Investigation of a river-tunnel effect on PM_2.5 concentrations in New York City subway stations.

ABSTRACT: It is well-documented that subway stations exhibit high fine particulate matter (PM_2.5) concentrations. Little is known about the potential of river-tunnels to increase PM_2.5 concentrations in subways. We hypothesized a "river-tunnel" effect exists: Stations adjacent to poorly ventilated tunnels that travel beneath rivers exhibit higher PM_2.5 concentrations than more distant stations. Accordingly, the PM_2.5 concentrations were monitored at stations adjacent to and two- and three-stations distant from the river-tunnel. Multivariate linear regression analysis was conducted to disentangle how proximity to a river-tunnel and other factors (e.g., depth) influence concentrations. Stations adjacent to a river-tunnel had 80-130% higher PM_2.5 c

SUBMITTER: Luglio DG 

PROVIDER: S-EPMC9879276 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature