TexAQS2000: Size-specific Particulate Matter Mass Concentrations from Houston

NARSTO and EPA collected size-segregated particulate mass data using a MOUDI sampler during the 2000 Texas Air Quality Study. Daily sampling occurred from August 17 to September 13, 2000, at two monitoring locations in the Houston area. The study aimed to characterize fine particulate matter composition and sources to support health effects research.

Use Cases

• Modeling particulate matter source contributions based on size-segregated mass data.
• Analyzing temporal trends in fine particulate matter concentrations during a specific study period.
• Correlating particulate size fractions with other air quality measurements mentioned in the study goals.
• Supporting exposure assessment studies for health effects research as described in the dataset's objectives.

Strengths

• Data collected during a focused, month-long intensive field study (August 17 to September 13, 2000).
• Uses a specific, named instrument (MSP Corporation MOUDI model 100) for measurement.
• Part of a coordinated EPA Supersite program with defined goals for characterization and method testing.

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 the specific study period and two Houston locations.

Provenance

Source

National Aeronautics and Space Administration (NASA), from the NARSTO/EPA Supersite program.

Collection Method

Collected with a micro-orifice uniform deposit impactor (MOUDI) sampler at monitoring sites.

Time Range

August 17, 2000 to September 13, 2000

Freshness

Last updated 2026-03-12 23:58:54.008375; freshness should be verified

Geography

Houston, Texas, USA (Houston Regional Monitoring Site 3 and LaPorte Houston Supersite)