| Title: | "Measurement of hydrogen peroxide and organic hydroperoxide concentrations during autumn in Beijing, China" |
| Author(s): | Zhang Q; Liu J; He Y; Yang J; Gao J; Liu H; Tang W; Chen Y; Fan W; Chen X; Chai F; Hatakeyama S; |
| Address: | "College of Environmental & Resource Sciences of Zhejiang University, Hangzhou 310058, China. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Zhejiang Huahai Pharmaceutical Co., Ltd., Taizhou 317000, China. College of Geography and Environment, Shandong Normal University, Jinan 250014, China. Beijing Center for Physical & Chemical Analysis, Beijing 100089, China. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address: chenxuan@craes.org.cn. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address: chaifh@craes.org.cn. Institute of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8538, Japan" |
| DOI: | 10.1016/j.jes.2016.12.015 |
| ISSN/ISBN: | 1001-0742 (Print) 1001-0742 (Linking) |
| Abstract: | "Gaseous peroxides play important roles in atmospheric chemistry. To understand the pathways of the formation and removal of peroxides, atmospheric peroxide concentrations and their controlling factors were measured from 7:00 to 20:00 in September, October, and November 2013 at a heavily trafficked residential site in Beijing, China, with average concentrations of hydrogen peroxide (H(2)O(2)) and methyl hydroperoxide (MHP) at 0.55ppb and 0.063ppb, respectively. H(2)O(2) concentrations were higher in the afternoon and lower in the morning and evening, while MHP concentrations did not exhibit a regular diurnal pattern. Both H(2)O(2) and MHP concentrations increased at dusk in most cases. Both peroxides displayed monthly variations with higher concentrations in September. These results suggested that photochemical activity was the main controlling factor on variations of H(2)O(2) concentrations during the measurement period. Increasing concentrations of volatile organic compounds emitted by motor vehicles were important contributors to H(2)O(2) and MHP enrichment. High levels of H(2)O(2) and MHP concentrations which occurred during the measurement period probably resulted from the transport of a polluted air mass with high water vapor content passing over the Bohai Bay, China" |
| Keywords: | Air Pollutants/*analysis Air Pollution Atmosphere/chemistry Beijing *Environmental Monitoring Hydrogen Peroxide/chemistry Peroxides/*analysis Seasons Volatile Organic Compounds Controlling factor Formation Peroxide Transport of polluted air mass Volatile; |
| Notes: | "MedlineZhang, Qingyu Liu, Jiaoyu He, Youjiang Yang, Jiaying Gao, Jian Liu, Houfeng Tang, Wei Chen, Yizhen Fan, Wenhao Chen, Xuan Chai, Fahe Hatakeyama, Shiro eng Netherlands 2018/02/27 J Environ Sci (China). 2018 Feb; 64:72-81. doi: 10.1016/j.jes.2016.12.015. Epub 2017 Jan 7" |
