Acid Rain

Acid Rain

1. Rainfall with a pH of >5.6 is acid rain

2. How acid rain occurs

   • 1) Fossil fuels are burned in cars, factories etc.
   • 2) Gases called sulphur dioxide & nitrogen oxide are released into the air & blown by the wind
   • 3) The gases mix with rain to form sulphuric & nitric acids which becomes acid rain

3. Acid rain damages crops, trees, fish, buildings & human health

4. Effects of Acid Rain

   • Agriculture
     • creates acidic soils
     • leaching
     • Norways soils are 10 times more acidic than 50 years ago
   • Forests
     • leaching
     • trees become malnourished
     • more than half of Germanys trees have been damaged by acid rain
   • Tourism