Please give examples of three areas of acid rain hazards

Acid rain has had a severe impact on the earth's ecological environment and human society and economy. Studies have shown that acid rain has brought serious harm to human landscapes such as soil, water bodies, forests, and buildings, not only causing major economic losses, but also endangering human survival and development. Acid rain acidifies the soil, reduces fertility and poisons the roots of crops, killing the hairs and causing poor development or death.

Acid rain also kills plankton in the water, reduces the source of fish food, and destroys indirect human contact and endangers human health. The dangers of acid rain to forests should not be overlooked, as acid rain washes the surface of plants, directly injuring them or indirectly indirectly through the soil. Promote the decline of forests. Acid rain has a strong corrosive effect on building materials such as metals, stones, mud and wood, and can cause serious damage to power lines, rails, bridge beams, houses, etc.

Case 1In Canada, acid rain destroyed more than 140,000 lakes and more than 4,000 lakes were on the verge of "death". There are thousands of beautiful lakes in Europe that are also lifeless, with no frogs to hear or fish leaping. In the United States, 360,000 square kilometres of water have been acidified, and 9,400 of the 17,054 lakes in 28 states have been affected by acid rain, and their water quality has deteriorated.

In the Adidac Mountains of upstate New York, in 1930 only 4 lakes were free of fish, while now more than half of the lakes have a pH below 5, 90 have no fish, no frogs can be heard, and "dead silence."

Case 2: The U.S. loses $25 billion annually from acid rain. The natural conditions of Chongqing and Nanjing are similar, but Chongqing is an area with serious acid rain erosion, and the maintenance of TV towers and construction machinery, and the replacement of street lights and wires are twice as frequent as Nanjing. The steel girders of the Jialing River Bridge are corroded by millimeters every year, and it will not take 30 years to be dangerous due to the rusting of the steel girders.

First, it will acidify the soil and reduce its fertility, resulting in the death of crops or reducing yields, and second, it will cause changes in the salinity of fish ponds and lakes, and harm aquatic organisms such as fish, shrimp, and algae.

Third, polluting rivers, lakes and groundwater directly or indirectly endangers human health.

3. The Hazards of Acid Rain · Human The impact of acid rain on human beings, our most direct reaction is that it will be "baldness", but whether it will really cause baldness, scientists still work hard to study, but everyone is still less exposed to the rain is better. The most serious problem of acid pollution for humans is respiratory problems. Sulfur dioxide and nitrogen dioxide ejections can cause respiratory problems such as asthma, dry cough, headaches, and allergies to the eyes, nose and throat.

For humans, an indirect effect of acid rain is that toxic metals dissolved in water are absorbed by the tissues of fruits, vegetables and animals. Although these toxic metals do not directly affect these animals, eating them can have serious effects on humans. For example, mercury accumulated in arterial organs and tissues has been linked to brain damage and nervous disorders.

Similarly, another metal in animal organs, aluminum, has been linked to problems with the kidneys and has recently been suspected of being linked to the disease of Alzheimer's disease. · Buildings & Statues Acidic particles can also accumulate on buildings and statues, causing erosion. For example, the U.S. Capitol building built in Ottawa has been disintegrated by excess sulfur dioxide in the atmosphere.

When limestone and marble come into contact with acid, they transform into a crushing substance called gypsum. In addition, bridges are corroding at a faster rate, and the railroad industry, like the aircraft industry, must spend more money to repair the damage caused by acid rain. Acid rain not only poses an economic burden, but also poses a danger to the safety of the general public.

To cite just one example, the bridge over the Ohio River collapsed in 1967, killing 46 people. Why? Due to corrosion by acid rain.

In addition, acid rain has caused the erosion of exposed statues, which has caused the destruction of cultural assets, which is worrying to many. · Crops Acid rain will affect the leaves of crop rice, and at the same time, the metal elements in the soil will be dissolved by acid rain, resulting in a large loss of minerals, and plants will not be able to obtain sufficient nutrients, and will wilt and die. However, the release of metals from acid rain in the soil may also affect plant uptake, which is a complex problem, for example, the release of certain metals (e.g. iron) from acid rain can help plant growth.

Therefore, the exact effects of acid rain on plants, crops, and forests remain unclear. The picture on the left shows the leaf being damaged by acid rain, and the picture on the right shows the microscope looking at the internal tissues of the leaves · Trees and soil.

Acid rain has had a severe impact on the earth's ecological environment and human society and economy. Studies have shown that acid rain has brought serious harm to human landscapes such as soil, water bodies, forests, and buildings, not only causing major economic losses, but also endangering human survival and development. Acid rain acidifies the soil, reduces fertility and poisons the roots of crops, killing the hairs and causing poor development or death.

Acid rain also kills plankton in the water, reduces the source of fish food, and destroys indirect human contact and endangers human health. The dangers of acid rain to forests should not be overlooked, as acid rain washes the surface of plants, directly injuring them or indirectly indirectly through the soil. Promote the decline of forests. Acid rain has a strong corrosive effect on building materials such as metals, stones, mud and wood, and can cause serious damage to power lines, rails, bridge beams, houses, etc.

Acid rain is a by-product of the high development of industry, due to the large use of fossil fuels such as coal, oil, natural gas, etc., the sulfur oxides or nitrogen oxides produced after combustion, after complex chemical reactions in the atmosphere, form sulfuric acid or nitric acid aerosols, or capture and absorb clouds, rain, snow, fog, and fall to the ground to become acid rain.

Hazards: 1. Acid rain can induce plant diseases and pests, which can greatly reduce crop yields, especially wheat, which can reduce yields by 13% to 34% under the influence of acid rain. Soybeans and vegetables are also susceptible to acid rain, resulting in lower protein content and yields.

2. The impact of acid rain on forests is largely caused by the deterioration of the physical and chemical properties of the soil.

3. Acid rain can inhibit the reproduction of some soil microorganisms and reduce enzyme activity, and nitrogen-fixing bacteria, bacteria and actinomycetes in the soil will be significantly inhibited by acid rain.

Strategy: 1. Develop new energy, such as hydrogen energy, solar energy, hydro energy, tidal energy, geothermal energy, etc.

2. Use coal-fired desulfurization technology to reduce sulfur dioxide emissions.

3. The emission gas of industrial production is discharged after treatment.

4. Drive less and travel more by public transportation.

Acid rain is the wet deposition in acid sedimentation, which can be divided into two categories: wet deposition and dry deposition, the former refers to all gaseous pollutants or granular pollutants, with rain, snow, fog or hail and other precipitation forms that fall to the ground, and the latter refers to the acidic substances carried by the dust falling from the air on days when it does not rain.

Reduction of acid gas emissions.

Acid rain pollutes the environment and pollutes water sources.

Acid rain is formed by rainwater absorbing acidic soluble gases from the air.

Destroying buildings, corroding metals, destroying forests, vegetation, crops, acidifying soil and water.

Corroding metal materials destroys vegetation and causes land acidification.

1. Corrosion of the outer surface of various materials such as buildings, roads and bridges.

2. Accelerate the corrosion of the rain drainage pipeline system or the corrosion of the sewage pipeline.

3. Soil acidification and soil compaction affect the soil microbial community structure at the same time4, affecting the water quality of underground diving and surface water.

5. Comprehensive impact on plant growth and environmental ecology.

6. Harm to human and animal health.

Problem Solving Ideas: Sulfur dioxide in the air will form acid mist under the combined action of oxygen and water, and the sulfur oxides and nitrogen oxides in the air will form acid rain when rain falls Acid rain can directly destroy crops, forests and grasslands, and make the soil more acidic Shouting acid rain will also acidify lakes and cause fish deaths In addition, acid rain will also accelerate the corrosion of buildings, bridges, industrial equipment, and telecommunication cables Industrial waste gas needs to be purified before it can be discharged into the atmosphere to prevent air pollution and waste of sulfur resources

Causes of acid rain: the sulfur dioxide of air 2 will form acid mist SY4+H4Y H4SY3, 4H4SY3+Y4 4H4SY4 under the combined action of oxygen and water, and the sulfur oxides and nitrogen oxides of air 2 will form acid rain when rain falls;

Acid rain hazards: Acid rain can directly damage crops, forests and grasslands, making the soil more acidic Acid rain can also acidify lakes and cause fish kills In addition, acid rain can also accelerate the corrosion of buildings, bridges, industrial equipment, and telecommunication cables;

Prevention and control measures: industrial waste gas needs to be purified before it can be discharged into the atmosphere2 to prevent air pollution and waste of sulfur resources;

Answer: Acid rain is formed because the sulfur dioxide of air 2 will form acid mist SY4+H4Y H4SY3,4H4SY3+Y4 4H4SY4 under the combined action of oxygen Zhengxian State gas and water, and the sulfur oxides and nitrogen oxides of air 2 will form acid rain when rain falls;

Acid rain can directly damage crops, forests and grasslands, making the soil more acidic Acid rain can also acidify lakes and cause fish kills In addition, acid rain can also accelerate the corrosion of buildings, bridges, industrial equipment, and telecommunication cables;

The prevention and control measures are that industrial waste gas needs to be purified before it can be discharged into the atmosphere 2 to prevent air pollution and waste of sulfur resources 5,

Acid rain is rain and snow or other forms of precipitation with a pH less than that. Its formation is due to the sulfur oxides or nitrogen oxides produced after the combustion of fuels such as coal and oil used by human beings, and through complex chemical reactions in the atmosphere, aerosols are formed for clouds, rain and fog, and are called acid rain when they fall to the ground.

Acid rain can lead to reduced crop yields or even death, and can also accelerate the loss of minerals from the soil, leading to soil impoverishment. Acid rain also reduces children's immune function, and acidic substances in the air increase the incidence of asthma and bronchitis. In addition, acid rain can also acidify the water quality of rivers and lakes, causing the extinction of aquatic species.

At the same time, acid rain accelerates the corrosion rate of buildings, metals, and other substances.

For more than a decade, acid rain has become an increasingly problematic due to increasing emissions of sulphur dioxide and nitrogen oxides. China is already the third largest acid rain region after Europe and North America. The main distribution areas of acid rain in China are the Sichuan Basin, Guizhou, Hunan, Hubei and Jiangxi south of the Yangtze River, as well as the coastal provinces of Fujian and Guangdong.

In northern China, acid rain deposition is rarely observed, which may be due to the low precipitation, low air humidity, and low soil acidity in the north.

For the sake of human survival, we should reduce the emissions of sulfur oxides and nitrogen oxides, use less coal and use more clean energy.

1. Acid rain is a phenomenon caused by the burning of a large number of fossil fuels or biological substances, which emit acidic compounds (such as sulfur dioxide and nitrogen dioxide) into the air, resulting in the rainfall containing acidic substances such as sulfuric acid and nitric acid. The concept was first proposed by British chemists in 1859, but it was not widely used until the middle of the 20th century.

2. It is worth mentioning that rain that is not acidic is acid rain. Since carbon dioxide in the air dissolves in rainwater to form carbonic acid, the normal pH of rainwater is about around. Generally speaking, rain with a pH below is considered to be acid rain.

3. Substances in acid rain can pass through the ecosystem, endanger forests, damage wildlife habitats, and even cause corrosion to buildings mainly made of marble. For example, the Taj Mahal is severely corroded.