DOI: 10.1016/j.atmosenv.2015.08.036
Scopus记录号: 2-s2.0-84944061080
论文题名: Measurements of real-world vehicle CO and NOx fleet average emissions in urban tunnels of two cities in China
作者: Deng Y ; , Chen C ; , Li Q ; , Hu Q ; , Yuan H ; , Li J ; , Li Y
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 122 起始页码: 417
结束页码: 426
语种: 英语
英文关键词: Carbon monoxide
; In-use fleet emission factors
; Measurement
; Nitrogen oxides
; Urban tunnel
Scopus关键词: Air quality
; Carbon monoxide
; Measurements
; Nitrogen oxides
; Pollution
; Roads and streets
; Transportation
; Vehicles
; CO concentrations
; Dilute pollutants
; Environmental assessment
; Fleet emissions
; Mass balance model
; Maximum concentrations
; Real-world drivings
; Urban tunnel
; Fleet operations
; carbon monoxide
; nitrogen oxide
; carbon monoxide
; dilution
; environmental assessment
; environmental gradient
; material flow analysis
; measurement method
; nitrogen oxides
; spatiotemporal analysis
; traffic emission
; tunnel
; urban pollution
; ventilation
; air pollution
; Article
; China
; controlled study
; Europe
; exhaust gas
; motor vehicle
; priority journal
; Changsha
; China
; China
; Hunan
; Shaanxi
; Shanghai
; Yanan
; Yingpan
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Urban tunnels located in the city center areas, can alleviate traffic pressure and provide more convenient traffic for people. Vehicles emit pollutants that are significant contributors to air pollution inside and at the outlet of tunnels. Ventilation is the most widely used method to dilute pollutants in tunnels. To calculate the design required air volume flow accurately, vehicle emissions should be exactly determined. Emission factors are important parameters to estimate vehicle emissions. To characterize carbon monoxide (CO) and nitrogen oxides (NOX) emission factors for a mixed vehicle fleet under real-world driving conditions of urban China, we measured CO and NOX concentrations in Shanghai East Yan'an Road tunnel and Changsha Yingpan Road tunnel in 2012 and 2013. In-use fleet average CO and NOX emission factors were calculated according to tunnel pollutants mass balance models. The results showed that the maximum CO concentration in August was 86 ppm, while in October it was 45 ppm in Shanghai East Yan'an Road tunnel. The maximum concentrations of CO and NOX were 33 ppm and 2 ppm in Changsha Yingpan Road tunnel, respectively. In-use fleet average CO emission factors of East Yan'an Road tunnel, with gradient of -3% ~ 3%, were 1.266 (±0.889) ~ 3.974 (±2.189) g km-1 vehicle-1. In-use fleet average CO and NOX emission factors of Yingpan Road tunnel with gradient of -6% ~ 6% amounted to 0.754 (±0.561) ~ 6.050 (±5.940) g km-1 vehicle-1 and 0.121 (±0.022) ~ 0.818 (±0.755) g km-1 vehicle-1, respectively. The dependences of CO and NOX emission on roadway gradient and vehicle speed were found. The average CO and NOX emission factors increased with the ascending of roadway gradient as well as reverse with vehicle speed. These findings provide meaningful reference for ventilation design and environmental assessment of urban tunnels, and further help provide basic data to formulate relevant standards and norms. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81451
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, China; College of Architecture and Civil Engineering, North China Institute of Science and Technology, Beijing, China; Beijing General Municipal Engineering Design and Research Institute Co., Ltd, Beijing, China
Recommended Citation:
Deng Y,, Chen C,, Li Q,et al. Measurements of real-world vehicle CO and NOx fleet average emissions in urban tunnels of two cities in China[J]. Atmospheric Environment,2015-01-01,122