20180315
LR  - 20181202
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 191
DP  - 2018 Jan
TI  - Higher atmospheric levels and contribution of black carbon in soil-air 
      partitioning of organochlorines in Lesser Himalaya.
PG  - 787-798
LID - S0045-6535(17)31593-X [pii]
LID - 10.1016/j.chemosphere.2017.10.021 [doi]
AB  - Due to influence of wind patterns (monsoon and westerlies) and anthropogenic 
      activities, lower stretch of Himalaya is at direct exposure to persistent organic 
      pollutants (POPs). Current study was designed to monitor atmospheric 
      concentrations of long lived organochlorine pesticides (OCPs) and polychlorinated 
      biphenyls (PCBs) using polyurethane passive air sampling in the Lesser Himalayan 
      Region (LHR) of Pakistan. Levels of  summation operatorHCHs,  summation operatorDDTs and  summation operatorPCBs were observed in a 
      range between 3 and 210 pg m(-3), 0.75-67.1 pg m(-3) and 8.49-458 pg m(-3), 
      respectively. Though, air mass trajectories over LHR indicated long range 
      transport as atmospheric source input which was further explained by 
      Clausius-Clapeyron plots between ln P and inverse of temperature (1000/T; K) 
      where all OCPs and most of the PCBs have shown insignificant relationship 
      (r(2) = 5E-06-0.41; p-value = 0.06-0.995). However, local source emissions and 
      valley transport may also implicate based on spatial distribution and altitudinal 
      patterns. Additionally, soil-air partitioning of organochlorines was assessed 
      using octanol-air partition (K(OA)) and black carbon-air partition (K(BC)) based 
      models. Regression results indicated combined influence of both organic matter 
      (r(2) = 0.298-0.85) and black carbon (r(2) = 0.31-0.86) via absorption and 
      adsorption, respectively in soil-air partitioning of OCs in LHR. This paper sheds 
      light on the atmospheric concentrations of OCs and help in better understanding 
      of the processes involved in fate and transport of organic pollutants in 
      Himalayan region. Further investigations are required to understand the role of 
      carbon moieties in fate and transport of other groups of organic pollutants at 
      higher altitudes of Himalayan region.
CI  - Copyright (c) 2017 Elsevier Ltd. All rights reserved.
FAU - Ali, Usman
AU  - Ali U
AD  - Department of Environmental Sciences, Quaid-i-Azam University, Islamabad 45320, 
      Pakistan.
FAU - Sweetman, Andrew James
AU  - Sweetman AJ
AD  - Centre for Chemicals Management, Lancaster Environment Centre, Lancaster 
      University, Bailrigg, Lancaster LA1 4YQ, UK.
FAU - Jones, Kevin C
AU  - Jones KC
AD  - Centre for Chemicals Management, Lancaster Environment Centre, Lancaster 
      University, Bailrigg, Lancaster LA1 4YQ, UK.
FAU - Malik, Riffat Naseem
AU  - Malik RN
AD  - Department of Environmental Sciences, Quaid-i-Azam University, Islamabad 45320, 
      Pakistan. Electronic address: r_n_malik@qau.edu.pk.
LA  - eng
PT  - Journal Article
DEP - 20171004
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Air Pollutants)
RN  - 0 (Hydrocarbons, Chlorinated)
RN  - 0 (Pesticides)
RN  - 0 (Soil)
RN  - 0 (Soil Pollutants)
RN  - 0 (Soot)
RN  - 7440-44-0 (Carbon)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
MH  - Adsorption
MH  - Air Pollutants/*analysis
MH  - Atmosphere/chemistry
MH  - Carbon/analysis
MH  - *Environmental Monitoring
MH  - Hydrocarbons, Chlorinated/*analysis
MH  - Pakistan
MH  - Pesticides/*analysis
MH  - Polychlorinated Biphenyls/analysis
MH  - Soil
MH  - Soil Pollutants/analysis
MH  - Soot/*analysis
OTO - NOTNLM
OT  - Atmospheric OCPs and PCBs
OT  - Black carbon
OT  - LRAT
OT  - Lesser Himalaya
OT  - Soil-air partitioning
OT  - Westerlies
EDAT- 2017/10/29 06:00
MHDA- 2018/03/16 06:00
CRDT- 2017/10/29 06:00
PHST- 2017/08/27 00:00 [received]
PHST- 2017/10/01 00:00 [revised]
PHST- 2017/10/03 00:00 [accepted]
PHST- 2017/10/29 06:00 [pubmed]
PHST- 2018/03/16 06:00 [medline]
PHST- 2017/10/29 06:00 [entrez]
AID - S0045-6535(17)31593-X [pii]
AID - 10.1016/j.chemosphere.2017.10.021 [doi]
PST - ppublish
SO  - Chemosphere. 2018 Jan;191:787-798. doi: 10.1016/j.chemosphere.2017.10.021. Epub 
      2017 Oct 4.