Gewert Berit, Ogonowski Martin, Barth Andreas, MacLeod Matthew
Stockholm University, Department of Environmental Science and Analytical Chemistry, Svante Arrhenius väg 8, 11418 Stockholm, Sweden.
Stockholm University, Department of Environmental Science and Analytical Chemistry, Svante Arrhenius väg 8, 11418 Stockholm, Sweden; Aquabiota Water Research, Löjtnantsgatan 25, SE-115 50, Sweden.
Mar Pollut Bull. 2017 Jul 15;120(1-2):292-302. doi: 10.1016/j.marpolbul.2017.04.062. Epub 2017 May 18.
We collected plastic debris in the Stockholm Archipelago using a manta trawl, and additionally along a transect in the Baltic Sea from the island of Gotland to Stockholm in a citizen science study. The samples were concentrated by filtration and organic material was digested using hydrogen peroxide. Suspected plastic material was isolated by visual sorting and 59 of these were selected to be characterized with Fourier transform infrared spectroscopy. Polypropylene and polyethylene were the most abundant plastics identified among the samples (53% and 24% respectively). We found nearly ten times higher abundance of plastics near central Stockholm than in offshore areas (4.2×10plastics km compared to 4.7×10plastics km). The abundance of plastic debris near Stockholm was similar to urban areas in California, USA, and the overall abundance in the Stockholm Archipelago was similar to plastic abundance reported in the northwestern Mediterranean Sea.
我们在斯德哥尔摩群岛使用蝠鲼拖网收集塑料碎片，此外，在一项公民科学研究中，沿着从哥特兰岛到斯德哥尔摩的波罗的海断面进行收集。样本通过过滤进行浓缩，有机物质用过氧化氢消化。疑似塑料材料通过目视分拣分离出来，其中59个被选作傅里叶变换红外光谱表征。聚丙烯和聚乙烯是样本中鉴定出的最丰富的塑料（分别为53%和24%）。我们发现斯德哥尔摩市中心附近的塑料丰度几乎比近海地区高十倍（分别为4.2×10个塑料/平方公里和4.7×10个塑料/平方公里）。斯德哥尔摩附近的塑料碎片丰度与美国加利福尼亚州的城市地区相似，斯德哥尔摩群岛的总体丰度与地中海西北部报告的塑料丰度相似。
