Buildings
The effects of acid rain on buildings has been observed for 200 years because of air pollution. Buildings that had been standing in all types of weather for thousands of years suddenly began to decay rapidly. Acid rain can be especially damaging to buildings made of limestone and marble. When acid rain falls on the buildings it slowly dissolves away the stonework. Ancient monuments are affected by acid rain more than modern buildings because they are often made of limestone or marble. Consequently, these buildings may need constant up-keep.
Even though acid rain has been reduced in recent years, buildings are still showing signs of damage. This is because the acid rain has permanently changed the stones from which the building is made.
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