Students, do you know? The word "environmental protection" is easy to write, but difficult to do. If we don't do "environmental protection", what will our world look like in the next five years, ten years or one day? Maybe it's gray, and garbage can be seen everywhere. There will be a sandstorm every three or two days, and many things that people can't imagine will happen. ...
Recently, people have been deforestation, which has destroyed the ecological balance of nature. Dunes have swallowed up thousands of hectares of fertile land, floods have destroyed lovely homes, and nature's revenge has embarrassed mankind. Meishuixi once said that there would be no human beings without nature, which is the simplest truth in the world. Blindly plundering and conquering nature will only destroy the ecosystem and bring mankind to the brink of difficulties. Recently, people have made indiscriminate arrests and killings, which have caused great harm to the friends of mankind. "There are no birds in a hundred mountains, and there are no footprints in a thousand paths", which is the truest portrayal of the consequences of killing animals. From the bear injury of college students to the crazy hunting of fools, will humans also point their guns at themselves? Remember, protecting animals means protecting ourselves. Gu once said that every man is responsible for the rise and fall of the world. The historical responsibility of protecting the environment and maintaining ecological balance should fall on our cross-century generation. Let's all care about nature, love the earth, hand in hand, shoulder to shoulder, heart to heart, and build a green levee to defend resources, environment, the earth and our beautiful home.
Can be appropriately cut according to the actual situation.
Fan Wen:
Are you aware that the environment around us is being seriously damaged day by day? troublesome
Cutting down trees, polluting water and air, destroying the ecological environment and so on. Countless facts
Has told us that environmental protection is urgent, protecting the environment is not only the country and
The responsibility of government departments is also the responsibility of our "arch" citizens.
These days, I investigated the degree of air pollution around me and the harm of air pollution to human health.
According to the environmental characteristics around Zhuhai and the problems I found, I made an online survey.
According to the survey, the air around us is polluted. Pollution sources are mainly black smoke from factory chimneys and tail gas from motor vehicles. What are the pollutants emitted by these pollution sources? What is the harm to people's health? I consulted relevant materials and learned a lot about air pollution.
The main pollutants in the atmosphere are carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen oxides and particulate matter. If their content in the air exceeds a certain standard, it will endanger people's health. The air pollution index is less than 50, indicating that the air is good, and the pollutant concentration is less than the first-class standard limit in the Environmental Air Quality Standard, which is Grade I, which meets the air quality requirements of some areas that need special protection, such as nature reserves and scenic spots.
The air pollution index is more than 50 and less than 100, which means that the concentration of general pollutants in air quality is less than the second-class standard limit in the Ambient Air Quality Standard, which is second-class good and meets the air quality requirements of urban residential areas, commercial traffic residential mixed areas, cultural areas, general industrial areas and rural areas.
Preventing air pollution and controlling pollution discharge are fundamental measures to improve air quality. The main ways are: reasonable industrial layout and good environmental planning; Change the energy structure, popularize clean fuels and adopt clean production technology to reduce pollutant emissions; Strengthen energy conservation, improve energy utilization rate and regional central heating; Strengthen environmental supervision and management and control of old pollution sources, and implement total control and discharge up to standard; Strictly control automobile exhaust emissions.
Zhuhai is our "home" and should be built better. But the air pollution problem is very serious. What shall we do? I suggest:
(1) Three-dimensional greening, expanding the green area, can engage in soilless culture. Plants can filter all kinds of toxic and harmful air pollutants and purify the air, especially trees, so afforestation is a more economical and effective measure to prevent and control air pollution.
(2) Solve the fuel problem, and try to use energy with no pollution or less pollution, such as solar energy.
(3) Organize more publicity activities and consultation activities to raise people's awareness of environmental protection.
(4) Organize students to pick up garbage in streets, markets and squares on weekends to keep the environment clean and tidy.