Department of Biological and Environmental Sciences, University of Gothenburg, Carl Skottsbergsgata 22B, 413 19 Göteborg, Sweden.
Department of Bioscience - Marine Diversity and Experimental Ecology, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark.
Mar Pollut Bull. 2018 Feb;127:664-671. doi: 10.1016/j.marpolbul.2017.12.060. Epub 2017 Dec 30.
Leisure boats are responsible for elevated levels of heavy metals and PAHs in sediments in- and near marinas and natural harbours. As these compounds are released directly into the water column they also pose a threat to organisms in the pelagic environment. Passive samplers were deployed during peak and post tourist season in the water column of natural harbours, leisure boat waterways and small marinas to measure the dissolved fraction of PAHs and metal ions. Differences between seasons indicative of leisure boat activities were found as PAH composition differed between peak and post season for natural harbours and waterways, where heavier PAHs increased during peak season. During peak season, metal samplers were covered by biofouling, which likely affected the uptake. Post season metal concentrations differ between locations, with concentrations exceeding quality standards at near mainland locations where boats are maintained, compared to the sites in the archipelago.
休闲船是码头和天然港内及附近沉积物中重金属和多环芳烃含量升高的罪魁祸首。由于这些化合物直接释放到水柱中，它们也对浮游环境中的生物构成威胁。在天然港、休闲船航道和小码头的水柱中，在旅游旺季和旅游季后部署了被动采样器，以测量多环芳烃和金属离子的溶解部分。发现季节差异与休闲船活动有关，因为天然港和航道的高峰期和后季的多环芳烃组成不同，高峰期较重的多环芳烃增加。在高峰期，金属采样器被生物污垢覆盖，这可能影响了其吸收。后季金属浓度在不同地点有所不同，在靠近大陆的船只维护地点，与群岛中的地点相比，浓度超过了质量标准。
