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		Emission Inventory Data
		Particulate Matter
	>	Ozone Exceedence Maps
		Backward Trajectories
		Ozone Animations
		Literature and Reports

These color-keyed slides, courtesy of the Houston Regional Monitoring Network, show the number of hours ozone levels in the Houston/Galveston area exceeded the one-hour ozone standard in the years 1985 through 1988.

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