Hillsborough, FL

ZIP 33573

In ZIP 33573, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hcwrd/South-Central has 1 contaminant at or over an EPA legal limit; 13 contaminants are above health goals, led by pfos at 4.6× California’s Public Health Goal.
• Nearest Superfund site: Jj Seifert Machine, 6.3 miles away.
• Largest share of modeled toxic air from industry: Air Products & Chemicals Inc. - Port Manatee (50%), mostly chromium compounds.
• Fine particles (PM2.5) average 8.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 2,111,467 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 33573

• Superfund sites nearbyA to C
• Factories and industrial sitesB to C
• Oil and gas wellsA
• Parks and nature nearbyC to F
• Air qualityC to D
• Drinking water qualityC to F
• Pesticide useD to F
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsB

Based on 8 census tracts · compiled September 10, 2026 · how each grade works and its sources

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