How to improve air pollution?

In today's world, atmospheric environmental problems have broken through narrow geographical restrictions and become a global problem that transcends national boundaries and attracts worldwide attention. Environmental pollution and ecological damage caused by global temperature rise, ozone layer destruction and acid rain have spread to every corner of the earth. However, it is impossible for human beings to sit still. Humans have organized themselves to formulate relevant treaties and strengthen international cooperation in pollution control.

1996 In May, a French organization called "Hungry for Fresh Air" launched a national campaign against air pollution in Paris. 1000 ~ 4000 people took to the streets in response to the call, and some activities were organized all over France. In the capital, 4,000 people walk, ride bicycles or roller skate between the Bastille Square and the beautiful air hall of the city park. In Toulouse, 40 people responded to the call of the Bicycle Association and gathered in the town hall square to demand the development of urban bicycle traffic. Most of the marchers ride bicycles. They crossed the street in the city center and demanded that urgent measures be taken to reduce the air pollution in the city. In Bordeaux and poitiers, about 70 people marched in the city center by bike and distributed leaflets. In Milos, more than 65,438+00 people took to the streets. In Lyon, dozens of Greenpeace members wore work clothes and gas masks to extract air in the city center, and asked drivers to "self-check" to control the pollution in the city. According to the organization, the number of deaths caused by air pollution reaches hundreds every year, and the only way to solve the problem is to limit the number of cars. They advocate the development of "clean" means of transportation like bicycles.

To control air pollution, we must have a correct policy orientation, otherwise it will be counterproductive. The example of Athens, Greece is very interesting. The air pollution in Athens is very worrying. These pollution sources are mainly nitrogen oxides, hydrocarbons, carbon monoxide and other waste gases in automobile exhaust. As a result, the government was forced to announce that the city center was closed to traffic, the factory stopped production, and even advised adults and children not to take to the streets. And impose high taxes on new cars to restrict people from buying cars, but the result is not ideal. People who can't afford a new car try their best to prolong the service life of old cars, and as a result, air pollution is aggravated. At the same time, while raising the price of cars, the government also subsidized the price of gasoline, making its oil price the lowest in Europe. This policy in turn stimulates people to buy cars. This vicious circle not only failed to solve the problem, but made it worse. It can be seen that a reasonable policy system is the basis for solving the problem.

In the past 10 years, the authorities of Mexico City have successively announced seven plans to reverse the serious pollution situation, including some famous measures such as "banning cars from driving today". However, the implementation of these plans has not achieved satisfactory results. Pollution continues to increase. According to the research report 1995 released by the Municipal Health Bureau in May, in Mexico City, 30% of children's lead content exceeds international standards. However, contrary to the situation in Mexico City, the pollution in Tokyo, Japan has been completely controlled. In fact, as early as the 1970s, Tokyo was one of the most polluted cities in the world, but the Japanese government took a series of strict measures to prevent pollution while developing its industry, thus controlling the pollution. Madrid, the capital of Spain, has become one of the European capitals with the lowest pollution index because of the government's attention. It seems that the control of air pollution lies in policy and technology. If the policy is improper, there is a danger of sailing against the current.

In some developing countries, it is an important direction to control air pollution to introduce technology from developed countries and change their original backward technology. China's combustion structure is dominated by coal. Therefore, in order to prevent acid rain and dust, it is necessary to change the combustion structure, carry out flue gas desulfurization and improve the combustion technology. Adopt cogeneration and central heating to replace decentralized heating. In this way, the boiler efficiency can reach 80% and the coal can be saved by 40%. It not only saves energy, but also facilitates centralized purification of flue gas.

The National People's Congress Standing Committee (NPCSC) Environmental Protection Law Enforcement Inspection Team inspected the air and water pollution of Shougang Company in May, 1996. The inspection team fully affirmed Shougang's achievements in economic construction and environmental pollution control, but also pointed out the serious air and water pollution situation and put forward constructive suggestions. The inspection team stressed that Shougang's environmental problems have both historical and practical reasons.

At present, the key is to raise environmental awareness and always put environmental benefits and economic benefits in the same important position. It is necessary to further change the mode of operation, change the traditional mode of operation that pursues scale, quantity, high investment, high pollution and low efficiency, and focus on adjusting product structure and improving product quality; At the same time, it is necessary to intensify technological transformation, promote cleaner production, strive to reduce material and energy consumption, reduce pollutant emissions, and make new contributions to improving the environmental situation in the capital.

Today, all countries in the world are beginning to care about atmospheric protection. People use scientific and technological progress to strengthen the control of air pollution. In many cities, the "black dragon", "yellow dragon" and "grey dragon" were bound and the "light blue devil" was driven away. Los Angeles, once famous for its public hazards, has restored its original beautiful scenery and become a tourist attraction again. London, the world-famous foggy city, has never had a smog incident again, and it is already a smoke-free city. More than 65,438+000 species of birds that once disappeared have returned to the branches to sing, adding interest to this modern metropolis. Dragonflies and fireflies that have disappeared for many years in Tokyo, Japan are back. China's environmental model cities: Xiamen, Zhuhai, Dalian and Shenzhen ... show their charming charm to the world. Under the same blue sky, in order to protect the fresh air and prevent those terrible air pollution incidents, all mankind are working hard.