In order to study the impact of climate change on metal contaminant transport in urban waters and its relevance for water quality, we have analyzed variations in metal- and suspended sediment concentrations (SSC) in three urban rivers and one small creek in the Gothenburg region during various hydrological events such as spring flood, dry period, and wet period. To interpret river loads of metals and SSC we have furthermore followed meteorological trends since 1961 and additionally calculated future trends for the Gothenburg region, located on the west coast of Sweden. During periods of a short-term increase in precipitation we found an increased particle bound metal transport in urban watercourses of the Göta Älv River. In addition, a correlation between studied parameters indicates that surface runoff from brownfields most likely is the main source to the increased transport of pollutants in river systems rather than re-suspension of polluted river sediment.

中文翻译：

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气候变化对城市水域金属和悬浮沉积物浓度的影响

为了研究气候变化对城市水域金属污染物迁移的影响及其与水质的相关性，我们分析了哥德堡地区三条城市河流和一条小溪中金属和悬浮泥沙浓度 (SSC) 的变化。春汛、枯水期、丰水期等各种水文事件。为了解释河流中的金属和 SSC 负荷，我们进一步跟踪了自 1961 年以来的气象趋势，并额外计算了位于瑞典西海岸的哥德堡地区的未来趋势。在降水的短期增加期间，我们发现 Göta Älv 河的城市水道中颗粒束缚金属运输增加。此外，