Acid rainfall is harmful to forests, lakes, streams, buildings and other objects and can cause certain health problems. Example: Acidity results from dissolution of carbon dioxide in the water producing carbonic acid: CO2(g)+H2O(l) H2CO3(aq)H(aq)+HCO3(aq) This chemical reaction shows that, when carbon dioxide is mixed with water, it forms acid rain (H2CO3). The acidic solution forms an H2CO3. H2CO3 is an Arrhenius acid because the solution contains an excess of H+ ions. Normally rain is already slightly acidic because there is carbon dioxide in the air that gets mixed in with the rain.
Acid Rain is a big problem especially in the big cities that have big industries like for example: São Paulo, Shanghai, New York etc. This document has interesting facts and explanations about what acid rain consists and affects in our society. Acid rain contains elevated concentrations of sulphuric and nitric acid. It can encompass big precipitation with the presence of this two acids, this acids can also be found in snow, dried materials particles and in the fog. The green surface or also called “world’s lung” and the eruptions of the volcanoes they release some chemicals into the atmosphere, but the one who most affects the human society is the Acid Rain.
Many people think that acid rain is the same as “normal” rain that we usually see; however, they are different. Acid rain has a lot of bad effects and people should know what exactly is acid rain to prevent it; as a result, some people have taken actions by making laws and to try making neutralization. Acid rain has been one of the most common topics to be spoken about these days and happens to have bad causes and effects. Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms. This can include rain, snow, fog, hail or even dust that is acidic.
Acid rain begins when both sulfur dioxide and nitrogen oxides (which are both compounds) are released into the air. They can reach up to the atmosphere. There they mix and react with oxygen,water and other chemicals to form acidic pollutants, which is also known as acid rain. These two compounds can travel very far where they become part of the rain, sleet, snow, or fog. This is because sulfur dioxide and nitrogen oxides dissolve easily in water and can be carried by the wind.
The increase of acid rain is increasingly proving to be a very distressing global issue. Acid rain defines any type of precipitation with excessive quantities of nitric and sulfuric acids. The formation of acid rain can be expressed by the equations: H2O(l) + SO2(g) ==> H2SO3(g) and 2NO2(g) + H2O(l) ==> HNO3(aq) + HNO2(g). It can appear in the form of fog, snow, and tiny bits of dry substance that settle on Earth. The biggest cause of acid rain is the burning and combustion of fossil fuels by factories, power plants, and automobiles.
Atmospheric acid deposition in form of rain, fog or snow was identified as major environmental problems for the countries in Europe, East Asia and North America (Bouwman et al., 2002). Normal precipitation pH is slightly acidic due to the presence of natural CO2 in the atmosphere However, a rainfall that has a pH value of less than 5.6 is considered as acid rain (Stephen KL, 1999). The recorded pH of the rainfall in Western Europe often range from 4.5 to 4 (Yadav RC, 2012) The main components of acid precipitation are sulphur dioxide, carbon dioxide and nitrogen dioxide dissolved in rainwater. When these components are present in the air and dissolved in water during rain, they forms various acids (Fig. 3) ( Wondyfraw, 2014).
With increased temperatures world wide, increase in sea levels and melting of ice from colder regions and icebergs, displacement and loss of habitat have already signaled an impending disaster if actions for preservation and normalization aren’t undertaken soon. 3. Acid Rain: Harmful gases like nitrogen oxides and sulfur oxides are released into the atmosphere during the burning of fossil fuels. When it rains, the water droplets combines with these air pollutants, becomes acidic and then falls on the ground in the form of acid rain. Acid rain can cause great damage to human, animals and
This ends up evaporating into the atmosphere forming condensed clouds that precipitate forming rainfall that forms the hydrologic cycle and ends up back into our rivers. This paper focuses on the formation of acid rain and its environmental effects in North America and Europe. Acid rain comes in both wet and dry deposition. The wet deposition is snow, sleet, fog and rain that usually have a higher PH acidic value than the normal rainfall. Dry deposition is when gases and dust particles also end up having a higher acidic value.
Air pollution is a serious and dangerous matter happening globally. The process of burning fossil fuels such as coal, oil, and natural gas contributes to excessive release of pollutants into the air. Air pollution can put people at higher risks of developing asthma, cancer and respiratory diseases. Most air pollutants are carcinogenic and when inhaled through the mouth and into the lungs, it circulates hazardous chemicals into the body. Pollutants such as carbon monoxide inhibits the capacity of blood carry oxygen to organs and tissues, and people with chronic heart disease may experience chest pain when carbon monoxide levels are too high.
Air pollution is when we release harmful or poisonous gases, generally climate gases, to the atmosphere. This happens when we for example drive a car. The car will release CO2, which will be added to the ozone layer and cause increased greenhouse effect, which again causes global warming. Certain industries contribute to air pollution as well, when they release harmful substances to the air, which also causes acid rain. Another form of pollution is water pollution.