Acid Rain
United StatesPhysical EnvironmentAverage acidity of precipitation in the United States. Lower pH values represent greater acidity.
Geosystems: Intro to Physical Geography
A map shows the p H levels of acid rain in the U.S. States like Ohio and Pennsylvania have the lowest p H levels (4.50 to 4.59 p H, black). States like Arizona and Nevada show the highest p H levels (greater than or equals 5.30 p H, light yellow).
4.50–4.59 pH | 4.60–4.69 pH | 4.70–4.79 pH | 4.80–4.89 pH | 4.90–4.99 pH | 5.00–5.09 pH | 5.10–5.19 pH | 5.20–5.29 pH | ≥5.30 pH | Salt Marshes | Approximate Form and Extent of Outcrop of Carbonate Rocks | |
|---|---|---|---|---|---|---|---|---|---|---|---|
Arizona | 1.23% | 98.8% | |||||||||
Utah | 1.69% | 98.3% | |||||||||
District of Columbia | 100% | ||||||||||
Idaho | 4.63% | 95.4% | |||||||||
Vermont | 95.7% | 4.07% | |||||||||
Wyoming | 100% | ||||||||||
Montana | 9.26% | 90.7% | |||||||||
North Dakota | 100% | ||||||||||
Nebraska | 100% | ||||||||||
Missouri | 26.1% | 26.9% | 12.0% | 34.2% | |||||||
Oregon | 2.68% | 97.3% | |||||||||
New Mexico | 4.15% | 91.3% | |||||||||
Wisconsin | 4.01% | 46.8% | 27.3% | 21.3% | |||||||
Michigan | 24.0% | 10.0% | 4.73% | 13.3% | |||||||
Pennsylvania | 3.58% | 34.8% | 29.1% | 10.8% | |||||||
Colorado | 1.85% | 3.55% | 88.3% | ||||||||
Nevada | 100% | ||||||||||
Arkansas | 17.5% | 40.8% | 7.44% | 10.2% | |||||||
South Dakota | 100% | ||||||||||
Ohio | 5.07% | 9.56% | 59.7% | 23.0% | |||||||
Indiana | 12.8% | 4.37% | 8.75% | 5.18% | |||||||
Minnesota | 2.86% | 4.42% | 92.3% | ||||||||
Iowa | 1.50% | 98.5% | |||||||||
New Hampshire | 72.0% | 27.9% | 1.37% | ||||||||
Rhode Island | 2.00% | 3.88% | 2.01% | ||||||||
Washington | 23.4% | 70.9% | 0.132% | ||||||||
Maine | 17.3% | 69.8% | 10.8% | 0.322% | |||||||
Nova Scotia | 0.591% | ||||||||||
Delaware | 17.4% | 81.8% | 33.7% | ||||||||
Prince Edward Island | 1.22% | ||||||||||
Mississippi | 14.3% | 79.0% | 5.27% | 0.461% | |||||||
Louisiana | 41.6% | 42.5% | 8.80% | 4.48% | 2.23% | 0.106% | |||||
North Carolina | 1.35% | 37.2% | 1.72% | 9.88% | 0.191% | ||||||
New Brunswick | 0.488% | ||||||||||
Alabama | 84.6% | 13.4% | 0.174% | ||||||||
British Columbia | 0.160% | ||||||||||
New Jersey | 5.98% | 36.6% | 32.6% | 23.7% | 15.3% | ||||||
South Carolina | 33.6% | 64.2% | 2.08% | 6.81% | |||||||
Connecticut | 49.9% | 50.0% | 0.797% | ||||||||
Massachusetts | 98.2% | 3.30% | |||||||||
New York | 4.25% | 52.6% | 35.3% | 0.102% | |||||||
Maryland | 12.5% | 29.8% | 10.3% | 0.178% | |||||||
California | 99.7% | 0.156% | |||||||||
Florida | 1.32% | 13.8% | 25.9% | 1.33% | 8.54% | ||||||
Kentucky | 1.72% | 54.3% | 1.61% | 9.53% | 1.28% | ||||||
Virginia | 3.50% | 1.66% | 15.4% | 0.493% | 15.1% | ||||||
West Virginia | 7.63% | 45.0% | 12.8% | 8.92% | 17.2% | ||||||
Texas | 8.53% | 1.49% | 4.74% | 5.19% | 56.4% | 0.123% | 2.21% | ||||
Kansas | 100% | 8.84% | |||||||||
Georgia | 7.01% | 3.21% | 2.51% | 3.47% | 2.72% | 5.65% | |||||
Oklahoma | 2.73% | 5.70% | 91.6% | 7.62% | |||||||
Tennessee | 5.63% | 19.5% | 14.5% | 3.55% | 0.744% | ||||||
Illinois | 39.9% | 27.0% | 15.0% | 3.08% | 9.73% | 4.93% | |||||
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