模拟到挪威沿海和内陆水域的跨境塑料通道
Prithvinath Madduri1, Anna Oleynik1, James R Clark2
1Department of Mathematics, University of Bergen, Allégaten 41, 5008 Bergen, Norway.
The Science of the total environment
|October 9, 2025
概括
海洋塑料垃圾 (MPD) 跨越国界,影响挪威. 我们的研究追踪了挪威西部的塑料来源,揭示了北海河流的重要贡献,其中一些进入峡湾.
科学领域:
- 环境科学 环境科学
- 海洋学 海洋学 海洋学
- 污染研究 污染研究
背景情况:
- 海洋塑料垃圾 (MPD) 构成了跨境污染挑战,具有远程运输的潜力.
- 挪威的广泛海岸线和挪威沿海电流 (NCC) 使它容易受到来自其他国家的MPD的影响.
- 沿海峡湾可以作为自然积聚区,以供潮流运输的海洋垃圾.
研究的目的:
- 调查到达挪威西部的跨境海洋塑料垃圾的起源.
- 量化塑料流入挪威专属经济区 (EEZ) 和其峡湾的数量.
- 确定主要的贡献河流,了解塑料运输机制.
主要方法:
- 采用嵌套建模方法,使用拉格朗的粒子跟踪模型.
- 利用三个嵌套的海洋模型 (4公里,800米,160米分辨率) 来模拟电流.
- 从欧洲主要河流追踪浮性塑料排放到挪威的经济特区和峡湾.
主要成果:
- 15%-88%的释放的塑料质量从北海国家进入挪威的经济特区.
- 1%-35%的塑料进入了沿西海岸的峡湾.
- 五个主要河流被确定为重要的贡献者,导致峡湾的高度.
结论:
- 跨境MPD是挪威西部的一个重要问题,特别影响其峡湾.
- 该研究强调了近距离和远距离运输过程的重要性.
- 调查结果为国际污染政策和清理举措提供了关键的见解.
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