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A PRESENTATION BASED ON : 

A PRESENTATION BASED ON ACID RAIN

JADAVPUR UNIVERSITYPEAPARED BY: TUSHAR MONDALPTCE – IV YEAR.ROLL NO : 000510403017GUIDED BY : PROF. S.N. CHAKRABORTY : 

JADAVPUR UNIVERSITYPEAPARED BY: TUSHAR MONDALPTCE – IV YEAR.ROLL NO : 000510403017GUIDED BY : PROF. S.N. CHAKRABORTY

Causes of Acid Rain : 

Causes of Acid Rain Burning coal. Oil and natural gas in power stations makes electricity, giving off sulphur dioxide gas. Burning petrol and oil in vehicle engines gives off nitrogen oxides as gases. These gases mix with water vapour and rainwater in the atmosphere producing weak solutions of sulphuric and nitric acids – which fall as acid rain.

How Acid Rain Affects The Environment : 

How Acid Rain Affects The Environment Acid rain is an extremely destructive form of pollution, and the environment suffers from its effects. Forests, trees, lakes, animals, and plants suffer from acid rain. Trees The needles and leaves of the trees turn brown and fall off. Trees can also suffer from stunted growth; and have damaged bark and leaves, which makes them vulnerable to weather, disease, and insects.

Humans : 

Humans Humans can become seriously ill, and can even die from the effects of acid rain. One of the major problems that acid rain can cause in a human being is respiratory problems. Many can find it difficult to breathe, especially people who have asthma. Asthma, along with dry coughs, headaches, and throat irritations can be caused by the sulphur dioxides and nitrogen oxides from acid rain.

Slide 11: 

Lakes are also damaged by acid rain. Fish die off, and that removes the main source of food for birds. Acid rain can even kill fish before they are born when the eggs are laid and come into contact with the acid. Fish usually die only when the acid level of a lake is high; when the acid level is lower, they can become sick, suffer stunted growth, or lose their ability to reproduce. Also, birds can die from eating "toxic" fish and insects.

More problems!!! : 

More problems!!! Acid rain can travel long distances. Often it doesn’t fall where the gas is produced. High chimneys disperse (spread) the gases and winds blow them great distances before they dissolve and fall to Earth as rain. Eg gases produced in England and Western Europe can result in acid rain in Scotland and Scandinavia.

Buildings : 

Buildings Acid rain dissolves the stonework and mortar of buildings (especially those made out of sandstone or limestone). It reacts with the minerals in the stone to form a powdery substance that can be washed away by rain.

EROSION DUE TO ACID RAIN ON MARBEL STATUE : 

EROSION DUE TO ACID RAIN ON MARBEL STATUE

Taj Mahal, India, 2004, enveloped in smog. . : 

Taj Mahal, India, 2004, enveloped in smog. .

Iron Mining in Dampier, 2003. This mine directly abuts important rock art sites, and produces emissions that contribute heavily to acid rain that is degrading them. : 

Iron Mining in Dampier, 2003. This mine directly abuts important rock art sites, and produces emissions that contribute heavily to acid rain that is degrading them.

Leshan Buddha in China, 2005, sandstone blackened and corroding from acid rain : 

Leshan Buddha in China, 2005, sandstone blackened and corroding from acid rain

The Longmen Grottoes are a masterpiece of Buddhist art and are considered one of the world`s most important sculptural sites. Longmen Grottoes in 2005 : 

The Longmen Grottoes are a masterpiece of Buddhist art and are considered one of the world`s most important sculptural sites. Longmen Grottoes in 2005

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Sandstone portal Figure on Herten Castle in Ruhr district of Germany. Sculpted 1702; photographed in 1908.

Solutions : 

Solutions 1. Sulphur dioxide can be removed from power stations chimneys but this process is expensive. 2. Reduce the amount of electricity we use - turn tv’s off at the mains, don’t leave on standby. turn off lights when a room is not in use. 3. Use renewable energy like wind power, solar panels, tidal power, HEP schemes and geothermal energy. 4. Fit catalytic converters to vehicle exhausts which remove the nitrogen oxides. 5. Limit the number of vehicles on the roads and increase public transport.

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