† HAA5 is often a contaminant team that includes monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid and dibromoacetic acid. HAA9 is actually a contaminant team that includes the chemical compounds in HAA5 and bromochloroacetic acid, bromodichloroacetic acid, chlorodibromoacetic acid and tribromoacetic acid. Permittee to address the highest watershed... https://environmental-engineering93108.blogs100.com/28544057/not-known-details-about-local-air-quality-in-irvine