NARSTO EPA Supersite Fresno: PM2.5 Organic and Elemental Carbon Measurements, 2000-2005

NARSTO_EPA_SS_FRESNO_PM25_OC_EC contains particulate matter measurements from the EPA's Fresno Supersite. The dataset includes hourly measurements of PM2.5 organic and elemental carbon from two continuous monitors operated from January 13, 2000 to March 31, 2005. It was produced under the EPA PM Supersites Program, with data archived by the National Aeronautics and Space Administration.

Use Cases

• Analyzing temporal trends in urban carbonaceous aerosols based on continuous hourly measurements.
• Modeling source-receptor relationships for particulate matter based on data from a characterized urban site.
• Comparing performance of different carbon measurement methods (R&P 5400C vs. Sunset Carbon Analyzer).
• Studying the impact of local traffic and land use on air quality based on the site's described location.

Strengths

• Data collection spans over five years, from January 2000 to March 2005.
• Measurements were taken hourly, providing a high temporal resolution for analysis.
• Site location and surrounding environment are described in detail, providing context for the measurements.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic and temporal bias inherent to a single urban monitoring site.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Measurements from a continuous Rupprecht and Patashnick (R&P) 5400C carbon monitor and a Sunset Carbon Analyzer.

Time Range

January 13, 2000 to March 31, 2005

Freshness

Last updated 2026-03-12 23:31:45.626380; freshness should be verified.

Geography

Fresno, California, USA. Site located at 3425 First Street, approximately 1 km north of the downtown commercial district.