Spatial and temporal variability of ambient air toxics data
Jawad S Touma1, William M Cox, Joseph A Tikvart
1National Oceanic and Atmospheric Administration/Atmospheric Sciences Modeling Division, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA. Touma.Joe@epa.gov
Journal of the Air & Waste Management Association (1995)
|January 2, 2007
Summary
This study analyzes spatial and temporal patterns of air toxics pollutants nationwide from 1990-2003. Findings document pollutant variability to aid air pollution control program assessment.
Area of Science:
- Environmental Science
- Atmospheric Chemistry
- Public Health
Background:
- Air toxics pollutants pose significant health risks.
- Understanding pollutant variability is crucial for effective air quality management.
- National-level data on air toxics is essential for policy development.
Purpose of the Study:
- To summarize the spatial and temporal variability of selected air toxics pollutants.
- To provide systematic documentation of air toxics information for assessing air pollution control progress.
- To characterize pollutant concentrations within and between cities, and their diurnal, seasonal, and multiyear trends.
Main Methods:
- National-scale data collection on air toxics pollutants.
- Analysis of spatial variability (within-city and between-city).
- Analysis of temporal variability (diurnal, seasonal, multiyear trends).
Main Results:
- Characterized spatial variability of air toxics concentrations across different urban settings.
- Documented diurnal, seasonal, and multiyear trends in air toxics pollutant levels.
- Established a baseline understanding of air toxics variability for the 1990-2003 period.
Conclusions:
- Systematic documentation of air toxics variability is vital for evaluating air pollution control effectiveness.
- The findings provide a foundation for targeted air quality management strategies.
- Further research should continue to monitor and analyze air toxics trends.
