Jang Seokyoon, Choi Mansik, Jeong Youn-Joong, Joe Dongjin, Yang Dasom, Lee Minjae, Kim Jinwoo
Institute of Coastal Management and Technology, Jeonnam 58552, Republic of Korea.
Department of Marine Environmental Sciences, Chungnam National University, Daejeon 34134, Republic of Korea; Department of Earth, Environmental & Space Sciences, Chungnam National University, Daejeon 34134, Republic of Korea.
Mar Pollut Bull. 2025 Feb;211:117423. doi: 10.1016/j.marpolbul.2024.117423. Epub 2024 Dec 18.
The elemental and isotopic (δCu and δZn) characteristics of 34 AFP samples from 5 paint manufacturers, the isotopic fractionation during the dissolution of AFPs by seawater, and the subsequent adsorption of isotopes onto coastal fine-grained sediments were investigated to identify potential indicators (metal ratios and isotopes). The δCu and δZn values for 34 AFPs could be divided into 2 groups regardless of the type of paint or manufacturer. Dissolution by seawater induced substantial fractionation but δCu and δZn approached the bulk AFP values when the leached fraction increased. The adsorption of metals onto marine sediments resulted in substantial fractionation (ΔCu = 0.91 ± 0.30 ‰ and ΔZn = -0.14 ± 0.07 ‰), but the δCu values in sediments were similar to those in bulk AFP because almost all of the Cu adsorbed to marine sediments within 12 h.
研究了来自5家涂料制造商的34个防污漆样品的元素和同位素（δCu和δZn）特征、海水溶解防污漆过程中的同位素分馏以及随后同位素在沿海细粒沉积物上的吸附情况，以确定潜在指标（金属比率和同位素）。34个防污漆样品的δCu和δZn值可分为两组，与涂料类型或制造商无关。海水溶解导致了显著的分馏，但当浸出部分增加时，δCu和δZn接近防污漆整体值。金属在海洋沉积物上的吸附导致了显著的分馏（ΔCu = 0.91±0.30‰，ΔZn = -0.14±0.07‰），但沉积物中的δCu值与防污漆整体中的值相似，因为几乎所有的Cu在12小时内就吸附到了海洋沉积物上。
