气候变化领域集成服务门户(CCPortal): Preferential transport of microplastics by wind

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DOI	10.1016/j.atmosenv.2020.118038
	Preferential transport of microplastics by wind
	Bullard J.E.; Ockelford A.; O'Brien P.; McKenna Neuman C.
发表日期	2021
ISSN	13522310
卷号	245
英文摘要	Contamination of terrestrial and marine environments by plastic waste has been widely documented. Most research into the distribution of microplastics has focused on water but here we show that wind transport can be very effective in mobilising microplastic particles. A series of wind tunnel experiments using two different substrates (sand and soil), two different microplastics (microbeads and fibres) and 5 different concentrations of microplastics (ranging from 0 mg kg−1dw to 1040 mg kg−1dw) is used to demonstrate that microplastics are preferentially transported by wind compared to sand and soil. When compared to either of the untreated substrate beds (0 mg kg−1dw), the inclusion of microplastics was not found to significantly affect the wind erosion threshold for any of the concentrations or geometric forms (fibres or beads) tested. Averaged over all concentrations of microplastics and both substrate types, microplastic enrichment was lower for microbeads than fibres. The enrichment of microplastic fibres within the entrained particulate matter was one to two orders of magnitude higher for both test bed substrates, ranging from 98 to 498 for the sand and 278 to 726 for the soil. This suggests microplastic shape needs to be carefully parameterized in models of atmospheric microplastic transport. We suggest that microplastic research could benefit from previous investigations into the wind erosion of soil organic carbon. © 2020
英文关键词	Fibre; Microbead; Microplastic entrainment; Particle shape; Plastic cycle; Wind erosion
语种	英语
scopus关键词	Atmospheric movements; Erosion; Fibers; Marine pollution; Microbeads; Organic carbon; Soil testing; Soils; Substrates; Wind tunnels; Different substrates; Marine environment; Microplastic particles; Orders of magnitude; Particulate Matter; Soil organic carbon; Substrate types; Wind tunnel experiment; Microplastic; concentration (composition); experimental study; marine environment; parameterization; particulate matter; plastic waste; pollutant transport; soil erosion; spatial distribution; wind; wind erosion
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144781
作者单位	Geography and Environment, Loughborough University, LeicestershireLE11 3TU, United Kingdom; School of Environment and Technology, University of Brighton, Brighton, BN2 4GJ, United Kingdom; Trent Environmental Wind Tunnel Laboratory, School of the Environment, Trent University, 1600, West Bank Drive, Peterborough, ON K9J 0G2, Canada
推荐引用方式 GB/T 7714	Bullard J.E.,Ockelford A.,O'Brien P.,et al. Preferential transport of microplastics by wind[J],2021,245.
APA	Bullard J.E.,Ockelford A.,O'Brien P.,&McKenna Neuman C..(2021).Preferential transport of microplastics by wind.Atmospheric Environment,245.
MLA	Bullard J.E.,et al."Preferential transport of microplastics by wind".Atmospheric Environment 245(2021).