State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Sci Total Environ. 2021 Feb 20;756:144088. doi: 10.1016/j.scitotenv.2020.144088. Epub 2020 Nov 26.
The concentrations and distributions of nine novel brominated flame retardants (NBFRs) were analyzed in soil, lichen (Usnea aurantiaco-atra), and moss (Sanionia uncinata) samples collected from the Chinese Antarctic Great Wall Station and surrounding Fildes Peninsula area in west Antarctica. Total NBFR concentrations ranged from 61.2-225 pg/g dry weight (dw) in soil, 283-1065 pg/g dw in moss, and 135-401 pg/g dw in lichen, respectively. Decabromodiphenyl ethane (DBDPE) was the dominant NBFR in all samples, accounting for 65.2%, 50.1%, and 72.4% of cumulative NBFR concentration in soil, moss, and lichen, respectively. The concentrations of NBFRs in plant samples were higher than those in soil, which may be related to plant bioaccumulation. Significant log/log-linear correlations (p < 0.05) were found between the concentrations of BEHTEBP and total organic carbon (TOC) in soil, and between DBDPE and lipid content in mosses, indicating that TOC and lipid content potentially affect certain NBFRs in Antarctic soil and moss. This study presents the first report on NBFR contamination in soil and various vegetation in Antarctica.
本研究分析了中国南极长城站及周边菲尔德斯半岛地区土壤、地衣（Usnea aurantiaco-atra）和苔藓（Sanionia uncinata）中 9 种新型溴系阻燃剂（NBFRs）的浓度和分布。土壤中总 NBFR 浓度范围为 61.2-225 pg/g 干重（dw），苔藓中为 283-1065 pg/g dw，地衣中为 135-401 pg/g dw。所有样品中均以十溴二苯乙烷（DBDPE）为优势 NBFR，占土壤、苔藓和地衣中累积 NBFR 浓度的 65.2%、50.1%和 72.4%。植物样品中 NBFRs 的浓度高于土壤，这可能与植物的生物积累有关。土壤中 BEHTEBP 与总有机碳（TOC）之间以及苔藓中 DBDPE 与脂质含量之间存在显著的对数-线性相关性（p < 0.05），表明 TOC 和脂质含量可能会影响南极土壤和苔藓中的某些 NBFRs。本研究首次报道了南极土壤和各种植被中 NBFR 的污染情况。
