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@ARTICLE{Li:884067,
      author       = {Li, Qianyu and Wu, Jinglu and Zhou, Jianchao and Sakiev,
                      Kadyrbek and Hofmann, Diana},
      title        = {{O}ccurrence of polycyclic aromatic hydrocarbon ({PAH}) in
                      soils around two typical lakes in the western {T}ian {S}han
                      {M}ountains ({K}yrgyzstan, {C}entral {A}sia): {L}ocal burden
                      or global distillation?},
      journal      = {Ecological indicators},
      volume       = {108},
      issn         = {1470-160X},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2020-03076},
      pages        = {1-9},
      year         = {2020},
      abstract     = {The United Nations Educational, Scientific and Cultural
                      Organization (UNESCO) world natural heritage Tian Shan
                      Mountains, situated in Central Asia, have experienced a
                      dramatic increase in polycyclic aromatic hydrocarbon (PAH)
                      contamination, not only because of increasing volumes of
                      tourism-derived traffic but also because of the atmospheric
                      transport of polluted westerly winds under global
                      distillation effect. To assess the significance of two
                      possible sources of PAHs, 16 priority PAHs were determined
                      in 39 soil samples collected in August 2013 around Lake
                      Issyk-Kul (YKR, 1,606 m) and Lake Son-Kul (SKR, 3,010 m) as
                      typical mountain lakes in the western Tian Shan Mountains.
                      Total PAH concentrations ranged from 52 ng/g dw to 9439 ng/g
                      dw. The highest PAH levels were found in the industrial and
                      urban areas of the YKR (>1000 ng/g dw); however higher
                      levels were in the agricultural and rural areas of two
                      regions (300-1000 ng/g dw), both dominated by 4-,5-ringed
                      PAHs. In contrast, the lowest PAH levels (<200 ng/g dw) were
                      mostly distributed in the pristine areas, dominated by
                      3-,4-ringed PAHs. Diagnostic ratio and Positive Matrix
                      Factorization model infer that high PAH levels were mainly
                      generated by petroleum combustion derived from local
                      burgeoning tourism traffic beside road construction,
                      indicated by simultaneously measured n-alkanes features (low
                      carbon preference index and pristane/phytane ratio close to
                      1 with high unresolved complex mixture values). On the
                      contrary, low PAH levels primarily from biomass combustion
                      with unburned petroleum processes are ascribed to exogenous
                      atmospheric transport under global distillation effect,
                      because n-alkane sources here are biogenic input without
                      petroleum contamination. An altitudinal/temperature
                      dependence of 2-,3- and 4-ringed PAHs was significant in the
                      SKR, and the soils in the SKR serve as a “sink” for PAHs
                      in global cycling.},
      cin          = {IBG-3},
      ddc          = {630},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000493902400068},
      doi          = {10.1016/j.ecolind.2019.105749},
      url          = {https://juser.fz-juelich.de/record/884067},
}