Anthropogenic inputs of boron into urban atmosphere: Evidence from boron isotopes of precipitations in Guiyang City, China | |
Zhi-Qi Zhao; Cong-Qiang Liu | |
2010 | |
发表期刊 | Atmospheric Environment |
卷号 | 44期号:34页码:4165-4171 |
摘要 | Boron (B) concentrations and isotopic compositions were measured in the precipitations of Guiyang, China for one year. Most precipitation samples have boron concentrations of from 2.1 to 4.8 ng ml−1, and δ11B values of from +2.0‰ to +30.0‰. Boron concentrations and δ11B values of heavy rain samples are generally higher than those of light rain and snow samples. Anthropogenic inputs provided most of the SO42− and NO3−, which were predominant ions in the precipitation. The major cation Ca2+ in the precipitation was mainly originated from local dust. The total boron in precipitation from Guiyang is explained by the mixing model of three boron sources. Assuming a δ11B value of +45‰ for the seawater component, contributions of marine source, organic matter and biomass combustion, and coal combustion were estimated to be 32%, 49%, and 19%, respectively to the total boron in Guiyang precipitations. The coal combustion and biomass (and/or organic matter) combustion showed different contributions of boron to the rainwaters in different seasons, the former in cold season while the latter in summer season had a more marked influence on the chemical and isotopic composition of the rainwater. The largest contribution of seawater-originated boron was observed for the heavy rain samples, which was up to 68%. This study indicates that the atmospheric environment of Guiyang city was strongly influenced by human activities, and boron isotopic composition is of great sensitivity to anthropogenic sources and can be a powerful technique to trace various sources of atmospheric emissions and even their origins. |
学科领域 | 环境地球化学 |
收录类别 | SCI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.gyig.ac.cn/handle/352002/4937 |
专题 | 环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文 |
推荐引用方式 GB/T 7714 | Zhi-Qi Zhao,Cong-Qiang Liu. Anthropogenic inputs of boron into urban atmosphere: Evidence from boron isotopes of precipitations in Guiyang City, China[J]. Atmospheric Environment,2010,44(34):4165-4171. |
APA | Zhi-Qi Zhao,&Cong-Qiang Liu.(2010).Anthropogenic inputs of boron into urban atmosphere: Evidence from boron isotopes of precipitations in Guiyang City, China.Atmospheric Environment,44(34),4165-4171. |
MLA | Zhi-Qi Zhao,et al."Anthropogenic inputs of boron into urban atmosphere: Evidence from boron isotopes of precipitations in Guiyang City, China".Atmospheric Environment 44.34(2010):4165-4171. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Anthropogenic inputs(362KB) | 开放获取 | 使用许可 | 浏览 请求全文 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Zhi-Qi Zhao]的文章 |
[Cong-Qiang Liu]的文章 |
百度学术 |
百度学术中相似的文章 |
[Zhi-Qi Zhao]的文章 |
[Cong-Qiang Liu]的文章 |
必应学术 |
必应学术中相似的文章 |
[Zhi-Qi Zhao]的文章 |
[Cong-Qiang Liu]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论