微塑料
污染
环境科学
化学
污染物
土壤水分
生态毒理学
环境化学
生态学
生物
土壤科学
作者
Tina Škorjanc,Dinesh Shetty,Ali Trabolsi
出处
期刊:Chem
[Elsevier]
日期:2021-04-01
卷期号:7 (4): 882-918
被引量:104
标识
DOI:10.1016/j.chempr.2021.01.002
摘要
Although environmental research has recently begun to focus on the ubiquity of microplastics in terrestrial systems, there is still lack of comprehensive data which describe microplastics levels in soils and the factors influencing the distribution of this contaminant. Here, we show that microplastics contamination (3877 ± 2356 p kg1) is omnipresent in numerous soil samples collected along the Yangtze River. Subsoils (4005 ± 2472 p kg1) showed higher levels of microplastics than topsoils (3748 ± 2301 p kg1), while polyamide (32%) was the most commonly found polymer in the samples. Small microplastics particles (< 200 µm) accounted for approximately 70% of the microplastics detected in subsoils. In terms of shape, microfragments were the most common type of microplastic particle, accounting for 34% of total microplastics, followed by microfibers (30%). Furthermore, microplastics contamination was found to be positively correlated with both the population of the study area and precipitation, yet negatively correlated with the elevation of the sampling site. Our study represents the first large-scale study of microplastic contamination in riparian soils along the Yangtze River, and provides important data regarding the ecotoxicology and ecosystem effects of microplastics in terrestrial environments.
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