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Initial data from Congestion Relief Tolling

Description

Report on air pollution impacts from NYC Congestion Relief Zone. Provides data from real-time air quality monitoring inside and outside the zone.

Questions this resource can help answer

What was the early impact of the NYC congestion relief zone?

How do I use this resource?

Online report that provides data in graphs for PM2.5 concentrations comparing time periods before and after implementation of the tolling zone.

Pro tips

There is also an more detailed analysis, available in a PDF report at https://www.mta.info/document/19563

Resource information

Resource owner

Government

Format

Website

Backup URL

Update Frequency

Annually

Geographic Coverage

county, Local (city, municipality), New York

Technical specifications

Methodology

Air quality monitoring

Sectors

Transportation

Other Specifications

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Model

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Model

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AnalysisModelTool

Human Exposure Model (HEM)

EPA’s Human Exposure Model (HEM) is a probabilistic exposure assessment tool used to estimate how people are exposed to contaminants (often air pollutants, but not limited to them) through different pathways and microenvironments. It is designed to support human health risk assessments by translating environmental concentrations into population exposure distributions for specific pollutants, locations, and demographic groups. HEM uses information on contaminant levels, population characteristics, and time–activity patterns to produce quantitative estimates of average and high-end exposures suitable for regulatory analyses and comparative policy evaluations.