National Marine Environmental Monitoring Center, Dalian 116023, China.
National Marine Environmental Monitoring Center, Dalian 116023, China.
Chemosphere. 2015 Oct;137:9-13. doi: 10.1016/j.chemosphere.2015.04.030. Epub 2015 May 15.
Distribution of 12 selected polybrominated diphenyl ethers (PBDEs) was characterized in soil, moss and reindeer dung samples collected simultaneously at Ny-Ålesund of the Arctic. The average PBDE concentrations were 42 pg/g (dry weight) in soil, 122 pg/g in moss and 72 pg/g in reindeer dung. Significant log/log-linear relationship was observed between the soil/moss quotients (QSM) and the sub-cooled liquid vapor pressures of PBDEs (r(2)=0.80). Moreover, excellent log/log-linear relationships between QSM and the octanol/air partition coefficients as well as between the moss/dung quotient (QMD) and the octanol/water partition coefficients of PBDEs were also observed, indicating that the physicochemical properties of PBDEs are appropriate parameters for characterizing the distribution of PBDEs in soil, moss and reindeer dung at Ny-Ålesund. Capsule abstract: Significant log-linear correlations were observed between physicochemical properties of PBDEs and their soil/moss (moss/dung) quotients.
在北极的 Ny-Ålesund 同时采集了土壤、苔藓和驯鹿粪便样本，对其中 12 种选定的多溴二苯醚（PBDEs）的分布进行了描述。土壤中 PBDE 的平均浓度为 42pg/g（干重），苔藓中为 122pg/g，驯鹿粪便中为 72pg/g。在 PBDEs 的土壤/苔藓比率（QSM）与亚冷却液体蒸气压之间观察到显著的对数/线性关系（r²=0.80）。此外，在 QSM 与辛醇/空气分配系数之间以及在 QMD 与 PBDEs 的辛醇/水分配系数之间也观察到了极好的对数/线性关系，表明 PBDEs 的物理化学性质是描述 PBDEs 在 Ny-Ålesund 的土壤、苔藓和驯鹿粪便中的分布的合适参数。
