Poetry about water quality detection

1. A poem about Qingshui: Li Bai: Looking at Tianmen Mountain)

The Yangtze River split Tianmen Peak like a giant axe, and the green river flowed around the island.

The confrontation between the two sides is inseparable, and a boat comes from the horizon.

Yi Jiangnan Bai Juyi

Jiangnan is good,

The scenery used to be familiar.

At sunrise, the red flowers in the river won the flame.

The river is as green as blue in spring.

Can you not remember Jiangnan?

Very clear, Cui Hao.

Sages can make metaphors, be good people and store deep feelings. Whiteness depends on virtue, and clarification is intentional.

If you float upside down, you will never get a scratch, but if you float upside down, it will be difficult to invade. You have a high opinion, and your career has been entrusted to Lu Chen.

Self-discipline is like a mirror to spring. Honest and cautious housekeeping, fragrant ancient and modern.

Hu Wang ting shui Bai Juyi

After a long rain, the south lake rises, and the new sunny north guest passes.

The sun is dark red, and the wind is green without waves.

There are not many boats and boats on the beach.

Poor heart, what can I do alone?

Jiangxia doesn't want Song Zhili

The water in Chu is crystal clear, as if there were nothing, and it is directly connected with the distant sea. You and I will be thousands of miles apart, but there is this cup of wine in front of us.

Birds in the valley keep singing when it is clear, and apes in the river cry later. I have never shed tears in my life, but now I do.

2. Purpose and significance of water quality testing Original publisher: Jiaqing testing.

With the growth of the world population and the development of industrial and agricultural production, the water consumption is also increasing. At the same time, due to human production and life, the pollution of surface and underground water bodies and the deterioration of water quality make the limited water resources more tense. In the case of such a shortage of water resources, we should cherish water resources more, and the testing department should do a good job in testing to ensure people's health. Testing the water is related to people's livelihood and should not be underestimated. That's what it means. Water quality detection refers to the unified regular or irregular detection of chemicals, suspended solids, sediments and aquatic ecosystems in water, to determine the types, concentrations and changing trends of pollutants in water, and to evaluate the water quality. The main monitoring items can be divided into two categories: 1, which reflects the comprehensive indicators of water quality, such as temperature, chromaticity, turbidity, pH value, conductivity, suspended solids, dissolved oxygen and chemical oxygen demand. 2. Some toxic substances, such as phenol, cyanide, arsenic, lead, chromium, cadmium, mercury and organic pesticides. Water quality monitoring plays a vital role in the whole water environment protection, water pollution control and water environment health maintenance. For drinking water, if the water contains harmful bacteria, such as typhoid fever, cholera and dysentery, it will spread various infectious diseases. When there are a large number of plankton (such as protozoa and algae) in water, it will affect the physical properties of water and produce odor and water color. If the water contains some mineral salt impurities, it will also cause various diseases. If the fluoride content in drinking water is too high, the teeth will be mottled, leading to "dental plaque disease", which will completely destroy the teeth in severe cases. As for the sewage discharged in daily life, it can also spread diseases. Therefore, it is of great significance to monitor whether the drinking water quality meets the drinking water standard for ensuring the drinking water safety of the people. For industrial water, due to the different purposes of industrial production, the requirements for water quality are also different. For example, boiler water cannot contain a lot of calcium sulfate and magnesium sulfate.

3. Idioms to describe water with good water quality: water and sky are one color, lakes and mountains are one color, rivers and springs are one color, water is blue and water is slightly blue, crystal clear, trickling, blue water and blue sky, Tsinghua, Shui Mu, and water is Tsinghua. There are mountains, waters and green waters, and there are idioms: Take water as the head idiom: Water comes naturally, a rising tide lifts all boats, a rising tide lifts all boats, water and milk blend together, and fire and water are ruthless. There is a word "fishing for the moon in the water" in two idioms: drinking water, sailing against the current, running water does not rot, pushing the boat with running water, fishing in the water, meeting by chance, and the traffic under the bridge is like water, dripping from Qianshan Mountain. The word "water wheel pays water" is used in idioms in three places: clear mountain, poor mountain, heavy mountain, high mountain, low water, urgent wind, woody water source full of water, full of water, full of water, flowing in a stagnant pool, flowing mountains and rivers, looking through autumn water, dragging mud with water, and coming out when entering wasteland.