法国城市地区的垃圾-第1部分:城市表面的组成,来源和时空变化
Lauriane Ledieu1,2, Romain Tramoy3, David Mabilais4,5
1Univ Gustave Eiffel, GERS-LEE, F-44344, Bouguenais, France. lauriane.ledieu@univ-eiffel.fr.
Environmental science and pollution research international
|October 13, 2024
概括
城市垃圾,主要来自吸烟和食物,在表面上迅速积累,绿色空间促进积累. 这项研究量化了法国城市流域管理不善的废物,揭示了显著的时空差异.
科学领域:
- 环境科学 环境科学
- 城市生态城市生态学
- 废物管理 废物管理
背景情况:
- 城市活动产生大量的废物,其中一部分管理不善,污染地表和水道.
- 目前关于城市表面垃圾密度和转移动态的现有数据是有限的,并没有很好的约束.
- 了解垃圾的来源和变化对于有效的城市环境管理至关重要.
研究的目的:
- 调查城市流域的垃圾组成,来源和时空变化.
- 量化各种城市用地区域的垃圾密度和积累率.
- 确定垃圾分布和城市表面持续存在的关键驱动因素.
主要方法:
- 在Pin Sec和Jules Verne水域 (法国南特) 定期收集垃圾和视觉计数街道垃圾 (> 1厘米).
- 分析了垃圾组成,重点关注与吸烟和食物消费有关的项目.
- 垃圾密度和积累率与土地使用,当地活动和物品流动性相关联.
主要成果:
- 收集了50.8公斤的垃圾,并计入了232,217个物品,主要是吸烟和与食物有关的物品.
- 垃圾密度差异很大 (40,000452,000件/平方公里),受土地使用和交通的影响.
- 估计垃圾累积率的中位数为7g/人/天,表明垃圾管理不善的0.6%;在绿色空间的积累率更高,垃圾在长时间的居住时间中迅速补充.
结论:
- 城市垃圾分布与土地利用模式和人类活动密切相关.
- 绿色空间作为城市垃圾的重要积聚区.
- 城市垃圾是一个充满活力的问题,在表面上出现了快速的周转和持续的存在,需要有针对性的管理策略.
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