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Start Over You searched for: Year 2003 Remove constraint Year: 2003 Resource Type Polygon data Remove constraint Resource Type: Polygon data Subject Atmospheric ozone Remove constraint Subject: Atmospheric ozone

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2003. California Air Resources Board. Planning and Technical Support Division and Stephen P. Teale Data Center (Calif.). This polygon shapefile contains federal one-hour ozone area designations and their classifications as per 40CFR81.305, part of the National Ambient... California. Air Resources Board.