San Juan Municipio, PR
ZIP 00918
In ZIP 00918, 2 of the 12 things we check have at least one part graded D or F.
- Nearest Superfund site: Naval Security Group Activity, 7.6 miles away.
- Largest share of modeled toxic air from industry: Super Asphalt Canovanas Plant (50%), mostly polycyclic aromatic compounds.
- Fine particles (PM2.5) average 8.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
Grades for ZIP 00918
- Superfund sites nearbyA
- Factories and industrial sitesA to D
- Oil and gas wellsA
- Air qualityD to F
- Past wildfire impactsA
- Past flood impactsC
Based on 12 census tracts · compiled September 10, 2026 · how each grade works and its sources
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