NARSTO EPA Supersite: Los Angeles PM2.5 Mass Concentration Data, 2000-2002

PM2.5 mass concentration data was collected at four sites in Los Angeles County between December 2000 and September 2002. The data was gathered using Tapered-Element Oscillating Microbalance (TEOM) instruments, with measurements taken every 30 minutes or hourly. This dataset was produced under the U.S. EPA Particulate Matter Super Sites Program and is hosted by the National Aeronautics and Space Administration.

Use Cases

• Analyze temporal trends in fine particulate matter (PM2.5) concentration based on the 30-minute and hourly measurement intervals.
• Compare air quality measurements between different monitoring sites (Downey, Riverside, Claremont, Rubidoux) in the Los Angeles Basin.
• Evaluate the performance of standard versus prototype TEOM instruments based on the differential TEOM data mentioned.
• Model source-receptor relationships for particulate matter based on the program's stated research objectives.

Strengths

• Data collection spans a defined period from December 2000 to September 2002.
• Measurements were taken at four distinct geographic locations within Los Angeles County.
• Data originates from a coordinated research program (EPA Super Sites) with clear scientific objectives.

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 temporal bias inherent to the specific 2000-2002 collection period.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Collected using Tapered-Element Oscillating Microbalance (TEOM) instruments in mobile trailers.

Time Range

December 2000 to September 2002

Freshness

Last updated 2026-03-12 23:58:41.582567; freshness should be verified.

Geography

Los Angeles County, California (Downey, Riverside, Claremont, Rubidoux)