The process can be summarized as follows:
Sulfur oxides (SOx) and nitrogen oxides (NOx) are released from industrial activities, power plants, and vehicles.
These pollutants react with oxygen and water vapor in the atmosphere to form sulfuric acid (H2SO4) and nitric acid (HNO3).
H2SO4 and HNO3 dissolve in rainwater, decreasing its pH and making it acidic.
The pH of normal rain is around 5.6, slightly acidic due to the presence of carbon dioxide (CO2) in the atmosphere. Acid rain has a pH below 5.6, and in severe cases, it can reach a pH as low as 4.3, which is comparable to the acidity of vinegar.
Acid rain can have various detrimental effects on the environment and human health:
Damages forests: Acid rain can harm trees by damaging leaves, reducing their ability to photosynthesize, and making them more susceptible to disease and pests.
Acidifies lakes and rivers: Acid rain can lower the pH of water bodies, making them acidic. Acidic water can harm aquatic life, including fish, plants, and insects.
Erodes buildings and monuments: Acid rain can erode the surfaces of buildings, monuments, and statues, especially those made of limestone or marble.
Contributes to respiratory problems: Acid rain can release tiny particles into the air that can irritate the lungs and exacerbate respiratory conditions like asthma and bronchitis.
To address the issue of acid rain, efforts have been made to reduce emissions of sulfur oxides and nitrogen oxides by implementing stricter pollution regulations and promoting the use of cleaner energy sources.
