高速公路网络的特点,产生或保留轮胎磨损颗粒
Florence N F Parker-Jurd1, Geoffrey D Abbott2, Bill Guthery2
1School of Biological and Marine Sciences, University of Plymouth, Drakes Circus, Plymouth, PL4 8AA, UK. Florence.parker-jurd@plymouth.ac.uk.
概括
轮胎磨损颗粒 (TWPs) 是一种主要的微塑料污染物,通过道路排水进入水环境. 留水池和湿地显著减少TWP污染,而池显示出更大的减少效果.
科学领域:
- 环境科学 环境科学
- 水的质量 水的质量
- 污染控制 污染控制
背景情况:
- 微塑料污染是一个全球性的环境挑战.
- 轮胎磨损颗粒 (TWPs) 是微塑料污染的重要贡献者.
- 道路排水系统是TWPs到达水生生态系统的主要途径.
研究的目的:
- 评估排水资产在从英国战略道路网络 (SRN) 中保留TWP方面的有效性.
- 评估道路几何形状 (曲线与直线) 对TWP产生的影响.
- 确定保留池和湿地在缓解TWP转移到水生环境中的有效性.
主要方法:
- 从保留池和湿地采集流入,废水和沉积物的样本.
- 从曲线和直线路段的排水中TWP质量的比较.
- 使用溶解气体染色学-质谱学 (Py-GC-MS) 量化TWPs,使用西作为标记物.
主要成果:
- 在所有分析的SRN排水样本中检测到TWPs的度为2.86 ± 6 mg/L.
- 曲线路段的排水显示,与直线路段相比,TWP质量高出40%,但不显著.
- 留水池和湿地减少了TWP质量,平均为74.9%±8.2%,在留水池中观察到显著的影响.
结论:
- 排水基础设施,特别是保留池,可以有效地减少进入水生生态系统的TWP污染.
- 虽然道路曲率可能会影响TWP的产生,但它的意义需要进一步调查.
- 这些发现对于使用类似的排水资产在全球范围内管理TWP污染具有广泛的相关性.
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