Acid Rain
"Acid Rain," or more precisely acidic precipitation, is the term used to describe rainfall that has a pH level of less than 5.6--a pH of 7 being neutral. This form of air pollution is currently a subject of great controversy because of the damage it does to the environment and property worldwide. For the last ten years, this occurrence has brought destruction to thousands of lakes and streams in the United States, Canada, and parts of Europe. It also leads to the deterioration of buildings and statues by reacting with several minerals. Acid rain is formed when oxides of nitrogen and sulfite combine with moisture in the atmosphere to make nitric and sulfuric acids. These acids can be carried away far from its origin.
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This gas attacks the membranes of the respiratory organs and increases the likelihood of respiratory illness. It also contributes to ozone damage, and forms smog (Phamornsuwana, http://www.geocities.com/CapeCanaveral/Hall/9111/DOC.HTML#SPECIFIC). Nitrogen oxide can spread far from the location it was originated by acid rain.
Changes in environment change the wildlife living in that environment. The lowering of pH from 7 to 4 is a dramatic change in environment, and the changes in wildlife reflect it. There are both direct and indirect effects of acid rain. Acid directly interferes with the ability of fish to take in oxygen, salt, and other nutrients needed to stay alive. Acidic conditions in the water cause mucus to form in the gills of fish, and prevents them from absorbing oxygen from the surrounding waters (Farnham, http://www.ems.psu.edu/info/explore/AcidRain.html). With a few exceptions adult fish are unable to survive in waters with a pH below 4.8. However, fish eggs and baby fish are unable to survive pHs below 5.5 (Farnham, http://www.ems.psu.edu/info/explore/AcidRain.html). If reproduction is not possible a given fish population will eventually die off even if the pH is not low enough to kill the adult fish. Most importantly, acid rain can harm us through the atmosphere or through the soil from which our food is grown. Acid rain causes toxic metals to break loose from their natural chemical compounds, thus making the
Acid rain is caused by air pollutants in the atmosphere. These air pollutants are mainly from man made resources such as factories and automobiles. The burning of fossil fuels is also one of the biggest factors that pollutes the air and causes acid rain. The primary emissions from man made resources are sulfur dioxide and nitrogen oxides. The rain
Substances are released which run off into water bodies and toxic to water life. Acidic materials deposited directly from the atmosphere also have the effect of altering the acid balance in water bodies and this too has an effect on the life they support. Acidic deposition onto sensitive buildings causes decay of stonework and other materials.(Environment Agency: Acid Rain, page 1)
Acidity of an ecosystem, measured in pH, is a crucial factor to the survival of a species in an ecosystem. Altering it can have result in dramatically negative effects, in spite of the fact that pH of an ecosystem has been dramatically changed over a relatively short period of time due to various human activities. For example, acid rain is a major environmental problem that is caused by human-made pollution. When fossil fuels are burnt to get energy, pollutants like sulfur dioxide and nitrogen oxides get mixed into the rainwater and eventually are evaporated into the atmosphere. These gases enter the atmosphere, and mix with water in the water cycle to form an acidic mixture of water and gases. This water falls in the form of acid rain, which
Acid deposition can come in two forms, dry and wet. Wet deposition is when the acid falls in the form of fog, snow or other precipitation. Dry deposition is found in dry areas where it does not precipitate often. In these areas the chemicals fall as dust or smoke, and stick to whatever they land on. Acid deposition can be result to both natural and manmade sources. Natural sources of acid deposition include electrical storms, volcanoes, and decaying vegetation. Man-made emissions, from power plants that burn fossil fuels are released into the atmosphere as nitrogen oxides (NOx), and sulfur dioxide (SO2). These elements react to oxygen, water, and other gasses in the atmosphere in order to form acidic compounds. These acidic compounds then fall in either a wet or dry form. Acid rain can have a potentially devastating effects on the ecosystem it falls on. When acid rain hits the ground, it faces a natural buffer in the soil often in the form of limestone and calcium carbonate. The water will then travel into either a stream or a lake, where it affects fish. If the fallen rain has a pH at or below 5 undesirable species invade, often in the form of mosses or plankton. The top layer of water becomes too acidic for the inhabitants reproductive cycle to work properly, slowly killing off the
Acidification in the oceans kill the plant/animal life that is trying to strive at thy shore
Acid deposition effects water systems because it lowers the pH in the water, creating adverse effects. More Acidic water will also more readily absorb aluminum leached from soil runoff. The combination of aluminum and acidic water is very harmful to many species. When biomagnification occurs many species will die off resulting in less biodiversity in the water system. Dead or dying trees is a common sight with acid deposition in effect. Acid rain leaches aluminum from the soil, doing so sucking the nutrients from the tree and causing death. At high elevation acidic fog, or clouds can strip the nutrients from the trees foliage’ causing them to lose leaves and die. The trees are also less able to absorb sunlight, and with that will not be able to achieve photosynthesis. As well as rural areas, urban areas also get affected. If buildings are made out of marble or limestone, the stone will begin to peel and chip away over time. This is possible because when the main crust chips away underneath is something composed of gypsum. A mineral that forms from the reaction between calcite, water, and sulfuric acid. This mineral can be slowly eaten away and destroyed by acid
The range is between 0 and 14 and shows how basic or acidic the tested water is on a logarithmic scale. The lower the number, the more acidic the water is. A healthy lake is slightly acidic at 6.5 and in levels lower than 4.2, fish will not be able to survive. As pH levels move away from 6.5, more stress could be caused to aquatic life which could raise mortality rates. Changes in pH levels can also be natural or anthropogenic. Natural influences include carbonic materials in the water. When carbonic minerals are in the water, the alkalinity of the water increases (Host 2005). The levels of pH can also fluctuate due to human-induced reasons such as pollution and acid rain. Acid rain is any form of precipitation that has a pH level less than five (Mack 2014). Point source pollution can also influence pH levels. Chemicals from point source pollution result from agriculture and industrial runoff. Decreases in pH levels could result from respiration, decomposition, and an increase in carbon dioxide. Increases in pH levels result from photosynthesis and a decrease in carbon
Acid precipitation is a wide term that incorporates any type of precipitation with acidic parts, for example, sulfuric or nitric acid that tumble to the ground from the climate in wet or dry structures. This can incorporate into rain, snow, haze, hail or even clean that is acidic. Acid rain as numerous natural impacts, yet none is more prominent than its effect on lakes, streams, wetlands, and other amphibian situations.
There are several different pollutants that can lead to acid rain such as SO2, SO3, NO2, and CO2. These pollutants react with water to create acids as shown below.
An economic shortage would also occur because both the fishing industry and the shellfish industry will simply have less products to sell. The consequences of ocean acidification don’t just affect the ocean, it directly affects humans too.
“North Americans have been smelting ore and burning fossil fuels for generations. In the past, the gases went up ordinary chimneys or small smoke stacks, to descend upon near by areas and pollute them,” states author, Robert Collins. Almost everyone knows what acid rain is and has a vague idea of the consequences that exist as a cause of it. Most people however do not realize the severity of acid rain. The essay “Acid Rain: Scourge from the Skies” by Robert Collins was very effective in showing the true severity of acid rain. By using excellent developmental devices, Robert Collins was able to write an effective essay that is appealing to today’s society, as well as
Acid rain causes a cascade of effects that harm or kill individual fish, reduce fish population numbers, completely eliminate fish species from a water body, and decrease biodiversity. As acid rain flows through soils in a watershed, aluminum is released from soils into the lakes and streams located in that watershed. So, as pH in a lake or stream decreases, aluminum levels increase. Both low pH and increased aluminum levels are directly toxic to fish. In addition, low pH and increased aluminum levels cause chronic stress that may not kill individual fish, but leads to lower body weight and smaller size and makes fish less able to compete for food and habitat. Acid rain can hurt the environment in many ways one that gets affected by acid rain
Another form of industrial waste that contributes to water pollution is acid rain. Acid rain is a product of industries burning coal. The burning of coal produces sulfur oxide and nitrogen oxide, and when these chemicals combine with the earth’s atmosphere it forms acid rain The Northeastern part of the United States has the worst acid rain levels in the world. More specific, the states with the highest concentration are Ohio, Indiana, Illinois, and some boarding parts of Canada and New England area. The falling acid rain can destroy plants and animals in several different ways. The acidification of a lake, river, or stream because of the high acidic levels in the water kills algae. Since algae are the main source of food, for many species of fish, they will also suffer from the high acid levels.
In a freshwater ecosystem, the pH level of the water can greatly affect living organisms within the ecosystem. There
A healthy lake has a pH of around 6.5 and a large number of plants,