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Atmospheric Fossil Fuel CO2 Traced by Delta C-14 in Beijing and Xiamen, China: Temporal Variations, Inland/Coastal Differences and Influencing Factors
Niu, Zhenchuan1,2; Zhou, Weijian1,2,3; Wu, Shugang1,2; Cheng, Peng1,2; Lu, Xuefeng1,2; Xiong, Xiaohu1,2; Du, Hua1,2; Fu, Yunchong1,2; Wang, Gehui1
2016-06-07
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
Volume50Issue:11Pages:5474-5480
SubtypeArticle
AbstractOne year of atmospheric Delta(CO2)-C-14 were observed in 2014 in the inland city of Beijing and coastal city of Xiamen, China, to trace temporal CO2ff variations and to determine the factors influencing them. The average CO2ff concentrations at the sampling sites in Beijing and Xiamen were 39.7 +/- 36.1 ppm and 13.6 +/- 12.3 ppm, respectively. These contributed 75.2 +/- 14.6% and 59.1 +/- 26.8% to their respective annual Delta CO2 offsets over background CO2 concentrations. Significantly (p < 0.05) high CO2ff values were observed in winter in Beijing. We did not find any significant differences in CO2ff values between weekdays and weekends. Diurnal CO2ff variations were plainly evident, with high values between midnight and 4:00, and during morning and afternoon rush hours. The sampling site in the inland city of Beijing displayed much higher CO2ff inputs and overall temporal variations than the site in the coastal city of Xiamen. The variations of CO2ff at both sites were controlled by a combination of emission sources, topography, and atmospheric dispersion. In particular, diurnal observations at the urban site in Beijing showed that CO2ff was easily accumulated under the southeast wind conditions.
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1021/acs.est.5b02591
WOS KeywordCARBON-DIOXIDE ; URBAN AREA ; AIRBORNE MEASUREMENTS ; ANTHROPOGENIC CO2 ; SOUTHEAST CHINA ; EMISSIONS ; SITE ; RADIOCARBON ; (CO2)-C-14 ; CITY
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000377629900009
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5729
Collection加速器质谱中心
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China
2.Xian AMS Ctr, Shaanxi Prov Key Lab Accelerator Mass Spectrometr, Xian, Peoples R China
3.Xi An Jiao Tong Univ, Xian 710049, Peoples R China
Recommended Citation
GB/T 7714
Niu, Zhenchuan,Zhou, Weijian,Wu, Shugang,et al. Atmospheric Fossil Fuel CO2 Traced by Delta C-14 in Beijing and Xiamen, China: Temporal Variations, Inland/Coastal Differences and Influencing Factors[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2016,50(11):5474-5480.
APA Niu, Zhenchuan.,Zhou, Weijian.,Wu, Shugang.,Cheng, Peng.,Lu, Xuefeng.,...&Wang, Gehui.(2016).Atmospheric Fossil Fuel CO2 Traced by Delta C-14 in Beijing and Xiamen, China: Temporal Variations, Inland/Coastal Differences and Influencing Factors.ENVIRONMENTAL SCIENCE & TECHNOLOGY,50(11),5474-5480.
MLA Niu, Zhenchuan,et al."Atmospheric Fossil Fuel CO2 Traced by Delta C-14 in Beijing and Xiamen, China: Temporal Variations, Inland/Coastal Differences and Influencing Factors".ENVIRONMENTAL SCIENCE & TECHNOLOGY 50.11(2016):5474-5480.
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