Cooper Environmental provides innovative solutions for evaluating multivariate pollutant data sets collected across a network of ambient monitoring stations. A variety of statistical and graphical tools are used to gauge the spatial and temporal variability of the pollutants over the geographical region of interest. This allows for refined understanding of the various meteorological, topographical, and source emission patterns that facilitate identification of local source locations influencing pollutant variability. Thorough understanding of pollutant variability enables state and federal agencies in effective management of air quality. This also prevents exposure miss-classification in epidemiological studies conducted in support of health-based standards.