Anne Arundel County, MD

ZIP 21403

In ZIP 21403, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Annapolis meets every EPA legal limit; 3 contaminants are above health goals, led by dibromochloromethane at 5.6× California’s Public Health Goal.
• Nearest Superfund site: Middletown Road Dump, 4.7 miles away.
• Largest share of modeled toxic air from industry: Elite Spice Inc. (62%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 34,792 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 21403

• Superfund sites nearbyA
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyB to D
• Air qualityC to D
• Drinking water qualityA to B
• Pesticide useB to D
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsB

Based on 10 census tracts · compiled October 25, 2026 · how each grade works and its sources

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