Air Quality Metric.One of the measures typically used for air pollution. These are daily values
calculated directly from daily observations, or through various mathematical manipulations of
hourly observations. Typical ozone metrics include the highest hourly observations during the
course of each day, such as the average of all twenty four hourly observations. These daily
values may be summarized to characterize seasonal and annual values.
Air Quality Model.Air quality models are valuable air quality management tools. Models are
mathematical descriptions of pollution transport, dispersion, and related physical and chemical
processes in the atmosphere. Air quality models estimate the air pollutant concentration at many
locations, which are referred to as receptors, or over a spatial area that has been divided into
uniform grid squares. The number of receptors or grid-cells in a model far exceeds the number of
monitors one could typically afford to deploy in a monitoring study. Therefore, models provide a
cost-effective way to analyze pollutant impacts over a wide spatial area where factors such as
meteorology, topography, and emissions from both local and remote sources could be important.
Some examples include CMAQ and CAMx.
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castellano: DISPER CUSTIC DESCAR RADIA italiano:
deutsch: DIS CUS DES RAD
castellano: DIS CUS DES RAD english: DIS CUS DES RAD
português: DIS CUS DES RAD italiano: DIS CUS DES RAD
français: DIS CUS DES RAD