The chemistry of acid rain american chemical society. Both marble and limestone consist of caco 3, which reacts with acid rain in an acidbase reaction to produce caso 4. Please click here for a pdf version of this tutorial. Pdf precipitation chemistry and occurrence of acid rain over. Acid rain is precipitation with a ph acidity level of 5. Acid rain examination and chemical composition of atmospheric precipitation in tehran, article pdf available in environmentasia 51 january 2012 with 375 reads how we measure reads. Precipitation chemistry and occurrence of acid rain over.
If the acidic chemicals in the air are blown into areas where the weather is wet, the acids can fall to the ground in the form of rain, snow, fog, or mist. This paper outlines methods of describing aqueousphase reactions in liquid. These findings spurred intense research to understand the origin of the acid rain phenomenon. Precipitation chemistry and occurrence of acid rain over dhanbad. Acid rain is particularly damaging to lakes, streams, and forests and the plants and animals that live in these ecosystems. Acid rain is a familiar environmental problem that is discussed in chemistry or environmental lectures in universities as well as in secondary schools. A project for chemistry class inspired in draw my life. Acid rain is normally understood to include the deposition of the acidic combustion products. Acid deposition also includes the dry deposition of acidic particles and gases, which can affect landscapes during dry periods. Ecological consequences of the acid rain iosr journal.
Newbery and others published acid rain find, read and cite all the. Acid rain department of chemistry washington university. These compounds are transported in the air by the wind, until they fall to the ground in either wet or dry form. This is because there are some acidic compounds that are naturally mixed in with rainwater. Acidic deposition wet deposition refers to acidic rain, fog and snow. Firstly let us understand exactly what acid rain is. The chemistry of acid rain nisms whereby clouds attain that composition.
A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Pdf acid rain examination and chemical composition of. Acid rain triggers a number of inorganic and biochemical reactions with deleterious environmental effects, making this a growing environmental problem worldwide. Learning about acid rain a teachers guide for grades 6. Introduction to acid rain normal rain water is always slightly acidic because c02 present in atmosphere, get dissolved in it form carbonic acid.
Acid deposition includes acidic rain as well as other forms of acidic wet depositionsuch as snow, sleet, hail, and fog or cloud water. Because caso 4 is somewhat soluble in water, significant damage to the structure can result. Acid rain acid rain is formed when sulphur dioxide so2 and nitrogen dioxide no2 react in the atmosphere with water, oxygen and other chemicals to form various acidic compounds. Causes of acid rain the causes of acid rain are sulfur and nitrogen particles which get mixed with the wet components of rain. Many lakes have become so acidic that fish cannot live in them anymore.
While the ph value of water is 7 which is what we consider neutral, rainwater has a more acidic nature. Question sheet on acid rain students can use a text book or the internet to get the answers to the questions, or it could be based on a powerpoint for them to fill in as you go along. Acid rain can make surface waters like ponds and lakes more acidic, weaken trees. When atmospheric pollutants like oxides of nitrogen and sulphur react with rainwater and come down with the rain, then this results in acid rain. Pdf acid rain is one of the major environmental threats since 19th century.