通过亚马逊的小城市河流在潮周期中出口宏观塑料
Gabriel Pompeu Rosa1, Mauricio da Silva da Costa1, Sury de Moura Monteiro1
1Laboratório de Pesquisa em Monitoramento Ambiental Marinho LAPMAR, Universidade Federal do Pará, Av. Augusto Corrêa s/n, Guamá, Belém, PA, 66075-110, Brazil.
Environmental pollution (Barking, Essex : 1987)
|November 12, 2024
概括
亚马逊城市河流中的巨型塑料污染很大,在潮周期期间观察到双向废物运输. 这些河流出口大量的塑料,突出了潮动态对河流污染的影响.
科学领域:
- 环境科学 环境科学
- 水文学的水文学
- 生态生态学 生态生态学
背景情况:
- 河流塑料污染是一个日益严重的全球问题,影响海洋生态系统.
- 了解城市河流,特别是亚马逊河流中的巨型塑料运输至关重要,但有限.
- 在热带城市环境中,潮对河流运输动态的影响尚不清楚.
研究的目的:
- 为了估计亚马逊两个潮影响的城市河流中的浮动巨型塑料流.
- 研究潮周期对宏观塑料运输动态的影响.
- 量化这些河流对宏观塑料污染的每日贡献.
主要方法:
- 从固定桥上持续12小时观察漂浮的固体废物.
- 在完整的潮周期 (高潮和低潮) 中进行监测.
- 宏观塑料物品的量化和每日大量出口的估计.
主要成果:
- 在8682个观察到的固体废物中,80%是塑料.
- 发生了双向巨型塑料的运输,在潮期间出口达到峰值 (498.6件/小时).
- 估计每天每河大约25.84公斤的巨型塑料出口.
结论:
- 潮动力学显著影响亚马逊城市河流中的巨型塑料运输.
- 亚马逊地区的城市河流是大规模塑料污染的主要出口源.
- 有效的废物管理战略必须考虑河流系统的潮影响.
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