The Bay Area Air Quality Management District, in cooperation with the California Air Resources Board and the US Environmental Protection Agency, has established an ambient air dioxin monitoring network.

The sampling sites, currently operating on a quarterly sampling schedule, are:

• Ft Cronkhite
  (site courtesy of GGNRA) San Jose - 4th Street
• Richmond
  7th Street & Hensley Street
• San Francisco
  Arkansas Street
• Oakland
  68th & International

There are plans to add the following sampling sites in the future:

Crockett - Pomona Ave
Livermore - Rincon Ave.

Once samples are collected, extensive laboratory analysis is required to measure the amount of dioxins sampled. Sampling data will then be available once all the required quality assurance and quality control procedures have been verified.