Emission characteristics of polycyclic aromatic hydrocarbons and nitro-polycyclic aromatic hydrocarbons from diesel trucks based on on-road measurements
Air pollution control equipment
; Aromatic compounds
; Aromatic hydrocarbons
; Aromatization
; Automobiles
; Crashworthiness
; High performance liquid chromatography
; Hydrocarbons
; Liquid chromatography
; Off road vehicles
; Transportation
; Trucks
; Vehicles
; Diesel vehicles
; Emission characteristics
; Emission factors
; Emission measurement systems
; Nitropolycyclic aromatic hydrocarbons
; NPAHs
; PEMS
; Polycyclic aromatic hydrocarbon (PAH)
; Polycyclic aromatic hydrocarbons
; aromatic hydrocarbon
; nitro polycyclic aromatic hydrocarbon
; polycyclic aromatic hydrocarbon
; unclassified drug
; emission control
; PAH
; road traffic
; traffic emission
; transport vehicle
; trucking
; Article
; car driving
; China
; diesel engine
; gas
; high performance liquid chromatography
; highway
; laboratory
; measurement
; motor vehicle
; portable emission measurement system
; priority journal
; Beijing [China]
; China
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:
Polycyclic aromatic hydrocarbon (PAH) and nitro-polycyclic aromatic hydrocarbon (NPAH) emissions from 18 diesel trucks of different sizes and with different emission standards were tested in Beijing using a portable emission measurement system (PEMS). Both the gaseous- and particulate-phase PAHs and NPAHs were quantified by high-performance liquid chromatography (HPLC) in the laboratory. The emission factors (EFs) of the total PAHs from light-duty diesel trucks (LDDTs), medium-duty diesel trucks (MDDTs) and heavy-duty diesel trucks (HDDTs) were 82229.11 � 41906.06, 52867.43 � 18946.47 and 93837.35 � 32193.14 μg/km, respectively, much higher than the respective values of total NPAHs from their counterpart vehicles. The gaseous phase had an important contribution to the total PAHs and NPAHs, with a share rate of approximately 69% and 97% on average, respectively. The driving cycle had important impacts on the emissions of PAHs and NPAHs, especially for LDDTs and HDDTs. Higher emissions of PAHs and NPAHs were detected on non-highway roads compared to that on highways for these two types of vehicles. Compared to the results of different studies, the difference in the EFs of PAHs and NPAHs can reach several orders of magnitudes, which would introduce errors in the development of an emission inventory of PAHs and NPAHs. � 2016 Elsevier Ltd
School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing, China
Recommended Citation:
Cao X,, Hao X,, Shen X,et al. Emission characteristics of polycyclic aromatic hydrocarbons and nitro-polycyclic aromatic hydrocarbons from diesel trucks based on on-road measurements[J]. Atmospheric Environment,2017-01-01,148