Guidance for improving subway air quality (English, HTML)

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Publisher-reported update

2024-06-05

Urban rail rapid transit systems are a staple of public transit. They provide access to employment and social services, decrease private vehicle use, and promote physical activity. This document provides guidance to public transit authorities and their municipal and provincial partners on options to mitigate subway air pollution. It includes background on the sources of subway PM pollution, factors that affect them, a perspective on Canadian subway air quality, and a thorough review of the research on methods to reduce concentrations of PM in subways. This information can support informed decision-making to help improve the air quality in subway systems.

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