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 | No data | Arid and low water use | Low (<10%) | Low-medium (10-20%) | Medium-high (20-40%) | High (40-80%) | Extremely high (>80%) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alaska | 0.132% | 87.9% | 0.193% | 0.154% | 1.32% | |||||||||||
Arizona | 1.23% | 98.8% | 3.34% | 9.37% | 6.97% | 0.448% | 4.52% | |||||||||
Utah | 1.69% | 98.3% | 20.8% | 13.7% | 0.313% | 0.420% | 49.5% | |||||||||
Yukon | 0.923% | 99.0% | ||||||||||||||
Northwest Territories | 0.342% | 3.62% | ||||||||||||||
District of Columbia | 100% | 100% | ||||||||||||||
Florida | 1.32% | 13.8% | 25.9% | 10.4% | 12.0% | 0.279% | 0.266% | 0.590% | ||||||||
Idaho | 4.63% | 95.4% | 0.772% | 13.8% | 28.4% | 8.83% | 44.9% | |||||||||
New Hampshire | 72.0% | 27.9% | 17.2% | 33.7% | 40.5% | 8.46% | ||||||||||
Rhode Island | 2.00% | 3.88% | 0.183% | 86.5% | 6.09% | |||||||||||
Vermont | 95.7% | 4.07% | 7.27% | 88.3% | 4.41% | |||||||||||
Washington | 23.4% | 70.9% | 72.6% | 3.37% | 5.42% | 0.287% | 6.53% | |||||||||
Wyoming | 100% | 21.7% | 0.541% | 70.3% | ||||||||||||
Nunavut | 0.979% | 18.2% | ||||||||||||||
Montana | 9.26% | 90.7% | 28.7% | 2.60% | 14.6% | 5.24% | 35.2% | |||||||||
Maine | 17.3% | 69.8% | 10.8% | 94.9% | 2.65% | 0.228% | 0.817% | |||||||||
North Dakota | 100% | 7.38% | 3.22% | 4.45% | 0.249% | 9.67% | 36.7% | |||||||||
Kentucky | 1.72% | 54.3% | 1.61% | 9.53% | 76.6% | 17.7% | 5.68% | |||||||||
Nova Scotia | 0.182% | 80.1% | ||||||||||||||
Virginia | 3.50% | 1.66% | 15.4% | 11.9% | 0.775% | 16.4% | 1.64% | |||||||||
Delaware | 17.4% | 81.8% | 0.105% | 37.7% | 61.1% | |||||||||||
Prince Edward Island | 98.5% | |||||||||||||||
Saskatchewan | 4.25% | 59.9% | 2.62% | 2.54% | 2.67% | 0.868% | ||||||||||
Mississippi | 14.3% | 79.0% | 5.27% | 74.5% | 1.57% | 23.9% | ||||||||||
West Virginia | 7.63% | 45.0% | 12.8% | 8.92% | 63.6% | 17.6% | 14.6% | |||||||||
Nebraska | 100% | 0.605% | 3.54% | 22.3% | 73.5% | |||||||||||
Texas | 8.53% | 1.49% | 4.74% | 5.19% | 56.4% | 4.07% | 3.41% | 2.84% | 1.94% | 22.5% | 2.71% | |||||
Missouri | 26.1% | 26.9% | 12.0% | 34.2% | 45.5% | 14.9% | 0.131% | 5.37% | ||||||||
Louisiana | 41.6% | 42.5% | 8.80% | 4.48% | 2.23% | 54.5% | 20.6% | 5.75% | ||||||||
Hawaii | 7.82% | |||||||||||||||
North Carolina | 1.35% | 37.2% | 1.72% | 9.88% | 0.116% | 12.2% | 54.7% | 3.14% | 0.982% | |||||||
Oregon | 2.68% | 97.3% | 14.3% | 48.2% | 11.8% | 4.82% | 0.772% | 0.847% | ||||||||
New Brunswick | 99.5% | |||||||||||||||
Alabama | 84.6% | 13.4% | 92.6% | 5.45% | 0.987% | |||||||||||
New Mexico | 4.15% | 91.3% | 30.3% | 0.128% | 7.32% | 21.7% | ||||||||||
Kansas | 100% | 0.176% | 1.82% | 13.8% | 68.4% | |||||||||||
Wisconsin | 4.01% | 46.8% | 27.3% | 21.3% | 5.67% | 25.0% | 40.8% | 9.68% | ||||||||
British Columbia | 92.0% | 1.55% | 0.285% | |||||||||||||
Newfoundland and Labrador | 74.5% | |||||||||||||||
New Jersey | 5.98% | 36.6% | 32.6% | 23.7% | 0.162% | 3.07% | 94.0% | 1.76% | ||||||||
South Carolina | 33.6% | 64.2% | 2.08% | 0.748% | 24.6% | 36.2% | ||||||||||
Michigan | 24.0% | 10.0% | 4.73% | 13.3% | 56.0% | 3.00% | 4.63% | 9.70% | ||||||||
Alberta | 3.52% | 56.8% | 0.267% | 4.01% | 3.67% | 11.4% | ||||||||||
Connecticut | 49.9% | 50.0% | 0.460% | 29.6% | 24.9% | 23.8% | 1.35% | |||||||||
Pennsylvania | 3.58% | 34.8% | 29.1% | 10.8% | 1.42% | 27.8% | 49.9% | 3.96% | ||||||||
Colorado | 1.85% | 3.55% | 88.3% | 0.795% | 9.40% | 85.2% | ||||||||||
Nevada | 100% | 8.21% | 0.731% | 1.40% | 0.413% | 2.80% | 24.0% | |||||||||
Massachusetts | 98.2% | 0.206% | 0.166% | 33.6% | 8.30% | 30.7% | ||||||||||
Georgia | 7.01% | 3.21% | 2.51% | 3.47% | 8.71% | 47.0% | 37.9% | |||||||||
New York | 4.25% | 52.6% | 35.3% | 25.4% | 5.89% | 56.3% | 5.19% | 0.401% | ||||||||
Maryland | 12.5% | 29.8% | 10.3% | 0.151% | 4.45% | 64.3% | 1.05% | 8.49% | ||||||||
Québec | 99.1% | 0.240% | ||||||||||||||
Manitoba | 0.656% | 83.1% | 11.7% | 2.04% | 1.39% | |||||||||||
Oklahoma | 2.73% | 5.70% | 91.6% | 11.4% | 5.60% | 4.28% | 17.9% | 30.0% | ||||||||
Tennessee | 5.63% | 19.5% | 14.5% | 3.55% | 90.1% | 5.50% | ||||||||||
Ontario | 97.2% | 1.67% | 1.13% | |||||||||||||
California | 99.7% | 0.688% | 12.5% | 0.232% | 17.8% | 2.26% | 1.00% | |||||||||
Arkansas | 17.5% | 40.8% | 7.44% | 10.2% | 12.6% | 46.8% | 33.2% | 6.01% | ||||||||
South Dakota | 100% | 32.7% | 3.47% | 37.3% | 22.0% | |||||||||||
Ohio | 5.07% | 9.56% | 59.7% | 23.0% | 3.42% | 0.721% | 29.0% | |||||||||
Indiana | 12.8% | 4.37% | 8.75% | 5.18% | 0.434% | 1.19% | 8.61% | 4.78% | ||||||||
Minnesota | 2.86% | 4.42% | 92.3% | 21.0% | 3.81% | 13.1% | 23.4% | 22.0% | ||||||||
Iowa | 1.50% | 98.5% | 26.6% | 12.5% | 44.0% | 16.3% | 0.628% | |||||||||
Illinois | 39.9% | 27.0% | 15.0% | 3.08% | 9.73% | 30.9% | 0.187% | 44.1% | 9.75% | |||||||
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