Claime588eb82a30399a5b30cdc36410ecfed0aff0fa65a2f255bc0a411f4e5c748f7·My Arguments

In NYC's first six months, zone PM2.5 fell 22% (Cornell, npj Clean Air, based on 42 monitors over 518 days), with smaller declines across all five boroughs and the suburbs; Stockholm's emissions fell roughly 10-14%.

Evidence (1)

Cornell: congestion pricing improved air quality
PM2.5 fell 22% in the Congestion Relief Zone in the first six months (42 monitors, 518 days), with declines across boroughs and suburbs.
https://news.cornell.edu/stories/2025/12/congestion-pricing-improved-air-quality-nyc-and-suburbs

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