Harris County, TX

ZIP 77046

In ZIP 77046, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Houston meets every EPA legal limit; 15 contaminants are above health goals, led by arsenic at 878× California’s Public Health Goal.
• Nearest Superfund site: Sol Lynn/industrial Transformers, 4.6 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Equistar Chemicals Bayport Chemicals Plant (33%), mostly ethylene oxide.
• Fine particles (PM2.5) average 9.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 38,374 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 77046

• Superfund sites nearbyD
• Factories and industrial sitesF
• Oil and gas wellsD
• Parks and nature nearbyC to D
• Air qualityF
• Drinking water qualityC
• Pesticide useA
• Neighborhood health statusA
• Past wildfire impactsA
• Past flood impactsC to D
• Noise levelsA to D
• Radiation signalsB

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…