Elemental Carbon and PM2.5Levels in an Urban Community Heavily Impacted by Truck Traffic

Hunts Point, a 690-acre peninsula in the South Bronx, New York City, is a hub in the tristate (New York, New Jersey, and Connecticut) freight transportation system. This study was carried out in response to community concerns about potential health effects of exposure to diesel exhaust particulate (...DEP). We measured particulate matter < 2.5 μm in aerodynamic diameter ( PM2.5) and elemental carbon (EC) on sidewalks and tested whether spatial variations in concentrations were related to local truck traffic density. Ten-hour integrated air samples for EC and PM2.5were collected for 9 days over a 3-week period in the summer of 1999 at seven geographically distinct intersections. Simultaneous traffic counts were carried out for each sampling event. Traffic was classified into three classes: passenger cars, small trucks, and large trucks (diesel vehicles). Mean diesel vehicle volumes ranged from 9.3 to 276.5 vehicles/hr across sites. Mean EC concentrations by site ranged from 2.6 μ g/ m3at the control site to 7.3 μ g/ m3along a designated truck route. Linear regression of site-specific mean EC concentration on mean large truck counts predicted an increase of 1.69 μ g/ m3EC per 100 large trucks/hr (SE = 0.37; p = 0.01; R2=0.84). Average PM2.5concentrations by site ranged 1.6-fold (1 Ausführliche Beschreibung Beschreibung ausblenden

1. Person:	Lena, T. Suvendrini
Weitere Personen:	Ochieng, Victor verfasserin; Carter, Majora verfasserin; Holguín-Veras, José verfasserin; Kinney, Patrick L. verfasserin
Quelle:	in Environmental health perspectives : EHP Vol. 110, No. 10 (2002), p. 1009-1015 Weitere Artikel
Format:	Online-Artikel
Sprache:	English
Veröffentlicht:	2002
Beschreibung:	Online-Ressource
Schlagworte:	research-article Diesel exhaust Hunts Point Inner cities Outdoor air pollution PM2.5 Urban
Online Zugang:	Volltext
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