Humacao Municipio, PR

ZIP 00791

In ZIP 00791, 1 of the 12 things we check have at least one part graded D or F.

• Nearest Superfund site: Juncos Landfill, 4.4 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Aes Puerto Rico LP (34%), mostly polycyclic aromatic compounds.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 00791

• Superfund sites nearbyA to D
• Factories and industrial sitesB to C
• Oil and gas wellsA
• Air qualityB to C
• Past wildfire impactsA
• Past flood impactsC

Based on 16 census tracts · compiled September 10, 2026 · how each grade works and its sources

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