Pima County, AZ

ZIP 85709

In ZIP 85709, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Tucson City Of meets every EPA legal limit; 7 contaminants are above health goals, led by arsenic at 706× California’s Public Health Goal.
• Nearest Superfund site: Tucson International Airport Area, 2.8 miles away.
• Largest share of modeled toxic air from industry: Swan Rd. Asphalt Plant (50%), mostly polycyclic aromatic compounds.
• Fine particles (PM2.5) average 8.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 77,498 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 85709

• Superfund sites nearbyF
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityD
• Drinking water qualityC
• Pesticide useB
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsD
• Radiation signalsD

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

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