The Agency for Toxic Substances and Disease Registry has asked the Arizona Department of Health Services, Office of Environmental Health, to conduct a health assessment for the off-site residential area located adjacent to the Tucson Industrial Center, also known as the 3 Hangars site, within the larger Tucson International Airport Area Superfund site, in Tucson, Arizona. Previous investigations found that elevated levels of polychlorinated biphenyls (PCBs) in the drainage areas at the TIC site had migrated off-site into residential areas presenting a health threat to residents. The purpose of this Public Health Assessment is to evaluate if a public health hazard still exists since the remediation activities have been conducted at the off-site El Vado residential area. ADHS concludes that no current public health hazard exists as a result of ingestion, dermal, or inhalation exposures by residents, children, or transients to the post remediated soil in the residential areas on El Vado Road. Replacement of the top soil with certified clean soil has removed all contact with the soil containing PCBs eliminating any future public health hazard.

A resident of Wickenburg, Arizona and her husband reported experiencing some adverse health effects that she felt may be attributed to a recent pesticide application to her home. The family requested the Arizona Department of Health Services to evaluate whether the remaining levels of pesticides present in her home would cause any health effects. The resident reported to ADHS that their symptoms continued to worsen over time, and that the chemical continued to pool in their house even after being wiped up several times, so that she and her husband vacated the house. The couple underwent extensive testing, and are receiving oxygen treatment to alleviate their symptoms. No medical records have been submitted to ADHS for review, and it is difficult to conclusively analyze health outcome information as it has been self reported.