Cornell Study: NYC Congestion Pricing Reduces Air Pollution by 22% in First Six Months
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5mo ago· 3 min readenNews
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Summary
A Cornell University study found that New York City's congestion pricing scheme reduced air pollution by 22% in Manhattan's toll zone during its first six months of operation (January-June 2025). The research analyzed data from 42 air quality monitors across the New York metropolitan area, showing significant reductions in PM2.5 concentrations and improved air quality throughout the region. The findings provide the first rigorous evidence of the environmental benefits of the controversial Congestion Relief Zone program.
Key quotes
· 3 pulledIn its first six months, New York City's controversial congestion pricing scheme has reduced air pollution by 22% in Manhattan's toll zone, while improving air quality across the entire metropolitan region, according to new research.
The Cornell University study analysed data from 42 air quality monitors throughout the New York area between January 2024 and June 2025, tracking PM2.5 concentrations before and after the January 2025 launch of the Congestion Relief Zone (CRZ).
The findings provide the first rigorous evidence that charging drivers to enter Manhattan's central business district can deliver significant environmental benefits beyond just reducing traffic congestion.
In its first six months, New York City’s controversial congestion pricing scheme has reduced air pollution by 22% in Manhattan’s toll zone, while improving air quality across the entire metropolitan region, according to new research. The Cornell Universit
