Parker-Jurd Florence N F, Abbott Geoffrey D, Conley Daniel C, Xavier Cijo M, Pohl Florian, Thompson Richard C
School of Biological and Marine Sciences, University of Plymouth, Drakes Circus, Plymouth PL4 8AA, UK.
School of Natural and Environmental Sciences, Drummond Building, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.
Mar Pollut Bull. 2025 May;214:117811. doi: 10.1016/j.marpolbul.2025.117811. Epub 2025 Mar 12.
Data on the fate of tyre wear particles (TWPs) within aquatic environments is limited. This study quantified TWPs entering estuaries in stormwater drainage and atmospheric fallout, and once they have reached the marine environment, within surface waters and sediments. TWPs were found at concentrations of 0.4 mg/L, 2.55 mg/m/d, 0.00063 mg/L, and 0.96 g/kg respectively. Samples were partitioned by size to examine the distribution of TWP mass. 80-90% of TWP mass entering marine systems (stormwater and atmospheric fallout) lay between 31-125 µm. Larger particles preferentially accumulated in sediments where ∼50 % of TWP mass was >250 μm, compared to surface waters where the size class 15-63 μm accounted for ∼80 %. This study provides novel data on the sizes and concentrations of TWP pollution in coastal environments. Such data are of importance in determining biological exposures. Notably, the presence of TWPs in surface waters demonstrates their potential for transport over longer distances.
关于轮胎磨损颗粒（TWPs）在水生环境中的归宿数据有限。本研究对进入河口的雨水排水和大气沉降中的TWPs进行了量化，以及它们一旦进入海洋环境后，在地表水和沉积物中的情况。分别发现TWPs的浓度为0.4毫克/升、2.55毫克/平方米/天、0.00063毫克/升和0.96克/千克。样品按尺寸进行分类，以检查TWP质量的分布。进入海洋系统（雨水和大气沉降）的TWP质量的80%-90%在31-125微米之间。较大的颗粒优先在沉积物中积累，其中约50%的TWP质量大于250微米，而在地表水中，15-63微米的尺寸类别约占80%。本研究提供了关于沿海环境中TWP污染的大小和浓度的新数据。这些数据对于确定生物暴露情况很重要。值得注意的是，地表水中TWPs的存在表明它们有可能进行长距离运输。
