Unknown

Dataset Information

0

Investigation of a river-tunnel effect on PM2.5 concentrations in New York City subway stations.


ABSTRACT: It is well-documented that subway stations exhibit high fine particulate matter (PM2.5) concentrations. Little is known about the potential of river-tunnels to increase PM2.5 concentrations in subways. We hypothesized a "river-tunnel" effect exists: Stations adjacent to poorly ventilated tunnels that travel beneath rivers exhibit higher PM2.5 concentrations than more distant stations. Accordingly, the PM2.5 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 PM2.5 concentrations than more distant stations. Moreover, distance from a river-tunnel was the strongest PM2.5-influencing factor This distance effect was not observed at underground stations adjacent to a river-bridge. The "river-tunnel" effect explains some of the inter-station variability in subway PM2.5 concentrations. These results support the need for improving ventilation systems in subways.

SUBMITTER: Luglio DG 

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

REPOSITORIES: biostudies-literature

altmetric image

Publications

Investigation of a river-tunnel effect on PM<sub>2.5</sub> concentrations in New York City subway stations.

Luglio David G DG   Huynh Tri T   Saporito Antonio A   Gordon Terry T  

Transportation research. Part D, Transport and environment 20221230


It is well-documented that subway stations exhibit high fine particulate matter (PM<sub>2.5</sub>) concentrations. Little is known about the potential of river-tunnels to increase PM<sub>2.5</sub> concentrations in subways. We hypothesized a "river-tunnel" effect exists: Stations adjacent to poorly ventilated tunnels that travel beneath rivers exhibit higher PM<sub>2.5</sub> concentrations than more distant stations. Accordingly, the PM<sub>2.5</sub> concentrations were monitored at stations adj  ...[more]

Similar Datasets

| S-EPMC4270389 | biostudies-literature
| S-EPMC5093208 | biostudies-literature
| S-EPMC11460011 | biostudies-literature
| S-EPMC8102649 | biostudies-literature
| S-EPMC5650241 | biostudies-literature
| S-EPMC7708408 | biostudies-literature
| S-EPMC6139470 | biostudies-literature
| S-EPMC5603263 | biostudies-literature
| S-EPMC9670839 | biostudies-literature
| S-EPMC9871862 | biostudies-literature