Acid rain is defined as any type of precipitation with a pH of below 5.0. Normal rain has a pH which can range between 4.5 and 5.6 with an average value of 5.0. This natural acidity is caused by dissolved carbon dioxide dissociating to form weak carbonic acid. 'Acid rain' is caused by sulfur from volcanic venting or impurities in fossil fuels, and nitrogen from the air, combining with oxygen to form sulfur dioxide and nitrogen oxides. These diffuse into the atmosphere and react with water to form sulfuric and nitric acids which are so ...

Including:

• Acid rain - Origin
• Acid rain - Formation
• Acid rain - History
• Acid rain - Prevention Methods
• Acid rain - Effects of acid rain on soil biology

Read more here: » Acid rain: Encyclopedia - Acid rain

See also:

Acid rain, Acid rain - Origin, Acid rain - Formation, Acid rain - History, Acid rain - Prevention Methods, Acid rain - Effects of acid rain on soil biology

Read more here: » Acid rain: Encyclopedia II - Acid rain - History

One reaction leading to the production of acid rain is as follows: Evidence for an increase in the levels of acid rain comes from analysing layers of glacial ice. These show a sudden decrease in pH from the start of the industrial revolution of 6 to 4.5 or 4. Other information has been gathered from studying organisms known as diatoms which inhabit ponds. Over the years these die and are deposited in layers of sediment on the bottoms of the ponds. Diatoms thrive in certain pHs, so the numbers of diatoms found in layers of increasing depth give an indicat ...

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Acid rain, Acid rain - Origin, Acid rain - Formation, Acid rain - History, Acid rain - Prevention Methods, Acid rain - Effects of acid rain on soil biology

Read more here: » Acid rain: Encyclopedia II - Acid rain - Formation

Carbonic acid is a carbon-containing acid with the formula H2CO3. It is also a name sometimes given to solutions of carbon dioxide in water, which contain small amounts of H2CO3. The salts of carbonic acids are called bicarbonates (or hydrogencarbonates) and carbonates. Carbon dioxide dissolved in water is in equilibrium with carbonic acid: CO2 + H2 ...

Including:

• Carbonic acid - Acidity of carbonic acid
• Carbonic acid - Instability of carbonic acid
• Carbonic acid - Carbonic acid and rain water

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Rain is a form of precipitation, other forms of which include snow, sleet, hail, and dew. Rain forms when separate drops of water fall to the Earth's surface from clouds. Not all rain reaches the surface, however; some evaporates while falling through dry air. When none of it reaches the ground, it is a precipitation called virga. Rain - Rain in nature. Rain plays a major role in the hydrologic cycle in which moisture from the oceans evaporates, condenses into clouds, precipitates back to earth, and ...

Including:

• Rain - Rain in nature
• Rain - Culture

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Weathering is the process of decomposition and/or disintegration of rocks, soils and their minerals through natural, chemical, and biological processes that is, in place. It is not to be confused with erosion, which is the movement of rocks and/or weathering products by water, wind, ice or gravity. The breakdown products, after chemical weathering of rock and sediment minerals and the leaching out of the more soluble parts, when combined with decaying organic material, is called soil. The mineral content of the soil is determin ...

Including:

• Weathering - Mechanical Physical Weathering
• Weathering - Exfoliation
• Weathering - Freeze-thaw
• Weathering - Pressure release
• Weathering - Salt-crystal growth
• Weathering - Organic Activity
• Weathering - Abrasion
• Weathering - Chemical Weathering
• Weathering - Carbonation-solution
• Weathering - Hydration
• Weathering - Hydrolysis
• Weathering - Oxidation
• Weathering - Acids rain and plants

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Canadian Geographic is the bimonthly magazine of the Royal Canadian Geographical Society (RCGS). It was first published in May 1930 under the name Canadian Geographical Journal. The society's objective was to produce a popular magazine dealing primarily with Canadian geography. The first editor was Charles Camsell, since 1915 a fellow of the British Royal Geographical Society, a geologist who had been responsible for mappin ...

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Water pollution or H2O pollution has many sources and characteristics. Humans and other organisms produce bodily wastes which enter rivers, lakes, oceans and other surface waters; in high concentrations these wastes result in bacterial contamination and excessive nutrient loading (eutrophication). Industries discharge a variety of compounds such as heavy metals, and wastewater, sometimes in toxic concentrations, from industrial processes that may also be too hot or too low in dissolved oxygen to support life. Silt-bearing runoff from ...

Including:

• Water pollution - Causes
• Water pollution - Contaminants
• Water pollution - Consequences

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A Hard Rain's A-Gonna Fall is a song written by Bob Dylan in 1962 somewhere in Bleecker Street, New York. It was first recorded in Columbia Records' Studio A on the 6th December 1962 for his second album The Freewheelin' Bob Dylan. The lyric structure is based on the traditional ballad Lord Randall. A Hard Rain's A-Gonna Fall - Analysis. The ballad is made up of five considerable stanzas of metaphor and imagery. The song was written at the height of the Cuban Missile Crisis, and the bleakness ...

Including:

• A Hard Rain's A-Gonna Fall - Analysis
• A Hard Rain's A-Gonna Fall - Live performance
• A Hard Rain's A-Gonna Fall - Covers

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A Clean Air Act, describes one of a number of pieces of legislation relating to reduction of smog and atmospheric pollution in general. The United States Congress passed the Clean Air Act in 1963, the Clean Air Act Amendment in 1966, the Clean Air Act Extension in 1970, and Clean Air Act Amendments in 1977 and 1990. Numerous state governments and local governments have enacted similar legislation, either implementing federal programs or fi ...

Including:

• Clean Air Act - United Kingdom
• Clean Air Act - United States

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The principal natural phenomena that contribute acid-producing gases to the atmosphere are emissions from volcanoes and those from biological processes that occur on the land, in wetlands, and in the oceans. The effects of acidic deposits have been detected in glacial ice thousands of years old in remote parts of the globe. The principal cause of acid rain is from human sources, such as industrial and power-generating plants, transportation vehicles and factory farming (notably ammonia). The gases can be carried hundreds of miles in the atmosphere before they a ...

See also:

Acid rain, Acid rain - Origin, Acid rain - Formation, Acid rain - History, Acid rain - Prevention Methods, Acid rain - Effects of acid rain on soil biology

Read more here: » Acid rain: Encyclopedia II - Acid rain - Origin

The principal natural phenomena that contribute acid-producing gases to the atmosphere are emissions from volcanoes and those from biological processes that occur on the land, in wetlands, and in the oceans. The effects of acidic deposits have been detected in glacial ice thousands of years old in remote parts of the globe. The principal cause of acid rain is from human sources, such as industrial and power-generating plants and vehicles and electricity generation. The gases can be carried hundreds of miles in the atmosphere before they a ...

See also:

Acid rain, Acid rain - Origin, Acid rain - History and trends, Acid rain - Adverse effects, Acid rain - Effects on lake ecology, Acid rain - Effects of acid rain on soil biology, Acid rain - Other adverse effects, Acid rain - Prevention Methods

Read more here: » Acid rain: Encyclopedia II - Acid rain - Origin

Definition and meaning of acid rain:

acid rain - the precipitation of sulfuric acid and other acids as rain. The acids form when sulfur dioxide and nitrogen oxides released during the combustion of fossil fuels combine with water and oxygen in the atmosphere

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

Also see these pages: Oceanography, Oceanography Sitemap, Coral Reef, Environment, Sustainability, Climate Change,

Acid rain is a modern environmental problem. Frequently, the damage acid rain does to buildings and monuments makes the news. If acid rain can eat away marble buildings, the effects it has on the environment must be disastrous. A small change in pH can interrupt the delicate balance of the organisms living in and on the soil. The entire food chain suffers from the consequences of the disruption of the life in the soil by acid rain, since plants are a food source for the lowest animals of the food chain. This paper exp ...

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Acid rain, Acid rain - Origin, Acid rain - Formation, Acid rain - History, Acid rain - Prevention Methods, Acid rain - Effects of acid rain on soil biology

Read more here: » Acid rain: Encyclopedia II - Acid rain - Effects of acid rain on soil biology

Acid rain was first reported in Manchester, England, which was an important city during the Industrial Revolution. In 1852, Robert Angus Smith found the relationship between acid rain and atmospheric pollution. The term "acid rain" was used by him in 1872. He observed that acid rain could lead to natural destruction. Though acid rain was discovered in 1852, it wasn't until the late 1960s that scientists began widely observing and studying the phenomenon. Canadian Harold Harvey was among the first to research a "dead" lake. Public awar ...

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Acid rain, Acid rain - Origin, Acid rain - History and trends, Acid rain - Adverse effects, Acid rain - Effects on lake ecology, Acid rain - Effects of acid rain on soil biology, Acid rain - Other adverse effects, Acid rain - Prevention Methods

Read more here: » Acid rain: Encyclopedia II - Acid rain - History and trends

Acid rain - Effects on lake ecology. There is a strong relationship between lower pH values and the loss of populations of fish in lakes. Below 4.5 virtually no fish survive, whereas levels of 6 or higher promote healthy populations. Acid in water inhibits the production of enzymes which enable trout larvae to escape their eggs. It also mobilizes toxic metals such as aluminium in lakes. Aluminium causes some fish to produce an excess of mucus around their gills, preventing proper ventilation. Phytoplankton growth is inhibited by high acid ...

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Acid rain, Acid rain - Origin, Acid rain - History and trends, Acid rain - Adverse effects, Acid rain - Effects on lake ecology, Acid rain - Effects of acid rain on soil biology, Acid rain - Other adverse effects, Acid rain - Prevention Methods

Read more here: » Acid rain: Encyclopedia II - Acid rain - Adverse effects

The United States began emissions trading with the bubble and offset programs that began in the late 1970's. This was expanded dramatically with the passage of the 1990 Clean Air Act, which authorized the Environmental Protection Agency to put a limit on how much sulfur dioxide (which causes acid rain) a fossil-fueled plant was allowed to emit. In 1997, the State of Illinois adopted a trading program for volatile organic compounds in the Chicago area, called the Emissions Reduction Market System[1]. Beginning in 2000, over 100 major sources of po ...

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Emissions trading, Emissions trading - Prominent trading systems, Emissions trading - Effects on society and private enterprise, Emissions trading - Effects on the environment, Emissions trading - Stable totals are critical to a stable market, Emissions trading - Enforcement is critical to a stable market

Read more here: » Emissions trading: Encyclopedia II - Emissions trading - Prominent trading systems

Carbonic acid has two acidic hydrogens and so two dissociation constants: H2CO3 ⇌ HCO3− + H+ Ka1 = 2.5×10−4 mol/L; pKa1 = 3.60. HCO3− ⇌ CO32− + H+ Ka2 = 5.61×10−11 mol/L; p ...

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Carbonic acid, Carbonic acid - Acidity of carbonic acid, Carbonic acid - Instability of carbonic acid, Carbonic acid - Carbonic acid and rain water

Read more here: » Carbonic acid: Encyclopedia II - Carbonic acid - Acidity of carbonic acid

A solution of carbon dioxide in water in equilibrium with the atmosphere (0.033% CO2) has a pH of 5.6. Rain water is normally not quite saturated in CO2, and has a pH of around 6 in the absence of atmospheric pollutants. This effect is separate from the phenomenon of acid rain, where industrial pollutants such as sulfur dioxide dissolve in rain water and lower its pH drastically. However, the acidity of rain water has important geological consequences for carbonate rocks such as chalk and limestone. An equilibrium is es ...

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Carbonic acid, Carbonic acid - Acidity of carbonic acid, Carbonic acid - Instability of carbonic acid, Carbonic acid - Carbonic acid and rain water

Read more here: » Carbonic acid: Encyclopedia II - Carbonic acid - Carbonic acid and rain water

As of the censusGR2 of 2000, there are 675 people, 233 households, and 170 families residing in the city. The population density is 543.0/km² (1,407.3/mi²). There are 260 housing units at an average density of 209.1/km² (542.1/mi²). The racial makeup of the city is 81.04% White, 1.19% African American, 7.11% Native American, 0.59% Asian, 0.15% Pacific Islander, 3.41% from other races, and 6.52% from two or more races. 7.41% o ...

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Oakville Washington, Oakville Washington - History, Oakville Washington - Geography, Oakville Washington - Demographics, Oakville Washington - Acid Rain in Oakville

Read more here: » Oakville Washington: Encyclopedia II - Oakville Washington - Demographics