Accumulation of Arsenic and Copper by Bryophytes Growing in an Aquatic Environment near Copper Mine Tailings

作者：Suzuki Yusuke; Takenaka Chisato^*; Tomioka Rie; Tsubota Hiromi; Takasaki Yuka; Umemura Tomonari

来源：Mine Water and the Environment, 2016, 35(3): 265-272.

DOI：10.1007/s10230-015-0335-7

• Brachythecium plumosum
• Phosphorus
• Phytoremediation
• Scopelophila cataractae
• Rhynchostegium riparioides

Bryophytes with high As accumulation affinity were identified in the aquatic environment. We surveyed a stream near copper mine tailings and then conducted laboratory experiments to confirm As accumulation in the bryophytes with high As affinity. We found that a moss, Scopelophila cataractae, accumulates As in addition to Cu in aquatic environments and confirmed it in laboratory experiments. The highest value for As in S. cataractae from the field survey was 1300 mg/kg dry weight at relatively low As concentrations in the stream water (0.005 mg/L). In addition, Brachythecium plumosum and Rhynchostegium riparioides may also be useful bryophytes for accumulation of Cu and As, though the mechanisms of As accumulation might differ between these two bryophytes and S. cataractae.

• 出版日期2016-9