Plastic waste inputs from land into the ocean
Plastic waste inputs from land into the ocean
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DOI：
10.1126/science.1260352
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发表时间：
2015-02-13
期刊：
影响因子：
56.9
通讯作者：
Law, Kara Lavender
中科院分区：
文献类型：
--
作者：
Jambeck, Jenna R.;Geyer, Roland;Law, Kara Lavender
海洋环境中的塑料碎片被广泛记录，但从陆地上产生的垃圾进入海洋的塑料数量是未知的。通过将全球固体废物、人口密度和经济状况的数据联系起来，我们估计了进入海洋的陆基塑料废物的数量。我们计算出，2010年，192个沿海国家产生了2.75亿吨塑料垃圾，其中480万至1270万吨进入海洋。人口规模和废物管理系统的质量在很大程度上决定了哪些国家提供了最多的未捕获废物，成为海洋塑料垃圾。如果不改善废物管理基础设施，预计到2025年，可从陆地进入海洋的塑料废物的累积数量将增加一个数量级。
Plastic debris in the marine environment is widely documented, but the quantity of plastic entering the ocean from waste generated on land is unknown. By linking worldwide data on solid waste, population density, and economic status, we estimated the mass of land-based plastic waste entering the ocean. We calculate that 275 million metric tons (MT) of plastic waste was generated in 192 coastal countries in 2010, with 4.8 to 12.7 million MT entering the ocean. Population size and the quality of waste management systems largely determine which countries contribute the greatest mass of uncaptured waste available to become plastic marine debris. Without waste management infrastructure improvements, the cumulative quantity of plastic waste available to enter the ocean from land is predicted to increase by an order of magnitude by 2025.