How acid rain affects plants
Acid rain does not usually kill trees directly. Instead, it is more likely to weaken trees by damaging their leaves and limiting the nutrients available to them. Often, injury or death of trees is a result of effects of acid rain in combination with one or more additional threats. Acidic water dissolves the nutrients and helpful minerals in the soil and then washes them away before trees and other plants can use them to grow.
how acid rain affects people
The rain itself doesn't hurt people. But it is actually sulfur dioxide and nitrogen oxides. It can be transported long distances by winds and inhaled deep into people's lungs. Fine particles can also penetrate indoors. There are also studies that show that when there are inceased particles there is increased illness and premature death from heart and lung disorders, such as asthma and bronchitis.