Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Air Districts are designated pursuant to federal and state statute. Air districts identify the local and regional authorities who have primary responsibility for control of air pollution from sources that are not motor vehicles. (Motor vehicles are the responsibility of the state Air Resources Board.)</SPAN></P></DIV></DIV></DIV>
Service Item Id: 06cf9d9532a34f2cb93dc50094dc7f7e
Copyright Text: Originally developed by Teale Data Center GIS Lab; updated by California Air Resources Board, Planning and Technical Support Division.
Description: State area designations reflect data from the prior three-year period as compared with the State ambient air quality standard for each pollutant. They are consistent with the designation criteria contained in the California Code of Regulations, title 17, sections 70300 through 70306, and Appendices 1 through 3, thereof.
The State PM10 designations layer is a polygon coverage showing area designations as required under Health and Safety Code section 39608. The designations are consistent with the criteria established in the California Code of Regulations, title 17, sections 70300 through 70306, and Appendices 1 through 3, thereof. There are three possible designation categories for PM10: attainment, nonattainment, and unclassified. The State area designations are reviewed annually and approved by the State Air Resources Board.
Description: State area designations reflect data from the prior three-year period as compared with the State ambient air quality standard for each pollutant. They are consistent with the designation criteria contained in the California Code of Regulations, title 17, sections 70300 through 70306, and Appendices 1 through 3, thereof.
The State PM2.5 designations layer is a polygon coverage showing area designations as required under Health and Safety Code section 39608. The designations are consistent with the criteria established in the California Code of Regulations, title 17, sections 70300 through 70306, and Appendices 1 through 3, thereof. There are three possible designation categories: attainment, nonattainment, and unclassified. The State area designations are reviewed annually and approved by the State Air Resources Board.
Description: State area designations reflect data from the prior three-year period as compared with the State ambient air quality standard for each pollutant. They are consistent with the designation criteria contained in the California Code of Regulations, title 17, sections 70300 through 70306, and Appendices 1 through 3, thereof.
The State carbon monoxide designations layer is a polygon coverage showing area designations as required under Health and Safety Code section 39608. The designations are consistent with the criteria established in the California Code of Regulations, title 17, sections 70300 through 70306, and Appendices 1 through 3, thereof. There are four possible designation categories: attainment, nonattainment, nonattainment-transitional, and unclassified. In addition, CO nonattainment areas have been assigned a classification, commensurate with the severity of their air quality problem, under Health and Safety Code section 40921.5. The State area designations are reviewed annually and approved by the State Air Resources Board.
Description: State area designations reflect data from the prior three-year period as compared with the State ambient air quality standard for each pollutant. They are consistent with the designation criteria contained in the California Code of Regulations, title 17, sections 70300 through 70306, and Appendices 1 through 3, thereof.
The State sulfates designations layer is a polygon coverage showing area designations as required under Health and Safety Code section 39608. The designations are consistent with the criteria established in the California Code of Regulations, title 17, sections 70300 through 70306, and Appendices 1 through 3, thereof. There are three possible designation categories: attainment, nonattainment, and unclassified. The State area designations are reviewed annually and approved by the State Air Resources Board.
Description: Summary
State area designations reflect data from the prior three-year period as compared with the State ambient air quality standard for each pollutant. They are consistent with the designation criteria contained in the California Code of Regulations, title 17, sections 70300 through 70306, and Appendices 1 through 3, thereof.
The State hydrogen sulfide designations layer is a polygon coverage showing area designations as required under Health and Safety Code section 39608. The designations are consistent with the criteria established in the California Code of Regulations, title 17, sections 70300 through 70306, and Appendices 1 through 3, thereof. There are four possible designation categories: attainment, nonattainment, nonattainment-transitional, and unclassified. The State area designations are reviewed annually and approved by the State Air Resources Board.