NARSTO EPA Supersite Fresno: Particle-bound Polycyclic Aromatic Compound Data, 1999-2006

Seven years of continuous, five-minute averaged measurements of particle-bound polycyclic aromatic compounds (PAC) were collected at the Fresno EPA Supersite from September 30, 1999 to December 31, 2006. This data was gathered by a Photoelectric Aerosol Sensor (PAS) monitor as part of the NARSTO and EPA PM Supersites Program to characterize particulate matter. The monitoring site was located at 3425 First Street, approximately 1 km north of downtown Fresno, in an area with moderate traffic and mixed residential and commercial surroundings.

Use Cases

• Analyzing long-term trends in urban particulate organic pollution based on the seven-year measurement period.
• Correlating PAC concentrations with local traffic and land use patterns based on the described site location and surroundings.
• Evaluating continuous monitoring methods for aerosols based on the use of a Photoelectric Aerosol Sensor (PAS).
• Supporting health effects research on suspended particulate matter (PM) based on the stated program goals.

Strengths

• Provides a long-term temporal record with measurements spanning over seven years, from 1999 to 2006.
• Data was collected with high temporal resolution, averaged over five-minute periods.
• Collection was part of a coordinated multi-site EPA research program designed to address specific scientific priorities.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The sample inlet had no specified particle size separation, which may affect the interpretation of particle measurements.
• Row count is unknown, which may limit suitability assessment for some analytical tasks.

Provenance

Source

National Aeronautics and Space Administration (NASA), via the NARSTO and EPA PM Supersites Program.

Collection Method

Continuous ambient sampling using a Photoelectric Aerosol Sensor (PAS) monitor.

Time Range

September 30, 1999 to December 31, 2006.

Freshness

Last updated 2026-03-12 23:59:26.838288; freshness should be verified.

Geography

Fresno, California, USA. Specific site: 3425 First Street.