Harris County, TX

ZIP 77072

In ZIP 77072, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Bissonnet Mud meets every EPA legal limit; 9 contaminants are above health goals, led by arsenic at 946× California’s Public Health Goal.
• Nearest Superfund site: Crystal Chemical Co., 1.3 miles away.
• Largest share of modeled toxic air from industry: Equistar Chemicals Bayport Chemicals Plant (42%), mostly ethylene oxide.
• Fine particles (PM2.5) average 9.1 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 77072

• Superfund sites nearbyD to F
• Factories and industrial sitesD to F
• Oil and gas wellsD
• Parks and nature nearbyB to C
• Air qualityF
• Drinking water qualityC
• Pesticide useA to B
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsD
• Noise levelsA to C
• Radiation signalsB to C

Based on 17 census tracts · compiled October 25, 2026 · how each grade works and its sources

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