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 | very high (>300) | high (100–300) | medium (20–100) | low (2–20) | very low (<2) | high (100–300) | medium (20–100) | low–very low (<20) | very high–high (>100) | medium–very low (<100) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alaska | 10.9% | 1.73% | 69.2% | ||||||||||||||||
Arizona | 1.23% | 98.8% | 2.82% | 3.38% | 7.86% | 26.1% | 30.0% | ||||||||||||
Utah | 1.69% | 98.3% | 19.0% | 13.5% | 4.33% | 52.4% | 8.18% | ||||||||||||
Yukon | 2.68% | 1.03% | 94.3% | ||||||||||||||||
Northwest Territories | 0.393% | 14.9% | 20.5% | 0.340% | |||||||||||||||
District of Columbia | 100% | 100% | |||||||||||||||||
Florida | 1.32% | 13.8% | 25.9% | 67.8% | 3.90% | ||||||||||||||
Idaho | 4.63% | 95.4% | 0.187% | 2.97% | 8.14% | 5.84% | 27.5% | 16.7% | 38.6% | ||||||||||
New Hampshire | 72.0% | 27.9% | 100% | ||||||||||||||||
Rhode Island | 2.00% | 3.88% | 95.4% | ||||||||||||||||
Vermont | 95.7% | 4.07% | 100% | ||||||||||||||||
Washington | 23.4% | 70.9% | 9.44% | 21.7% | 1.72% | 5.32% | 11.6% | 26.7% | 12.4% | ||||||||||
Wyoming | 100% | 9.28% | 70.8% | 0.149% | |||||||||||||||
Nunavut | 1.56% | 18.2% | |||||||||||||||||
Montana | 9.26% | 90.7% | 1.96% | 56.5% | 4.73% | 1.30% | |||||||||||||
Maine | 17.3% | 69.8% | 10.8% | 99.6% | 0.281% | ||||||||||||||
North Dakota | 100% | 25.0% | 35.7% | 38.6% | |||||||||||||||
Kentucky | 1.72% | 54.3% | 1.61% | 9.53% | 4.79% | 60.6% | 34.6% | ||||||||||||
Nova Scotia | 25.1% | 6.85% | |||||||||||||||||
Virginia | 3.50% | 1.66% | 15.4% | 25.5% | 28.7% | 45.7% | |||||||||||||
Delaware | 17.4% | 81.8% | 97.7% | 1.87% | |||||||||||||||
Prince Edward Island | 98.8% | ||||||||||||||||||
Saskatchewan | 7.13% | 4.36% | 15.3% | 6.27% | 23.7% | ||||||||||||||
Mississippi | 14.3% | 79.0% | 5.27% | 80.4% | 0.601% | 11.5% | |||||||||||||
West Virginia | 7.63% | 45.0% | 12.8% | 8.92% | 99.3% | 0.714% | |||||||||||||
Nebraska | 100% | 45.3% | 37.3% | 4.89% | 3.30% | ||||||||||||||
Texas | 8.53% | 1.49% | 4.74% | 5.19% | 56.4% | 15.3% | 1.57% | 15.4% | 1.38% | 14.5% | 1.86% | 6.12% | |||||||
Missouri | 26.1% | 26.9% | 12.0% | 34.2% | 5.80% | 47.7% | 11.5% | 24.4% | 9.83% | ||||||||||
Louisiana | 41.6% | 42.5% | 8.80% | 4.48% | 2.23% | 99.6% | |||||||||||||
Hawaii | 7.83% | 2.03% | |||||||||||||||||
North Carolina | 1.35% | 37.2% | 1.72% | 9.88% | 38.6% | 0.266% | 54.6% | ||||||||||||
Oregon | 2.68% | 97.3% | 4.58% | 2.26% | 3.46% | 4.92% | 49.2% | 17.6% | 0.416% | ||||||||||
New Brunswick | 0.131% | 55.2% | 0.167% | ||||||||||||||||
Alabama | 84.6% | 13.4% | 52.2% | 32.1% | 10.6% | ||||||||||||||
New Mexico | 4.15% | 91.3% | 9.01% | 8.20% | 2.38% | 17.5% | 42.2% | ||||||||||||
Kansas | 100% | 13.6% | 26.2% | 18.1% | 41.9% | ||||||||||||||
Wisconsin | 4.01% | 46.8% | 27.3% | 21.3% | 42.1% | 16.2% | 35.1% | ||||||||||||
British Columbia | 0.939% | 8.63% | 3.82% | 42.0% | 15.4% | ||||||||||||||
Newfoundland and Labrador | 63.0% | 10.9% | |||||||||||||||||
New Jersey | 5.98% | 36.6% | 32.6% | 23.7% | 62.4% | 37.3% | |||||||||||||
South Carolina | 33.6% | 64.2% | 2.08% | 62.7% | 37.3% | ||||||||||||||
Michigan | 24.0% | 10.0% | 4.73% | 13.3% | 26.5% | 66.0% | |||||||||||||
Alberta | 11.4% | 3.76% | 18.2% | 32.1% | 8.32% | 2.17% | 3.59% | ||||||||||||
Connecticut | 49.9% | 50.0% | 99.9% | ||||||||||||||||
Pennsylvania | 3.58% | 34.8% | 29.1% | 10.8% | 1.35% | 83.5% | 10.2% | ||||||||||||
Colorado | 1.85% | 3.55% | 88.3% | 3.69% | 14.3% | 3.67% | 9.04% | 16.4% | 46.7% | ||||||||||
Nevada | 100% | 0.846% | 77.8% | 0.958% | 0.158% | 10.3% | |||||||||||||
Massachusetts | 98.2% | 0.204% | 98.0% | ||||||||||||||||
Georgia | 7.01% | 3.21% | 2.51% | 3.47% | 50.4% | 4.39% | 36.4% | ||||||||||||
New York | 4.25% | 52.6% | 35.3% | 2.89% | 5.91% | 91.1% | |||||||||||||
Maryland | 12.5% | 29.8% | 10.3% | 64.7% | 13.9% | 20.7% | |||||||||||||
Québec | 0.272% | 70.7% | 19.6% | ||||||||||||||||
Manitoba | 1.61% | 4.56% | 6.78% | 4.33% | 51.3% | ||||||||||||||
Oklahoma | 2.73% | 5.70% | 91.6% | 9.60% | 2.65% | 7.80% | 23.7% | 54.6% | |||||||||||
Tennessee | 5.63% | 19.5% | 14.5% | 3.55% | 21.5% | 71.6% | 3.39% | ||||||||||||
Ontario | 13.7% | 8.23% | 4.40% | 59.7% | 1.73% | ||||||||||||||
California | 99.7% | 1.53% | 8.91% | 2.60% | 8.90% | 3.94% | 0.295% | 0.750% | 14.0% | 3.26% | |||||||||
Arkansas | 17.5% | 40.8% | 7.44% | 10.2% | 49.6% | 14.2% | 36.2% | ||||||||||||
South Dakota | 100% | 4.24% | 4.28% | 9.35% | 8.75% | 73.3% | |||||||||||||
Ohio | 5.07% | 9.56% | 59.7% | 23.0% | 88.6% | 3.31% | |||||||||||||
Indiana | 12.8% | 4.37% | 8.75% | 5.18% | 65.5% | 0.222% | 12.0% | ||||||||||||
Minnesota | 2.86% | 4.42% | 92.3% | 7.33% | 24.3% | 29.3% | 39.1% | ||||||||||||
Iowa | 1.50% | 98.5% | 38.7% | 26.5% | 11.3% | 6.08% | |||||||||||||
Illinois | 39.9% | 27.0% | 15.0% | 3.08% | 9.73% | 0.557% | 94.5% | 0.407% | |||||||||||
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