Influence of temperature and precipitation on the fate of polycyclic aromatic hydrocarbons: simulation experiments on peat cores from a typical alpine peatland in Central China

Yu, Haikuo; Hu, Tianpeng; Mao, Yao; Liao, Tien-Hao; Shi, Mingming; Liu, Weijie; Li, Miao; Yu, Yue; Zhang, Yuan; Xing, Xinli; Qi, Shihua

doi:10.1007/s11356-022-24559-4

Cited by 1 publication

(2 citation statements)

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“…HD was positively correlated with BC but negatively correlated with PAHs (Table S3 ). This can be explained by the reasons are the larger HD humus represents high organic matter content, which can not only increase the adsorption of PAHs but also reduce the mobility and degradation of PAHs (Ping and Luo 2005 ; Yu et al 2023 ).…”

Section: Discussionmentioning

confidence: 99%

“…Peatlands are a good geological-historical archive for recording climate change, which can be used to reconstruct the history of regional climate change and provide a scientific basis for predicting future climate and environmental changes (Blackford 2000 ; Biester et al 2004 ; Drollinger et al 2019 ; Yu et al 2023 ). Northern peatlands hold about a third of the global reduced carbon (C) pool (Glooschenko et al 1986 ) and hence have essential roles in the global carbon cycle and the climate system (Pratte et al 2018 ).…”

Section: Introductionmentioning

confidence: 99%

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Investigation of 200 anthropogenic activities in a representative alpine peatland in the Altay Mountains, northwestern China

Luo,

Yu,

Wen

et al. 2024

Environ Sci Pollut Res

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Peatlands records can be used to reconstruct and understand the history of environmental evolution, as well as a more accurate reflection of human activities. The black carbon (BC) and polycyclic aromatic hydrocarbons (PAHs) are ideal natural archives of anthropogenic activities. To identify the information of anthropogenic activities recorded by peatlands in the middle and high latitudes of the alpine mountains in the arid and semi-arid regions of China. this study analyzed the concentrations of BC, δ13C ratios of BC, PAHs, and molecular diagnostic ratios of PHAs (including Benzo(a) anthracene (BaA), Chrysene (Chr), fluoranthene (Flt), anthracene (Ant), phenanthrene (Phe), Benzo(a) pyrene (BaP), and pyrene (Pyr) in a 30-cm peat profile from the Altay Mountain, northwestern China. Our results revealed concentrations of BC from 11.71 to 67.5 mg·g−1, and PAHs from 168.09 to 263.53 ng·g−1. The δ13CBC value ranged from − 31.37 to − 26.27‰, with an average of − 29.54‰, indicating that the BC mainly comes from biomass combustion. The ratios of BaA/(BaA + Chr), Flt/(Flt + Pyr), and Ant/(Ant + Phe) exceeded 0.35, 0.5, and 0.1, respectively, revealing that the PAHs pollutants mainly originated from the combustion of biomass and fossil fuel burning. Furthermore, based on these findings and our knowledge of social development in Altay, industrial transport and tourism have influenced the emission, transport, and deposition of BC and PAH in peatlands in the Altay mountains since the 1980s. After 1980, pollutant concentrations decreased with the implementation of environmental policies. The results not only reveal the influence of anthropogenic activities on the sedimentary characteristics of peatlands in the Altay Mountains, but also provide an important theoretical basis for the conservation of fragile mountain peatlands.

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Section: Discussionmentioning

confidence: 99%