Emissions and Secondary Formation of Air Pollutants from Modern Heavy-Duty Trucks in Real-World Traffic—Chemical Characteristics Using On-Line Mass Spectrometry
Liyuan Zhou, Christian Mark Salvador, Michael Priestley, Mattias Hallquist, Qianyun Liu, Chak K. Chan, Åsa M. Hallquist
Abstract
ratio ≥2). Byproducts from urea-selective catalytic reduction systems had both primary and secondary sources. A non-negative matrix factorization analysis highlighted the issue of vehicle maintenance as a remaining concern. However, the adoption of Euro VI has a significant positive effect on emissions in real-world traffic and should be considered in, for example, urban air quality assessments.
Topics & Concepts
TruckChemistryAir quality indexPollutantPrimary (astronomy)Environmental chemistryWaste managementEnvironmental scienceMeteorologyEngineeringAutomotive engineeringOrganic chemistryAstronomyPhysicsVehicle emissions and performanceAir Quality and Health ImpactsAtmospheric chemistry and aerosols