PMID- 37058936
OWN - NLM
STAT- MEDLINE
DCOM- 20230502
LR  - 20230502
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 453
DP  - 2023 Jul 5
TI  - Foliar uptake of persistent organic pollutants at alpine treeline.
PG  - 131388
LID - S0304-3894(23)00671-4 [pii]
LID - 10.1016/j.jhazmat.2023.131388 [doi]
AB  - Previous studies highlighted the role of temperature on the foliar uptake of 
      persistent organic pollutants (POPs) based on their physicochemical properties. 
      However, few studies have focused on the indirect impacts of low temperature on 
      the foliar uptake of POPs due to the changed physiology of leaves. We measured 
      the concentrations and temporal variations of foliar POPs at the treeline on the 
      Tibetan Plateau, the highest-altitudinal treeline on Earth. The leaves at the 
      treeline showed high uptake efficiencies and reservoir capacity of 
      dichlorodiphenyltrichloroethanes (DDTs), which were two times to one order of 
      magnitude higher than those in forests worldwide. Enhanced surface adsorption due 
      to the increased thickness of the wax layer in a colder climate was found to be 
      the primary contributor (>60 %) to the high uptake of DDTs at the treeline, and 
      slow penetration controlled by temperature contributed 13 %-40 %. The relative 
      humidity, related negatively to temperature, also influenced the uptake rates of 
      DDTs by foliage at the treeline (contribution: <10 %). The uptake rates of small 
      molecular-weight POPs (hexachlorobenzene and hexachlorocyclohexanes) by foliage 
      at the treeline were quite lower than those of DDTs, relating probably with the 
      weak penetration of these compounds into leaves and/or low-temperature-induced 
      precipitation washout from leaf surface.
CI  - Copyright (c) 2023 Elsevier B.V. All rights reserved.
FAU - Gong, Ping
AU  - Gong P
AD  - State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment 
      (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, 
      Beijing 100101, China.
FAU - Wang, Xiaoping
AU  - Wang X
AD  - State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment 
      (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, 
      Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, 
      China. Electronic address: wangxp@itpcas.ac.cn.
FAU - Xue, Yonggang
AU  - Xue Y
AD  - Key Laboratory of Aerosol Chemistry and Physics, State Key Laboratory of Loess 
      and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy 
      of Sciences, Xi'an 710061, China.
FAU - Zhang, Lin
AU  - Zhang L
AD  - State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment 
      (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, 
      Beijing 100101, China.
FAU - Wang, Yongjie
AU  - Wang Y
AD  - State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment 
      (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, 
      Beijing 100101, China; South-East Tibetan Plateau Station for Integrated 
      Observation and Research of Alpine Environment, Chinese Academy of Sciences, 
      Nyingchi 860000, China.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20230407
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Pesticides)
RN  - 0 (Persistent Organic Pollutants)
RN  - 59NEE7PCAB (Hexachlorocyclohexane)
RN  - 4Z87H0LKUY (Hexachlorobenzene)
RN  - 0 (Environmental Pollutants)
SB  - IM
MH  - *Pesticides/analysis
MH  - Persistent Organic Pollutants
MH  - Hexachlorocyclohexane
MH  - Hexachlorobenzene
MH  - Forests
MH  - *Environmental Pollutants
MH  - Environmental Monitoring
OTO - NOTNLM
OT  - Forest filter effect
OT  - Low temperature
OT  - Organochlorine pesticides
OT  - Penetration
OT  - Surface adsorption
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2023/04/15 06:00
MHDA- 2023/05/02 06:42
CRDT- 2023/04/14 18:06
PHST- 2023/02/27 00:00 [received]
PHST- 2023/03/31 00:00 [revised]
PHST- 2023/04/06 00:00 [accepted]
PHST- 2023/05/02 06:42 [medline]
PHST- 2023/04/15 06:00 [pubmed]
PHST- 2023/04/14 18:06 [entrez]
AID - S0304-3894(23)00671-4 [pii]
AID - 10.1016/j.jhazmat.2023.131388 [doi]
PST - ppublish
SO  - J Hazard Mater. 2023 Jul 5;453:131388. doi: 10.1016/j.jhazmat.2023.131388. Epub 
      2023 Apr 7.