What are the environmental hazards caused by shale gas development?

What are the environmental hazards caused by shale gas development? There are six aspects of environmental hazards caused by shale gas development. The potential impact of shale gas exploitation is also the subject of public and community concern. The main concerns are: ① the development process needs to consume a lot of water; (2) Water pollution caused by pipeline plugging and fracturing fluid; ③ Methane leakage during storage and transportation will aggravate the greenhouse effect; ④ The development process may induce earthquakes; (5) occupying a lot of cultivated land resources and destroying the surface and ecological vegetation; Noise and traffic problems will affect the daily life of residents.

What are the control measures for environmental problems caused by rare earth development? Environmental problems: (1) destroying vegetation and causing soil erosion; (2) Stripping the topsoil in a large area and destroying the land; (3) Underground mined-out areas are prone to collapse, causing geological disasters; (4) destroying the recycling of groundwater, forming a funnel area of groundwater, leading to the destruction of water resources;

Control measures: (1) Minimize the working face and reduce the damage to vegetation during mining; (2) Concentrate the stripped soil, cover it with turf to prevent soil loss, and reclaim it after mining; (3) Backfill mined-out areas as much as possible, and pits that cannot be backfilled by open-pit mining can be developed into fish ponds; (4) Properly dispose of mining wastes to prevent environmental pollution or water loss.

What are the environmental pollution caused by geothermal development? Geothermal energy is called the fourth energy source. In the situation of increasingly tense energy in the world, the development and utilization of geothermal energy has been paid more and more attention by many countries. China is a country rich in geothermal resources, and more than 2,600 hot springs have been discovered. Geothermal energy can be obtained without fuel. From the point of view of preventing air pollution, geothermal energy is an ideal energy source. However, the development of geothermal energy will also bring some environmental problems.

If a large amount of underground hot water is pumped, it will lead to regional land subsidence, resulting in road damage, underground pipeline rupture, water conservancy facilities and ground buildings damage and other consequences. The Wailaki Terrain Power Generation Department in the northern part of lake taupo, New Zealand, experienced land subsidence due to the consumption of a large amount of underground hot water. The diameter of the subsidence range is about 1000 meters. It has sunk 6 meters since 1958, with an average annual sinking of about 15 cm. There are three geothermal areas in Tianjin, China, and land subsidence has also occurred, some of which exceed 1 m. In addition, the drop of underground hot water level makes the upper space of aquifer bigger, and the accumulated steam increases sharply, thus increasing the air pressure. Some people worry that it will cause hydrothermal explosion.

Underground hot water contains dozens of chemical elements because of its high temperature, high pressure and strong ability to dissolve chemicals in surrounding rocks. Some of them are harmful to human body. Such as fluorine, arsenic and some radioactive elements. The fluorine content of underground hot water is generally high. For example, the underground hot water in Yuchuan, Japan contains 60.0 mg/kg of fluorine, the new fountain in Showa contains 238 mg/kg of fluorine, and the Yangbajing in Tibet, China contains fluorine 13.0mg/kg, all of which have exceeded the hygienic standard (1.0mg/kg). In some areas, underground hot water is discharged on the spot after being developed and utilized, which causes the pollution of drinking water sources by harmful elements. In plain areas without big rivers, if the underground hot water is discharged improperly, it will inevitably cause fluoride and arsenic pollution to drinking water sources, causing endemic diseases such as fluorosis and arsenic poisoning. Many countries and regions in the world are fluorosis areas.

In some places, low-temperature underground hot water is used to directly irrigate farmland or raise fish. Will the food, vegetables and fruits grown in these fields affect people's health if they eat them? Will fluorine, arsenic and other elements in the water be enriched in fish when fish are raised with this water? Does eating this kind of fish affect the human body? These have yet to be studied.

What are the hazards caused by environmental pollution? 1 marine ecological destruction: human production activities, such as engineering construction and fishery production, and changes in the natural environment, such as global warming and sea level rise, will destroy and change the marine ecological environment. The overfishing of some marine organisms by human beings has led to the decrease of the quantity and quality of marine biological resources, and also made some species frequently endangered. Some coastal engineering construction and reclamation lack scientific demonstration, which destroys the coastal environment and coastal ecosystem. At present, marine development activities still lack comprehensive and long-term planning, and the comprehensive benefits are poor.

2. Marine pollution: Most marine products come from production processes on land. Coastal activities such as waste dumping and port engineering construction should also discharge pollutants into coastal waters. Endangering marine life and human health.

Environmental hazards and industrial pollution caused by industrial production. Refers to the survival and reproduction of the natural environment by industrial enterprises in the production process, including human beings. Pollution is mainly caused by "three wastes" (waste water, waste gas and waste residue) and various noises in production, which can be divided into waste water pollution, waste gas pollution, waste residue pollution and noise pollution. If these pollutions are not prevented and treated, people's normal life will be seriously damaged, and future troubles will be endless.

Second, the harm of industrial pollution. Industrial pollution does great harm to industrial and agricultural construction and people's health, mainly in the following aspects: first, a large number of untreated harmful wastes such as water, gas and slag are discharged in industrial production, which will seriously destroy the agricultural ecological balance and cause great harm to natural resources development and agricultural production; Second, the industrial "three wastes" are also very harmful to industrial production itself. Toxic pollutants will corrode pipelines, damage equipment and affect the service life of factories. Third, environmental pollution and public hazards are rampant, which directly endanger the health of the broad masses of the people; Fourth, some industrial pollution has serious consequences and is difficult to remove. Some pollution is not easy to find, and the harm caused by it is already very serious.

What are the benefits of mobile APP development? The advantage of APP development is more convenient. As long as you want to open that APP, it is very convenient to open it. However, some people can find official websites online without downloading. The advantage of APP is convenience.

What harm does acid rain bring to human beings and the environment? What are water pollution and air pollution?

Acid rain refers to rain, snow, fog, hail and other atmospheric precipitation with pH less than 5.6. Harm of acid rain to human and environment.

1. Acid rain can reduce children's immune function, increase the incidence of chronic pharyngitis and bronchial asthma, and increase the incidence of eyes and respiratory tract in the elderly.

2. Acid rain will lead to soil acidification. Acid rain will also accelerate the loss of soil minerals and nutrients; Changing soil structure leads to poor soil and affects the normal development of plants; Acid rain can also induce plant diseases and insect pests, so that crops, especially wheat, will be greatly reduced. Under the influence of acid rain, the yield can be reduced by 13% to 34%. Soybeans and vegetables are also susceptible to acid rain, which leads to the decrease of protein content and yield. The impact of acid rain on forests is largely caused by the deterioration of soil physical and chemical properties.

3. Acid rain can dissolve hardened cement on the surface of nonmetallic building materials (concrete, mortar, lime-sand brick), produce cavities and cracks, reduce strength and damage buildings. Building materials become dirty and black, which affects the appearance and quality of urban landscape, and is called "black shell" effect.

The most representative example of the environmental harm brought by the war to the people is the atomic bomb used by the United States against Japan in World War II, which made the impact areas of Nagasaki and Hiroshima barren for more than 20 years.

What are the environmental hazards in recent years? First, the main sources of indoor air pollution:

There are many reasons for indoor air pollution, involving a wide range. It can be divided into three aspects: chemical pollution, physical contamination and biological pollution.

1. Chemical pollution mainly comes from decorative materials used in interior decoration, such as wood-based panels, various paints, coatings, adhesives and furniture. The main pollutants are organic substances such as formaldehyde, benzene and xylene and inorganic substances such as ammonia, carbon monoxide and carbon dioxide.

2. physical contamination mainly comes from buildings themselves, granite stones, some sanitary wares and household appliances, and its main pollutants are radioactive substances and electromagnetic radiation;

3. Biological pollution is mainly the damp and moldy walls and carpets in the living room, and the main pollutants are bacteria and germs.

2. What are the hazards of air pollution?

Indoor air pollution, hypertension, hypercholesterolemia and obesity are listed as the top ten threats to human health. Indoor environmental pollution has caused 35.7% respiratory diseases, 22% chronic lung diseases and 65,438+05% tracheitis, bronchitis and lung cancer. Indoor air pollution has become one of the five major environmental factors that endanger public health. Test data from China show that chemical, physical and biological pollution in China is increasing in recent years. In China, the number of excess deaths caused by indoor air pollution can reach 1 1. 1 10,000, with 220,000 excess outpatient visits and 4.3 million emergency visits. Serious indoor air pollution has also caused huge economic losses.

3. Why is the pollution more serious in summer?

1, air conditioning is widely used to cool down in summer, the doors and windows of the room are closed, and the indoor air exchange rate is relatively low.

2. In the case of high temperature and humidity in summer, the release of some toxic and harmful gases increases. Japanese indoor environmental experts have proved that when the indoor temperature is 30 degrees Celsius, the amount of toxic and harmful gases released indoors is the highest.

3. The influence of summer weather change. In summer, the temperature is relatively high and the air pressure is relatively low, which reduces the indoor and outdoor air pairs accordingly and easily causes the pollution gas to stay.

4. In summer, people's own metabolism and volatile components of various domestic garbage increase, which intensifies indoor air pollution. According to the indoor environmental testing results of Beijing Indoor Environmental Monitoring Center in recent two years, indoor air pollution in summer is more than 20% higher than that in other seasons.

Four, the performance of several main harmful gases exceed the standard:

Formaldehyde: Methylphosphine is an internationally recognized potential carcinogen, which can cause abnormal immune function, liver and lung damage, affect the central nervous system, and even cause fetal malformation.

Benzene: mainly from glue, paint, coating and adhesive, it is a strong carcinogen. People who absorb high concentrations of benzene in a short time will have symptoms of central nervous system anesthesia, ranging from dizziness, headache, nausea, fatigue and confusion to coma and respiratory and circulatory failure and death.

Ammonia: Ammonia is a colorless gas with a strong smell. Because of its high solubility, it is often adsorbed on facial mucosa and conjunctiva, resulting in inflammation. Inhalation of a large amount of ammonia in a short period of time can cause tears, sore throat, hoarseness, cough, bloodshot sputum, chest tightness, dizziness, headache, nausea and other symptoms. In severe cases, it will cause pulmonary edema and adults.

Radon: Radon can't be seen or smelled. Even in the environment with high radon concentration, people have no feeling about it. Radon is the second leading cause of lung cancer. "One day in a room with excessive radon is equivalent to smoking 100 packs of cigarettes a day." The introduction of an expert image shows how harmful radon is.

Verb (the abbreviation of verb) 12 The expression of indoor environmental pollution:

1 I feel depressed, nauseous and even dizzy when I get up every morning;

2 family members are often prone to colds;

I don't smoke, and I rarely touch the smoking environment, but I often feel uncomfortable in my throat, foreign body sensation and poor breathing;

4 children often cough and sneeze, and their immunity declines. Children who have newly renovated their houses are unwilling to go back;

5 family members often have problems such as panel allergy, and it is mass production;

All family members have diseases, and their symptoms have obviously changed and improved after leaving this environment;

7 newlyweds are not pregnant for a long time and can't find out the reason;

8. Under normal circumstances, pregnant women find fetal malformation;

After the new move or renovation, indoor plants are not easy to survive, leaves are easy to yellow and wither, especially some plants with strong vitality are difficult to grow normally;

10 after the new move, the family's pet cats, dogs and even tropical fish died inexplicably, and so did the neighbors.

1 1 I feel sore throat and dry respiratory tract as soon as I go to work. After a long time, I get dizzy and tired easily, so I'll be fine after work.

12 Newly renovated homes and offices or newly bought furniture have pungent, dazzling and other * * * smells, and they still smell for more than one year.