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).
4.70–4.79 pH | 4.80–4.89 pH | 4.90–4.99 pH | 5.00–5.09 pH | 5.10–5.19 pH | ≥5.30 pH | -0.5 to -0.25 | -0.25 to 0.25 | 0.25 to 0.5 | 0.5 to 0.75 | 0.75 to 1.0 | 1.0 to 1.25 | 1.25 to 1.5 | 1.5 to 1.75 | Less than 1 | 1–5 | 6–10 | 11–15 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.61% | 5.25% | 24.0% | 2.19% | 8.23% | 7.64% | 10.5% | 43.8% | |||||||||||
| 31.0% | 100% | |||||||||||||||||
| 22.4% | ||||||||||||||||||
| 2.41% | ||||||||||||||||||
| 1.01% | ||||||||||||||||||
| 5.09% | 3.96% | |||||||||||||||||
| 100% | ||||||||||||||||||
| 10.5% | 13.5% | 1.09% | ||||||||||||||||
| 1.13% | 1.16% | 1.51% | 1.42% | 1.12% | 45.8% | 59.1% | 27.5% | 11.5% | 1.49% | |||||||||
0.16.0