Floating particles with high copper concentration in the sea-surface microlayer.
Floating particles with high copper concentration in the sea-surface microlayer.
复制标题
海面微层中铜浓度高的漂浮颗粒。
DOI：
10.1007/s11356-021-14187-9
复制
发表时间：
2021
影响因子：
5.8
通讯作者：
and Emmanouil,C.
中科院分区：
文献类型：
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作者：
Okamura,H.;Kano,K.;Yap;C.K.;and Emmanouil,C.
本研究试图澄清海面微层（S-SML）中是否存在含有高浓度铜的悬浮颗粒。为此，在2018年至2020年期间定期从船舶系泊池收集S-SML中的悬浮颗粒（10-2000μm），并将悬浮颗粒中的酸溶性Cu浓度作为颗粒Cu（P-Cu）进行测量。池塘S-SML中P-Cu的最高浓度为75 μg L−1，第90个百分位值为2.5 μg L−1。这低于北美港口 S-SML 报告的 P-Cu 值，但比大西洋散装海水中发现的 P-Cu 值高 140 倍。非生物（非生物）来源的 S-SML 中 P-Cu 的最高浓度为 17 μg L−1，非生物 P-Cu 与 P-Cu 的比率在 0.2% 至 100% 之间变化，可能取决于 S-SML 样品中生物材料的质量和数量。假设此处检查的 S-SML 颗粒含有来自船舶防污涂料的高浓度铜。
This study sought to clarify whether suspended particles containing high Cu concentrations are present in the sea-surface microlayer (S-SML). For this reason, suspended particles (10–2000 μm) in the S-SML were collected periodically from a ship mooring pond during 2018–2020, and the acid-soluble Cu concentration in the suspended particles was measured as particulate Cu (P-Cu). The highest concentration of P-Cu in the S-SML of the pond was 75 μg L−1with a 90th percentile value of 2.5 μg L−1. This is below P-Cu values reported for the S-SML in North American ports, but 140 times higher than this found in bulk seawater in the Atlantic Ocean. The highest P-Cu concentration in the S-SML of non-organism (abiotic) origin was 17 μg L−1, and the abiotic P-Cu to P-Cu ratio varied from 0.2 to 100%, likely depending on the quality and quantity of biogenic material in the S-SML samples. It is assumed that the S-SML particles examined here contain high Cu concentrations originating from ship antifouling paints.