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Pennsylvania
Bureau of Air Quality

Monitoring Toxic Pollutants

Chester / Marcus Hook / Swarthmore Site

View of the Chester site.Image of a volatile organic compound sampler.Image of a particulate matter (PM10) sampler.

These three sites are part of the Southern Delaware County Air Monitoring Project. In 1995, DEP, working with EPA Region III, began measuring the concentrations of certain pollutants in the ambient air of Chester and Marcus Hook, located in southern Delaware County. The goal was to learn more about the air quality in the area and assess the risk of certain pollutants. A third site located at Swarthmore was added to the study to provide a comparison to Chester and Marcus Hook. Swarthmore is located in the same air basin, but not as close to large industrial sources.

Site Reports

BulletFirst Interim Report (12/96)(PDF)
BulletSecond Interim Report (4/99)(PDF)
BulletThird Interim Report (7/03)(PDF)

Site Data

Chester
BulletOrganics PA Lab (7/02-9/13)
BulletOrganics MD Lab (1/95-6/02)*
BulletHydrocarbons (3/95-6/02)**
BulletTSP/Metals (3/97-9/13)

Marcus Hook
BulletOrganics PA Lab (7/02-9/13)
BulletOrganics MD Lab (3/95-6/02)*
BulletHydrocarbons (3/95-6/02)**
BulletTSP/Metals (3/97-9/13)

Swarthmore
BulletOrganics PA Lab (7/02-9/13)
BulletOrganics MD Lab (1/97-6/02)*
BulletHydrocarbons (1/97-6/02)**
BulletTSP/Metals (3/97-9/13)

* Analysis switched to PA lab starting 7/02
** This type of analysis was discontinued 6/25/02.

 

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Site Specifics
Chester Site
Started: 1/10/95
Latitude: 39.8356
Longitude: -75.3728
Elevation: 7 ft
City: Chester
County: Delaware

Measured Parameters
BulletVolatile Organics
BulletTotal Particulates
BulletMetals
BulletWeather

Marcus Hook Site
Started: 4/2/95
Latitude: 39.8178
Longitude: -75.4142
Elevation: 23 ft
City: Marcus Hook
County: Delaware

Measured Parameters
BulletVolatile Organics
BulletTotal Particulates
BulletMetals

Swarthmore Site
Started: 1/22/97
Latitude: 39.8969
Longitude: -75.3539
Elevation: 213 ft
City: Swarthmore
County: Delaware

Measured Parameters
BulletVolatile Organics
BulletTotal Particulates
BulletMetals