Under the Air Toxics “Hot Spots” Information and Assessment Act, the operator of a facility must provide notice to all exposed persons if, in the judgment of the SCAQMD, the facility’s health risks assessment indicates there is a significant health risk associated with air toxic emissions from the facility. The SCAQMD public notification thresholds are as follows:
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Cancer risk > 10 in one million, or
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Acute hazard index (HI) > 1.0, or
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Chronic HI > 1. 0
The notice is made in accordance with procedures specified by the SCAQMD, which are as follows:
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Identify the impact area, that is, the area above the notification thresholds;
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Distribute public notice materials to all addresses and to parents of children attending school in the area of impact;
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Conduct a public meeting; and
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Distribute copies of the facility’s approved HRA to the public library closest to the facility and all school libraries in the area of impact.
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