地衣作为监测多环芳烃大气沉降的综合工具：与土壤、空气和松针的比较。
Lichens as an integrating tool for monitoring PAH atmospheric deposition: a comparison with soil, air and pine needles.
机构信息
University of Lisbon, Faculty of Sciences, Centre for Environmental Biology (CBA), FCUL, Campo Grande, Bloco C2, Piso 5, 1749-016 Lisboa, Portugal.
出版信息
Environ Pollut. 2010 Feb;158(2):483-9. doi: 10.1016/j.envpol.2009.08.016. Epub 2009 Sep 26.
The aim of this study was to validate lichens as biomonitors of PAH atmospheric deposition; for that, an inter-comparison between the PAH profile and concentrations intercepted in lichens with those of air, soil and pine needles was performed. The study was conducted in a petro-industrial area and the results showed that PAH profiles in lichens were similar to those of the air and pine needles, but completely different from those of soils. Lichens accumulated higher PAH concentrations when compared to the other environmental compartments and its concentrations were significantly and linearly correlated with concentrations of PAHs in soil; we showed that a translation of the lichen PAHs concentrations into regulatory standards is possible, fulfilling one of the most important requirements of using lichens as biomonitors. With lichens we were then able to characterize the air PAHs profile of urban, petro-industrial and background areas.
本研究旨在验证地衣作为大气多环芳烃（PAH）沉降的生物监测指标；为此，我们对地衣中的 PAH 分布和浓度与空气、土壤和松针中的 PAH 分布和浓度进行了对比。研究在一个石油工业区进行，结果表明，地衣中的 PAH 分布与空气和松针中的 PAH 分布相似，但与土壤中的 PAH 分布完全不同。与其他环境介质相比，地衣积累了更高浓度的 PAH，其浓度与土壤中 PAHs 浓度呈显著线性相关；我们表明，将地衣中的 PAHs 浓度转化为监管标准是可行的，这满足了将地衣作为生物监测指标的最重要要求之一。然后，我们用地衣来描绘城市、石油工业区和背景区的空气中 PAHs 分布。
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