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我国水环境中的微塑料污染状况
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Abstract:
微塑料概念最早在2004年由英国科学家在《Science》杂志上发表的关于海洋水体和沉积物中塑料碎片一文中首次提出，粒径小于5 mm的塑料碎片颗粒被定义为微塑料。微塑料作为一种新兴污染物，已成为全球共同关注的环境热点问题之一。随着塑料有机合成制品的广泛使用，全球产量增加。废弃塑料制品排放后，经过物理、化学和生物作用分裂为微小塑料块体、颗粒或纤维。这些小颗粒可存在于空气、水体或土壤中，对生物产生迫害，也可以通过生物富集，对生态系统造成更大的负面影响，时刻威胁着生态环境和人类健康。本文将从微塑料对我国水体环境污染的角度出发，分析其目前的污染状况。
The concept of microplastics was first proposed by British scientists in the paper on plastic debris in marine water and sediment published in Science magazine in 2004. Plastic debris particles with particle size less than 5 mm are defined as microplastics. As a new pollutant, microplastics have be-come one of the hot environmental issues of global concern. With the widespread use of plastic or-ganic synthetic products, the global production has increased. After the waste plastic products are discharged, they are divided into tiny plastic blocks, particles or fibers through physical, chemical and biological actions. These small particles can exist in the air, water or soil and cause toxicity to organisms. They can also cause greater negative impact on the ecosystem through bioaccumulation and constantly threaten the ecological environment and human health. This paper will analyze the current pollution situation of microplastics from the perspective of water pollution in China.
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