Detection of Dechlorane Plus and brominated flame retardants in marketed fish in Japan

Fish samples purchased from Japanese markets were analyzed for Dechlorane Plus (DP)(syn-, anti-), polybrominated diphenyl ether (PBDE), and hexabromocyclododecane (HBCD)(α, γ). Twenty fish were analyzed using gas chromatography-mass spectrometry for DP and PBDE, and using liquid chromatography-tandem mass spectrometry for HBCD. DP was detected in 18 samples and ∑DP concentrations were <0.2-14.2 pg g⁻¹ wet wt. Among the DP isomers, anti-DP was the dominant residue observed in this study. PBDE was detected in all samples. Concentrations of ∑PBDE ranged from 2.2 to 878 pg g⁻¹ wet wt. HBCD was detected in 18 samples, and ∑HBCD concentrations were <0.02-21.9 ng g⁻¹ wet wt. In fish landed near the East China Sea and the Sea of Japan, we detected relatively high concentrations of DP, PBDE, and HBCD. These results indicate that the seawaters around East Asia are contaminated with flame retardants. This study demonstrates the presence of DP in fish marketed in Japan for the first time.     

电子垃圾回收地得克隆的污染水平及分布特征

对浙江某电子垃圾回收地水体、沉积物、土壤以及大气中得克隆（DP）的污染水平及分布特征进行了调查。结果表明，水、沉积物、土壤和大气样品中均检测出了 DP，分别为0．843～1．56 ng/L，0．185～7．03 ng/g干重，0．115～26．4 ng/g干重和11．2 pg/m3；该区域 DP分布特征表明电子垃圾的拆解和焚烧是环境中 DP的重要来源。