TexAQS2000: 5-Minute Air Quality Measurements from 85 Texas Stations, 2000

August and September 2000 air quality measurements collected at 85 continuous ambient monitoring stations in Texas during the TexAQS2000 study. The dataset contains 5-minute readings for pollutants like CO, SO2, NOx, ozone, PM2.5, and meteorological variables including wind, temperature, and humidity. It was produced by the Texas Commission on Environmental Quality and partners under the NARSTO program.

Use Cases

• Modeling ozone formation and photochemical smog based on concurrent NOx, ozone, and meteorological measurements.
• Analyzing particulate matter (PM2.5) correlations with gaseous pollutants and weather conditions.
• Studying spatial and temporal patterns of sulfur dioxide and hydrogen sulfide emissions.
• Calibrating or validating air quality sensor networks using high-frequency, multi-parameter station data.

Strengths

• High temporal resolution with 5-minute measurement intervals.
• Multi-parameter coverage across 85 monitoring stations.
• Includes both pollutant concentrations (CO, SO2, NOx, ozone, PM2.5) and meteorological variables.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is from a specific two-month period in 2000, limiting analysis of long-term trends.
• The primary site information is in a separate companion file, not within the 85 data files.

Provenance

Source

Texas Commission on Environmental Quality (TCEQ), local governments, and private networks under the NARSTO program.

Collection Method

Continuous ambient monitoring from fixed station instruments.

Time Range

August and September 2000.

Freshness

Last updated 2026-03-12 23:31:20.520983; freshness should be verified.

Geography

Texas, United States.