Speciation of volatile arsenic at geothermal features in Yellowstone National Park
Speciation of volatile arsenic at geothermal features in Yellowstone National Park
复制标题
黄石国家公园地热特征中挥发性砷的形态
DOI：
10.1016/j.gca.2006.02.019
复制
发表时间：
2006
影响因子：
5
通讯作者：
M. Sandstrom
中科院分区：
文献类型：
--
作者：
B. Planer;C. Lehr;C. Lehr;J. Matschullat;B. Merkel;D. Nordstrom;M. Sandstrom
黄石国家公园的地热特征每升水中含有几毫克的砷。部分砷被挥发并释放到大气中。研究发现，温泉表面的总挥发性砷浓度在0.5-200mg /m3之间，超过了之前假设的每立方米纳克背景浓度范围。采用固相微萃取纤维对挥发性砷进行形态分析，并采用气相色谱-质谱分析。在样品中最常见的砷种类是（CH3）2AsCl，其次是（CH3）3As、（CH3）2AsSCH3和ch3ascl2。该报告首次记录了氯胂和硫胂在自然环境中的存在。毒性、移动性和降解产物是未知的。
Geothermal features in the Yellowstone National Park contain up to several milligram per liter of aqueous arsenic. Part of this arsenic is volatilized and released into the atmosphere. Total volatile arsenic concentrations of 0.5–200mg/m3at the surface of the hot springs were found to exceed the previously assumed nanogram per cubic meter range of background concentrations by orders of magnitude. Speciation of the volatile arsenic was performed using solid-phase micro-extraction fibers with analysis by GC–MS. The arsenic species most frequently identified in the samples is (CH3)2AsCl, followed by (CH3)3As, (CH3)2AsSCH3, and CH3AsCl2in decreasing order of frequency. This report contains the first documented occurrence of chloro- and thioarsines in a natural environment. Toxicity, mobility, and degradation products are unknown.
砷化氢毒性：化学和机械影响。
DOI：
10.1080/15287399509532045
发表时间：
1995
期刊：
Journal of toxicology and environmental health.
影响因子：
--
作者：
Klimecki,WT;Carter,DE
通讯作者：
Carter,DE