INVESTIGATION OF OCCURRENCE REGULARITY OF MICROPLASTICS IN RAINWATER RUNOFF

QIU Fuguo; LIANG Anqi; TONG Shiyu; WANG Chun

doi:10.13205/j.hjgc.202407011

Volume 42 Issue 7

Jul. 2024

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2024 > 42(7): 106-112

QIU Fuguo, LIANG Anqi, TONG Shiyu, WANG Chun. INVESTIGATION OF OCCURRENCE REGULARITY OF MICROPLASTICS IN RAINWATER RUNOFF[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(7): 106-112. doi: 10.13205/j.hjgc.202407011

Citation:

QIU Fuguo, LIANG Anqi, TONG Shiyu, WANG Chun. INVESTIGATION OF OCCURRENCE REGULARITY OF MICROPLASTICS IN RAINWATER RUNOFF[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(7): 106-112. doi: 10.13205/j.hjgc.202407011

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INVESTIGATION OF OCCURRENCE REGULARITY OF MICROPLASTICS IN RAINWATER RUNOFF

doi: 10.13205/j.hjgc.202407011

Key Laboratory of Urban Stormwater System and Water Environment of Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China

Received Date: 2023-04-07
Available Online: 2024-12-02

Abstract

Abstract

To clarify the occurrence of microplastics in rainwater runoff, the sampling points in a university campus, a road, and a residential community were selected to collect samples of actual rainwater runoff. The density separation method was used to pretreat the rainwater samples, and the abundance, type and particle size of microplastics in the water samples were detected and analyzed, using an Agilent LDIR-8700 laser infrared imaging spectrometer. The presence of microplastics was detected in all samples. The abundance of microplastics was related to the number of dry days before the rainfall event, and increased with the number of dry days. The types of microplastics were related to the social life functions of the sampling sites. The particle sizes of microplastics were divided into five intervals: 0 to 30 μm, 30 to 50 μm, 50 to 100 μm, 100 to 200 μm, and 200 μm above. The particle sizes of microplastics detected at the three sampling sites were mainly in the range of 0 to 50 μm, indicating that large-size plastics would be continuously broken to form small-size microplastics by the influence of natural external forces. The results can provide data support for the detection methods of microplastics in rainwater and the sources of microplastics in water environment.
- rainwater runoff,
- microplastics,
- university campus,
- roads,
- residential community

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References(22)

References

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