Comparative on Causes and Accumulation of Selenium in the Tree-rings Ambient High-selenium Coal Combustion Area from Yutangba, Hubei, China |
| |
| Authors: | Guijian Liu Ying Zhang Cuicui Qi Liugen Zheng Yiwei Chen Zicheng Peng |
| |
| Institution: | (1) CAS Key Laboratory of Crust–Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China;(2) State Key Laboratory of loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi’an 710075 Shaanxi, People’s Republic of China |
| |
| Abstract: | Toxic trace elements emitted during coal combustion are the main sources of air pollution. They are released into the atmosphere
mainly in the forms of fine ash, smoke and flue, and thus adversely affect plant, animal and human health. Selenium is one
of toxic and the most volatile in coal. Large amount of atmospheric emission of selenium, as well as selenium present and
scrubber stockpiles in ash may create serious environmental problems. In the paper, on the basis of investigating the abundance
and distribution of selenium in plant-rings during recent 20 years, the bioaccumulation of selenium is explained that selenium
in plant, which were collected from the village of selenium-rich coal combustion, is much higher than that in plants collected
away from the village of selenium-rich coal combustion. The main origins of selenium are selenium-rich coal combustion and
high-selenium rock weathered. The selenium recycle by food chain and selenium will accumulate and redistribute in environments. |
| |
| Keywords: | Coal combustion Selenium Rings |
| 本文献已被 PubMed SpringerLink 等数据库收录！ |
|
