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HGB - acronym for what?
Houston Galveston Brazoria region.
Consists of the 8 nonattainment counties in this region.
What counties are in the HGB region
Harris, Montgomery, Liberty, Chambers, Galveston, Brazoria, Fort Bend, Waller.
Harris county and the 7 contingent counties.
Congestion Mitigation and Air Quality Improvement Program
What does nonattainment mean?
That a region's air quality reaches unhealthy levels of ozone pollution multiple times a year.
What is Ozone
A condition that is produced through a photochemical reaction between NOx and VOCs and warm temperatures.
What is NOx
nitrogen oxide pollutants emitted from engines. it is greater in disesel engines
What is VOCs
Volitile Organic Compound pollutants emitted from engines. It is greater in gas powered engines
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