An Ambient Measurement Technique for Vehicle Emission Quantification and Concentration Source Apportionment.

ABSTRACT: We develop a new technique called plume regression where fast response instruments located at the roadside are used to measure exhaust plumes of passing vehicles. The approach is used to generate highly disaggregated vehicle emissions information by vehicle type, which compares well with traditional vehicle emission remote sensing. Additionally, the technique provides valuable new information on ambient concentration source apportionment by vehicle type. The technique is flexible enough to consider a wide range of air pollutants and be deployed at roadside ambient monitoring locations. The new approach is used to quantify emissions and concentration source apportionment for ammonia (NH₃) and nitrogen oxides (NO_x). We find that emissions of NH₃

SUBMITTER: Farren NJ 

PROVIDER: S-EPMC11562735 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature