Impact of London Toxicity Charge and Ultra Low Emission Zone on NO2
Juan Prieto Rodríguez, María José Pérez Villadóniga, Rafael Salas, Ana Russo
Abstract
• A diff-in-diff model estimates the effect of London traffic policies on NO 2 levels. • Toxicity Charge (TC) and Ultra Low Emission Zone (ULEZ) improve air quality. • These two traffic policies reduce NO 2 in the city centre and, also, in nearby areas. • No border effects due to the TC or the ULEZ are observed. • Ultra Low Emission Zone leads to larger cuts in NO 2 levels than Toxicity Charge.
Topics & Concepts
Charge (physics)Air quality indexEnvironmental scienceToxicityMaterials scienceMeteorologyChemistryPhysicsOrganic chemistryQuantum mechanicsAir Quality and Health ImpactsUrban Transport and AccessibilityVehicle emissions and performance