Search Results for the EPA National Library Catalog

Items Found: 20
Showing: Items 1 - 20
Your Search: (SUBJECT=Spatial variations)

Select Item Title Year Published
A field study to compare performance of stainless steel research monitoring wells with existing on-farm drinking water wells in measuring pesticide and nitrate concentrations / 1998
Air Quality Modeling at Neighborhood Scales to Improve Human Exposure Assessment. 2000
Air Quality Modeling of PM and Air Toxics at Neighborhood Scales. 2000
Application of the electromagnetic borehole flowmeter 1998
Atmospheric CH4 Seasonal Cycles and Latitude Gradient from the NOAA CMDL Cooperative Air Sampling Network. 1996
Bioindicators for assessing ecological integrity of prairie wetlands / 1996
CASTNet : National Dry Deposition Network 1990-1992 status report / 1995
CMAQ Modeling for Air Toxics at Fine Scales: A Prototype Study. 2004
Community Scale Air Toxics Modeling with CMAQ. 2003
Comparison of Sulfur Measurements from a Regional Fine Particle Network with Concurrent Acid Modes Network Results. 1994
Conceptual Model of the Galveston Bay Ecosystem. 1993
Driving pattern variability and impacts on vehicle carbon monoxide emissions / 1995
Evaluation of Long-Term Sulfur Deposition Models. 1989
Integrating Travel Demand Forecasting Models with GIS to Estimate Hot Stabilized Mobile Source Emissions. 1997
Rotated Principal Component Analysis of Total Column Ozone Obtained from TOMS for 1984-1989. 1996
Spatiotemporal Variability of Total Column Ozone Derived from TOMS Using Rotated Principal Component Analysis. 1996
Statistical issues in environmental monitoring and assessment of anthropogenic pollution / 1997
The Clean Air Act ozone design value study : final report. 1994
U.S. Visibility Trends, 1960-1992. 1994
Using a Dynamic GIS to Visualize and Analyze Mobile Source Emissions. 1996

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