| Wet deposition of mercury within the vicinity of a cement plant before and during cement plant maintenance | |
| Sarah E.Rothenberg; Lester McKee; Alicia Gilbreath; Donald Yee; Mike Connor; Xuewu Fu | |
| 2010 | |
| 发表期刊 | Atmospheric Environment
 |
| 卷号 | 44期号:10页码:1255-1262 |
| 摘要 | Hg species (total mercury, methylmercury, reactive mercury) in precipitation were investigated in the vicinity of the Lehigh Hanson Permanente Cement Plant in the San Francisco Bay Area, CA., USA. Precipitation was collected weekly between November 29, 2007 and March 20, 2008, which included the period in February and March 2008 when cement production was minimized during annual plant maintenance. When the cement plant was operational, the volume weighted mean (VWM) and wet depositional flux for total Hg (HgT) were 6.7 and 5.8 times higher, respectively, compared to a control site located 3.5 km east of the cement plant. In February and March, when cement plant operations were minimized, levels were approximately equal at both sites (the ratio for both parameters was 1.1). Due to the close proximity between the two sites, meteorological conditions (e.g., precipitation levels, wind direction) were similar, and therefore higher VWM HgT levels and HgT deposition likely reflected increased Hg emissions from the cement plant. Methylmercury (MeHg) and reactive Hg (Hg(II)) were also measured; compared to the control site, the VWM for MeHg was lower at the cement plant (the ratio = 0.75) and the VWM for Hg(II) was slightly higher (ratio = 1.2), which indicated the cement plant was not likely a significant source of these Hg species to the watershed. |
| 关键词 | Mercury Precipitation Cement Plant Flux Methylmercury |
| 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/352002/6881 |
| 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 | Sarah E.Rothenberg,Lester McKee,Alicia Gilbreath,et al. Wet deposition of mercury within the vicinity of a cement plant before and during cement plant maintenance[J]. Atmospheric Environment,2010,44(10):1255-1262. |
| APA | Sarah E.Rothenberg,Lester McKee,Alicia Gilbreath,Donald Yee,Mike Connor,&Xuewu Fu.(2010).Wet deposition of mercury within the vicinity of a cement plant before and during cement plant maintenance.Atmospheric Environment,44(10),1255-1262. |
| MLA | Sarah E.Rothenberg,et al."Wet deposition of mercury within the vicinity of a cement plant before and during cement plant maintenance".Atmospheric Environment 44.10(2010):1255-1262. |
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