Developing a methodology to quantify mismanaged plastic waste entering the ocean in coastal countries

Developing a methodology to quantify mismanaged plastic waste entering the ocean in coastal countries
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开发一种方法来量化沿海国家管理不善进入海洋的塑料废物

DOI:
10.1111/jiec.13349
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发表时间:
2022
影响因子:
5.9
通讯作者:
Ita-Nagy D
Ita-Nagy D
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Ita-Nagy D

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近年来,海洋塑料积累引起了国际关注。目前正在研究废物的来源、途径和环境影响,以了解废物(特别是塑料)运输到海洋过程中的复杂相互作用。河流已被确定为碎片走廊,允许运输管理不善的废物。然而,也有证据表明,废物在河流流域中积累,这表明它们也可以作为汇。因此,假设通过河流向海洋均匀和连续地运输废物可能意味着过于简单化。这项研究提出了一种方法来估计塑料释放到海洋中,考虑到每个流域的更详细的特征,包括自然属性和可能作为这种释放的障碍或助推器的人造建筑。该方法以秘鲁皮乌拉地区的案例研究为例,估计2018年到达太平洋海岸的塑料废物为4.2至13.9公斤/人/年。与现有文献相比,这些结果显示出更保守的估计。这种方法是一个有用的工具,可以很容易地应用到开发更准确的管理不善的废物消散沿着不同的隔间。
Marine plastic accumulation has gained international attention in recent years. Sources, pathways, and environmental impacts are being currently studied to understand the complex interactions during waste, especially plastic, transportation to the sea. Rivers have been identified as debris corridors allowing transportation of mismanaged waste. However, there is also evidence of waste accumulation in river basins, suggesting they can also act as sinks. Thus, assuming a uniform and continuous transportation of waste through rivers towards the ocean may signify an oversimplification. This study proposes a methodology to estimate plastic release to the ocean, considering a more detailed characterization of each river basin, including natural attributes and manmade constructions that may act as barriers or boosters for this release. The methodology is exemplified using a case study for the Region of Piura, Peru, and estimating a range of 4.2 to 13.9 kg/person/year of plastic waste reaching the Pacific coast during 2018. These results, when compared with the existing literature, demonstrate more conservative estimations. This methodology is presented as a useful tool that can be easily applied to develop more accurate mismanaged waste dissipation along different compartments.
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DOI: --
发表时间: 2017
影响因子: 5.8
作者:
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发表时间: 2022
影响因子: 9.8
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DOI: --
发表时间: 2019
影响因子: 5.5
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DOI: --
发表时间: 2019
影响因子: 9.8
作者:
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