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Moss as a biomonitor for the atmospheric deposition of anthropogenic microfibres.
Science of the Total Environment ( IF 8.2 ) Pub Date : 2020-01-27 , DOI: 10.1016/j.scitotenv.2020.136973 Brett Roblin 1 , Julian Aherne 1
Science of the Total Environment ( IF 8.2 ) Pub Date : 2020-01-27 , DOI: 10.1016/j.scitotenv.2020.136973 Brett Roblin 1 , Julian Aherne 1
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Microplastics, which are plastic particles < 5 mm, have been found throughout the environment. However, few studies have focused on their transport via atmospheric deposition. Bryophytes have been used as biomonitors for the atmospheric deposition of trace elements, persistent organic pollutants and particulate matter, and may potentially be used to monitor the atmospheric deposition of microplastics or anthropogenic microfibres (mf). Hylocomium splendens was collected from three lake catchments, which are remote from anthropogenic disturbance and emissions sources. Anthropogenic mf were observed in all moss samples; the average number was 24 mf g-1 dry weight (range: 15-30 mf g-1) across the three study sites. The average length of mf was 1.02 mm (range: 0.83-1.20 mm). Plastic mf were identified using five rigorous visual criteria; 27% of the observed mf passed four criteria and 13% passed all five, suggesting at most a quarter of the mf may be plastic. Annual average atmospheric deposition of anthropogenic mf across the three lake catchments was estimated at ~47,700 mf m-2 (~12,000 plastic mf m-2), based on a moss biomass of 2 kg dry weight m-2. These preliminary findings suggest that moss may be a useful biomonitor for the atmospheric deposition of mf (and microplastics).
中文翻译：
苔藓作为人为超细纤维在大气中沉积的生物监测器。
在整个环境中都发现了微塑料，即小于5毫米的塑料颗粒。然而，很少有研究集中于它们通过大气沉积的运输。苔藓植物已被用作生物监测剂，用于大气中微量元素，持久性有机污染物和颗粒物的沉积，并且可能潜在地用于监测大气中微塑料或人为微纤维（mf）的沉积。从三个人为干扰和排放源都远的湖泊流域收集了Hylocomium splendens。在所有苔藓样品中均观察到了人为的MF。三个研究地点的平均数量为24 mf g-1干重（范围：15-30 mf g-1）。mf的平均长度为1.02mm（范围：0.83-1.20mm）。使用五个严格的视觉标准来识别塑料MF。观察到的mf中有27％通过了四个标准，而13％则通过了所有五个，这表明最多四分之一的mf可能是塑料。基于2公斤干重m-2的苔藓生物量，估计三个湖集水区人为mf的年平均大气沉积为〜47,700 mf m-2（〜12,000塑料mf m-2）。这些初步发现表明，苔藓可能是mf（和微塑料）在大气中沉积的有用生物监控器。
更新日期：2020-01-27
中文翻译：
苔藓作为人为超细纤维在大气中沉积的生物监测器。
在整个环境中都发现了微塑料，即小于5毫米的塑料颗粒。然而，很少有研究集中于它们通过大气沉积的运输。苔藓植物已被用作生物监测剂，用于大气中微量元素，持久性有机污染物和颗粒物的沉积，并且可能潜在地用于监测大气中微塑料或人为微纤维（mf）的沉积。从三个人为干扰和排放源都远的湖泊流域收集了Hylocomium splendens。在所有苔藓样品中均观察到了人为的MF。三个研究地点的平均数量为24 mf g-1干重（范围：15-30 mf g-1）。mf的平均长度为1.02mm（范围：0.83-1.20mm）。使用五个严格的视觉标准来识别塑料MF。观察到的mf中有27％通过了四个标准，而13％则通过了所有五个，这表明最多四分之一的mf可能是塑料。基于2公斤干重m-2的苔藓生物量，估计三个湖集水区人为mf的年平均大气沉积为〜47,700 mf m-2（〜12,000塑料mf m-2）。这些初步发现表明，苔藓可能是mf（和微塑料）在大气中沉积的有用生物监控器。
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