Does Aqueous-Phase Oxidation of HCHO Opens a Pathway to Formic Acids in Atmosphere? | |
Xu Gang; Lee XinQing; Shao HongBo; Lv YingChun | |
2010 | |
Source Publication | CLEAN – Soil, Air, Water
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Volume | 38Issue:11Pages:1006–1009 |
Abstract | Formic acid is the major contributor to acid rain in some regions but its sources are not fully understood. We investigated the aqueous-phase reactions of HCHO (aq) and OH. radicals at enlarged rainwater pH values (2.49–5.89) in Guiyang, China from May 2006 to April 2007. Our results show that there were no significant correlation between the [HCOOH]t/[HCHO] (aq) and the rainwater pH. The ratio did not appear to vary consistently as a function of rainwater pH as predicted by theoretical model. In addition, we saw no clear evidence that oxidation of HCHO (aq) would produce significant HCOOH (aq) which indicates this reaction may be only a minor contribution to the budget of HCOOH (g) in atmosphere. Further investigation is strongly suggested to be carried out in field cloud water, fog water, or rainwater because the ratios would be diverged from equilibrium value as a result of other chemical or physical processes. |
Subject Area | 环境地球化学 |
Indexed By | SCI |
Language | 英语 |
Document Type | 期刊论文 |
Identifier | http://ir.gyig.ac.cn/handle/352002/4946 |
Collection | 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 |
Recommended Citation GB/T 7714 | Xu Gang,Lee XinQing,Shao HongBo,et al. Does Aqueous-Phase Oxidation of HCHO Opens a Pathway to Formic Acids in Atmosphere?[J]. CLEAN – Soil, Air, Water,2010,38(11):1006–1009. |
APA | Xu Gang,Lee XinQing,Shao HongBo,&Lv YingChun.(2010).Does Aqueous-Phase Oxidation of HCHO Opens a Pathway to Formic Acids in Atmosphere?.CLEAN – Soil, Air, Water,38(11),1006–1009. |
MLA | Xu Gang,et al."Does Aqueous-Phase Oxidation of HCHO Opens a Pathway to Formic Acids in Atmosphere?".CLEAN – Soil, Air, Water 38.11(2010):1006–1009. |
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