Research on the non-point source pollution of microplastics

Abstract

Microplastics are characterized with universality, persistence and toxicity to aquatic organisms, the pollution of microplastics has attracted worldwide attention. At present, studies on microplastic pollution were mainly focused on the composition, abundance and species of microplastics in water bodies and sediments, and few studies were focused on the source and influence characteristics of microplastics in surface water bodies. Starting from the sources of microplastic pollution in surface water of this paper, the pollution status of agricultural microplastics was analyzed, and the importance and urgency of studying microplastic pollution in agricultural non-point sources were put forward. Therefore, it was intended to provide effective scientific basis and technical support for the control of microplastics non-point source pollution in river basins.

A Comprehensive Analysis of Agricultural Non-Point Source Pollution in China: Current Status, Risk Assessment and Management Strategies

“…Studies have shown that the accumulation of film residues can have a significant negative impact on soil quality and crop growth [59][60][61]. Microplastics are now considered to be an important environmental pollutant, almost ubiquitous in the atmosphere, water, soil and other environmental media [62,63]. Specifically, the morphology of microplastic fibers plays a critical role in their capability for long-range atmospheric transport, suggesting that they can traverse vast geographical expanses and exert impacts on the environment [64].…”

Soil Microplastic Pollution and Microbial Breeding Techniques for Green Degradation: A Review

“…The soil is seen as a significant reservoir of MP pollution, both absorbing and releasing it [ 39 ]. MPs in polluted soil environments primarily come from agricultural film residues, agricultural irrigation wastewater, organic fertilizers, sludge from wastewater treatment plants, seepage from plastic landfills, waste from plastic products, atmospheric sedimentation, random dumping, improper garbage disposal, and tire wear during car operations [ 40 , 41 , 42 ]. Figure 2 shows the main sources of MPs.…”