It depends upon the types of pollutants, but a common result is acid rain.
Rainwater becomes acidic when it mixes with pollutants in the atmosphere such as sulfur dioxide and nitrogen oxides. On the other hand, ocean water is basic due to the presence of dissolved minerals like calcium carbonate, which acts as a buffer to maintain a stable pH level.
sulfur dioxide
Acid rain is colorless because it consists of ordinary rainwater that has become acidic due to the presence of pollutants like sulfur dioxide and nitrogen oxides. These pollutants dissolve in the rainwater, making it more acidic, but they do not necessarily change the color of the rain itself.
Rainwater is generally considered clean when it falls from the sky. However, once it reaches the ground, it can pick up pollutants and contaminants from the environment, such as dust, dirt, and chemicals. It's always a good idea to purify rainwater for drinking or household use to ensure it is safe.
Rain water is naturally slightly acidic, witha pH of about 5.0. Natural variations and human pollutants may cause rain to be more acidic. Depending on region, season and presence of pollutants, the pH of rain may drop to as low as 2.0 (the acidity of vinegar).
When rainwater mixes with pollutants, it can form acidic rain or polluted runoff. This can harm aquatic ecosystems, contaminate drinking water sources, and damage buildings and infrastructure.
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Rainwater becomes acidic when it mixes with pollutants in the atmosphere such as sulfur dioxide and nitrogen oxides. On the other hand, ocean water is basic due to the presence of dissolved minerals like calcium carbonate, which acts as a buffer to maintain a stable pH level.
The pH of the rainwater will go updown,updown!
The acidity is due to the presence of gases like sulfur and nitrogen compounds (SO2, SO3, NO2 ) as well as carbon dioxide. These combine with the water to form acidic solutions. In cases of extremely concentrated pollutants, this can form "acid rain" which is destructive to soil and to human building materials.
Natural rainwater primarily consists of water vapor that condenses in the atmosphere. It can mix with various atmospheric gases, notably carbon dioxide, which forms carbonic acid, and other pollutants like sulfur dioxide and nitrogen oxides, leading to the formation of acid rain. Additionally, dust and particulate matter can also mix with rainwater, affecting its purity and chemical composition.
Rainwater in industrial areas becomes more acidic due to pollutants such as sulfur dioxide and nitrogen oxides released by factories and power plants. These pollutants combine with water vapor to form sulfuric and nitric acids, lowering the pH of rainwater.
Stratospheric ozone is pollutant. It is because it mixes with other pollutants.
Rain water is usually fairly clean, but it can contain pollutants from the air.
salt salt makes it more acidic
Precipitation can carry pollutants in water whereby when moisture rises and mixes with gases from industries thereby condensing and falling back as acid rain may carry the pollutants into water.
Acid rain is primarily formed when sulfur dioxide (SO₂) and nitrogen oxides (NOₓ) mix with natural rainwater. These pollutants are released into the atmosphere through industrial processes, vehicle emissions, and burning fossil fuels. When they combine with water vapor, they create sulfuric and nitric acids, resulting in rain that has a lower pH and can be harmful to the environment.