Los Angeles County, CA

ZIP 90502

In ZIP 90502, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Torrance-City, Water Dept. meets every EPA legal limit; 14 contaminants are above health goals, led by lead at 75× California’s Public Health Goal.
• Nearest Superfund site: Montrose Chemical Corp., 1.2 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Torrance Refining Co LLC (34%), mostly cobalt compounds.
• Fine particles (PM2.5) average 10.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 250,208 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 90502

• Superfund sites nearbyF
• Factories and industrial sitesF
• Oil and gas wellsF
• Parks and nature nearbyF
• Air qualityF
• Drinking water qualityD to F
• Pesticide useB
• Neighborhood health statusA to B
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsB to D

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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