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 | Areas of serious concern | Areas of some concern | Stable terrain | Nonvegetated land | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alaska | 0.154% | ||||||||||||
Arizona | 1.23% | 98.8% | 30.7% | 40.9% | 28.4% | ||||||||
Utah | 1.69% | 98.3% | 13.6% | 86.4% | |||||||||
Yukon | 100% | ||||||||||||
Northwest Territories | 3.06% | ||||||||||||
District of Columbia | 100% | 100% | |||||||||||
Florida | 1.32% | 13.8% | 25.9% | 99.0% | |||||||||
Idaho | 4.63% | 95.4% | 12.7% | 87.3% | |||||||||
New Hampshire | 72.0% | 27.9% | 100% | ||||||||||
Rhode Island | 2.00% | 3.88% | 95.0% | ||||||||||
Vermont | 95.7% | 4.07% | 2.39% | 97.6% | |||||||||
Washington | 23.4% | 70.9% | 12.5% | 11.9% | 5.51% | ||||||||
Wyoming | 100% | 3.04% | 97.0% | ||||||||||
Nunavut | 0.587% | ||||||||||||
Montana | 9.26% | 90.7% | 5.14% | 83.8% | |||||||||
Maine | 17.3% | 69.8% | 10.8% | 0.171% | 80.4% | ||||||||
North Dakota | 100% | 92.0% | 8.03% | ||||||||||
Kentucky | 1.72% | 54.3% | 1.61% | 9.53% | 1.37% | 98.6% | |||||||
Nova Scotia | 18.4% | ||||||||||||
Virginia | 3.50% | 1.66% | 15.4% | 25.7% | 74.1% | ||||||||
Delaware | 17.4% | 81.8% | 99.3% | ||||||||||
Prince Edward Island | 96.6% | ||||||||||||
Saskatchewan | 11.6% | 38.7% | 49.7% | ||||||||||
Mississippi | 14.3% | 79.0% | 5.27% | 18.4% | 64.8% | 16.8% | |||||||
West Virginia | 7.63% | 45.0% | 12.8% | 8.92% | 26.7% | 73.3% | |||||||
Nebraska | 100% | 94.5% | 5.51% | ||||||||||
Texas | 8.53% | 1.49% | 4.74% | 5.19% | 56.4% | 13.8% | 77.2% | 8.74% | |||||
Missouri | 26.1% | 26.9% | 12.0% | 34.2% | 53.7% | 46.3% | |||||||
Louisiana | 41.6% | 42.5% | 8.80% | 4.48% | 2.23% | 0.161% | 18.9% | 29.5% | |||||
Hawaii | 1.16% | ||||||||||||
North Carolina | 1.35% | 37.2% | 1.72% | 9.88% | 99.4% | ||||||||
Oregon | 2.68% | 97.3% | 0.146% | 13.9% | 59.9% | ||||||||
New Brunswick | 35.3% | 63.9% | |||||||||||
Alabama | 84.6% | 13.4% | 73.2% | 26.7% | |||||||||
New Mexico | 4.15% | 91.3% | 5.86% | 92.2% | 1.91% | ||||||||
Kansas | 100% | 64.1% | 35.9% | ||||||||||
Wisconsin | 4.01% | 46.8% | 27.3% | 21.3% | 41.4% | 38.2% | 20.4% | ||||||
British Columbia | 3.99% | 0.242% | |||||||||||
Newfoundland and Labrador | 24.7% | ||||||||||||
New Jersey | 5.98% | 36.6% | 32.6% | 23.7% | 99.1% | ||||||||
South Carolina | 33.6% | 64.2% | 2.08% | 90.8% | 9.02% | ||||||||
Michigan | 24.0% | 10.0% | 4.73% | 13.3% | 70.3% | 29.6% | |||||||
Alberta | 3.89% | 14.0% | 65.8% | ||||||||||
Connecticut | 49.9% | 50.0% | 1.86% | 98.1% | |||||||||
Pennsylvania | 3.58% | 34.8% | 29.1% | 10.8% | 12.1% | 87.9% | |||||||
Colorado | 1.85% | 3.55% | 88.3% | 35.4% | 64.6% | ||||||||
Nevada | 100% | 54.5% | 39.8% | 0.655% | |||||||||
Massachusetts | 98.2% | 0.575% | |||||||||||
Georgia | 7.01% | 3.21% | 2.51% | 3.47% | 64.0% | 35.9% | |||||||
New York | 4.25% | 52.6% | 35.3% | 2.49% | 25.0% | ||||||||
Maryland | 12.5% | 29.8% | 10.3% | 23.5% | 74.6% | ||||||||
Québec | 0.218% | 94.2% | |||||||||||
Manitoba | 5.67% | 12.3% | 81.9% | ||||||||||
Oklahoma | 2.73% | 5.70% | 91.6% | 31.0% | 69.0% | ||||||||
Tennessee | 5.63% | 19.5% | 14.5% | 3.55% | 4.84% | 95.2% | |||||||
Ontario | 8.22% | 91.7% | |||||||||||
California | 99.7% | 10.6% | 60.7% | 22.9% | 5.57% | ||||||||
Arkansas | 17.5% | 40.8% | 7.44% | 10.2% | 31.1% | 68.9% | |||||||
South Dakota | 100% | 56.9% | 43.1% | ||||||||||
Ohio | 5.07% | 9.56% | 59.7% | 23.0% | 100% | ||||||||
Indiana | 12.8% | 4.37% | 8.75% | 5.18% | 2.05% | 97.9% | |||||||
Minnesota | 2.86% | 4.42% | 92.3% | 26.5% | 61.6% | 11.9% | |||||||
Iowa | 1.50% | 98.5% | 99.1% | 0.440% | |||||||||
Illinois | 39.9% | 27.0% | 15.0% | 3.08% | 9.73% | 96.6% | 3.35% | ||||||
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