Can the water quality test pen test the quality of water?

The water quality test pen can only measure the physical and chemical indexes of water quality, but can't judge the quality of water.

The water quality test pen, also known as TDS test pen, is a simple and portable water quality test tool, which is used to test the TDS value or conductivity of water.

Naturally, it is impossible to detect the real situation of water quality by only one TDS value.

There is well water in my hometown. One day, three people said it was a water quality test, and my mother agreed. Later, I thought about how to adjust the water quality and reported the drinking water quality test report of Xijiao Village. I have tested it for you (at my own expense) through Shijiazhuang monitoring station of the national urban water supply quality monitoring network, and the results show that five indicators are unqualified and the problem is serious. Now the original test report is provided to everyone, hoping that village leaders and villagers will pay attention to it and solve it as soon as possible! Because of my ability and specialty, there are several problems that need to be solved by Qi Xin: 1. According to Director Zhao of the monitoring station, according to the requirements of the National Hygienic Standard for Drinking Water (GB5749__2006), all indicators must be qualified, while five drinking water in our village are unqualified, even several times higher than the normal value. What are the reasons for these five indicators? Two. If these five unqualified indicators are drunk for a long time, what adverse effects will they have on the human body, or what diseases will they easily lead to.

This kind of water is not only harmful to human body, but also harmful to our food, vegetables, fruits and livestock.

In my opinion, the world can only be destroyed, not saved. Of course, now I think this view seems to be wrong.

Because everything I have seen and what is happening on the earth shows that the situation is not very bad, and there are still many people who struggle for saving this planet all their lives.

But unfortunately, a considerable part of these struggles are likely to be in vain.

On the one hand, some struggles are superficial, ignorant, even absent-minded and empty-handed.

On the other hand, it seems much easier to destroy the world than to save it.

Personally, I would rather say that I am the destroyer of the earth than boast that I have made too much contribution to environmental protection.

In my opinion, the birth of anyone on this planet which has become extremely overpopulated is a potential threat to the environment.

Growing up, consuming and making garbage can be said that each of us owes a debt to the world, and it is only natural to pay back the debt.

Then we have no reason to be proud of environmental protection. We can only say that after suffering in a harsh environment for too long, our conscience was discovered, our brain was perfected, and we got rid of childishness, barbarism and rudeness to pay off this debt.

I am not advocating the so-called "inherent evil at the beginning of life", but that we are heavily in debt-this is a fact, and each of us must deeply realize this, so as to put down our airs and be less complacent, and truly take environmental protection as a responsibility, seriously protect the environment, seriously protect the environment, and even go to environmental protection with tears.

In this way, we won't shout environmental protection while throwing plastic bags on the roadside; Or dig the sapling out of one place, then bury it in another place casually, and then watch it die slowly and painfully.

Then, our struggle will not be superficial and formal, and our struggle will really be a struggle.

On the other hand, the question is how much damage can be offset by efforts to save the world.

Maybe the word "offset" is not appropriate here. If the Siberian tiger is completely dead, then this destruction will be irreversible. Even with millions of lives, it is impossible to get a pair of "Tiger Adam" and "Tiger Eve" from God.

I said it was much easier to destroy than to save, at least in terms of numbers. After all, the struggle for salvation is only a part, and the destroyer is all.

The word "destruction" may be shocking, but in fact each of us is working hard for destruction.

We want to eat, so a large area of forests and grasslands are reclaimed into so-called fertile fields, which are burned and burned, and the more they burn, the more desertification begins.

Each of us wants a living space, so our space becomes more and more crowded and dirty.

We should feel the crisis, and the rescue efforts are too fragile in the face of destruction. Trees that have grown for decades or even hundreds of years can be polished with only a few chainsaws. Beautiful countryside, which was finally managed, only needed a few missiles to be blown into a chaotic grave.

I think many people have a potential desire for destruction. Once expanded, the consequences are unimaginable-NATO is, at least its behavior is anti-environmental! This is more significant to punish the saboteurs than to save the world.

At the very least, it can destroy unscrupulous saboteurs, make them feel fear, arouse people's awareness and inspire our fighting spirit.

In this way, we can preserve more and destroy less.

Everyone knows about environmental protection every day, but I still feel sad: although the world must be irreversible, if we don't really get serious, I'm afraid it will go downhill. However, we still have reason to be happy. As far as today is concerned, I don't think the world will be destroyed-at least not for a hundred years.

How to write an application for testing the quality and noise of drinking water? Individuals apply to the relevant departments for drinking water ... During the summer vacation, a report on TV caught my attention: Hunan Library carried out volunteer activities for drinking water survey in Changsha, Zhuzhou and Xiangtan.

I am very interested in this, and I have also consulted relevant materials to learn more about drinking water.

At the weekend, my classmates and I went to Hunan Environmental Monitoring Center Station, visited the State Key Laboratory of Heavy Metal Pollution Detection of Environmental Protection, listened to the professional explanation of the harm of pollutants to drinking water, and observed the detection of water samples by professional technicians.

One weekend afternoon, I rushed to Hunan Library to attend a forum lecture with the theme of "Water Security in China".

Just arrived at the scene, the chairman of Changsha Shuguang Environmental Protection Public Welfare Development Center praised me and said, "Liang, you are the youngest netizen to participate in this forum. Welcome to join our volunteer team.

""You are the youngest reporter to interview this forum! Wait, you have to ask a wonderful question! "A media reporter saw my little reporter's interview card hanging on his chest and smiled and encouraged me.

At the forum, Aunt Liu Shu first introduced their volunteer team's investigation of drinking water in Changsha, Zhuzhou and Xiangtan.

Volunteers worked tirelessly to collect water samples in remote villages and voluntarily tested the water quality.

Then, Dr. Lan Weiguang, a travel-stained professor at the National University of Singapore, gave a vivid lesson on water safety by combining his own experience in scientific research and entrepreneurship with the water safety story in Singapore.

Dr. Lan Weiguang said humorously: "Most of the water pollution is neglected.

At present, the pollution of drinking water in China mainly comes from three aspects: first, industrial pollution; Second, agricultural and aquaculture pollution, pesticides and other organic substances and waterworks chlorination will produce carcinogens; Third, garbage pollution, such as plasticizer produced by plastic garbage flowing into water, will remain in tap water.

He told us that one third of the drinking water in Singapore comes from reclaimed water, and even the water used to flush toilets can become qualified drinking water after being treated.

"Can I drink water after flushing the toilet?" Everyone is very interested in this.

A short article investigating the phenomenon of wasting resources and polluting the environment around us, such as an online report on environmental pollution: the environment around us is closely related to our lives, just like fish and water, which are inseparable from each other.

So that we can better understand the environment around us and effectively control the polluted environment around us.

I specially designed a questionnaire to survey people around me.

This survey was conducted by means of questionnaire survey, and the questionnaire was sent to the respondents' mailboxes electronically to remind them to fill in.

A total of 35 questionnaires were sent out, 33 were recovered, and 32 were finally valid.

The survey covers college students in 20 universities, which is a representative survey.

Through investigation, it is found that the environmental awareness of Chinese students or citizens is not enough.

According to the survey, only 50% of the respondents really know about World Environment Day or are consciously concerned about the environmental pollution index.

There are even fewer articles actively concerned about pollution, only 47.5%.

The pollution level of their surrounding environment is 6 1%.

45% of these polluted environments are affected by industrial waste.

The remaining 55% is caused by domestic waste, mainly white pollution. With the accelerated pace of people's life, social life is developing in a convenient and hygienic direction.

In order to meet this demand, disposable polystyrene foam lunch boxes and plastic bags began to enter people's daily life frequently.

The appearance of these convenient and low-cost packaging materials has brought a lot of convenience to people's lives.

On the other hand, these packaging materials are often discarded after use, resulting in "white pollution".

White pollution is a unique environmental pollution in China. A large number of discarded plastic products can be seen everywhere in various public places. They come from nature and are made by human beings, but when they finally belong to nature, they are not easily absorbed by nature, thus affecting the ecological environment of nature.

Its main performance is the use of disposable plastic bags, disposable lunch boxes, disposable chopsticks and other difficult-to-degrade chemical substances made of packaging materials.

The characteristic of this new functional plastic is that after reaching a certain service life, it degrades due to obvious changes in its chemical structure, which is harmless or less harmful to the natural environment.

For example, starch-filled plastics, first of all, the starch contained in it is rapidly decomposed by amylase secreted by microorganisms in the soil in a short time, which leads to the decline of the mechanical properties of the film. At the same time, the self-oxidant added in the formula reacts with the metal salt in the soil to generate peroxide, which breaks the chain of polyethylene and degrades it into small pieces that are easily swallowed by microorganisms, which are absorbed by the natural environment and play a role in improving the soil.

We all know that plastic bags were banned in China last year.

However, according to my survey data, 35% people have not really implemented it.

But we know it needs a transition period.

* * * Effectiveness of social practice and environmental protection.

55% respondents' attitude is that environmental protection supervision still needs to be improved and perfected.

Questions about the respondents' reaction.

They also put forward their own opinions.

First of all, we should learn more about knowledge, publicize environmental protection knowledge to people around us, and help * * * do a good job.

Secondly, the garbage in our life should be recycled separately.

Try to use recyclable daily necessities.

And try to avoid using disposable plastic products.

We should cherish plants and our surroundings.

Not eating wild animals is also a way to protect the environment.

Personally, we should pay attention not to do things that pollute the environment; Participate in environmental protection publicity activities; Always remember that protecting the environment is everyone's responsibility.

For * * * departments, we should adopt powerful, effective and law-abiding methods, change the concept of the masses, carry out few but precise publicity activities, rely on the masses, follow the mass line, do practical things for the people, do good deeds, and take practical actions as the best way.

Generally speaking, environmental pollution is the result of more than half of human activities, and we humans should bear certain responsibilities.

Only by maintaining the environment first can we take the road of sustainable development. At present, China's environmental pollution is serious and the situation is quite grim. We must realize that protecting the environment is the premise of developing industry, and protecting the environment means protecting the earth on which we live. Therefore, environmental protection should start from me and start from small things.

It can't be said that we won't pay attention to the environment until it is destroyed and can't be managed.

We should know that strengthening students' concept of loving human homeland and protecting nature from pollution is a basic project to promote and promote environmental protection.

Atmospheric resources, water resources, land resources and so on. , is the material basis of human existence; Forest resources, mineral resources and other resources provide a material basis for the continuous development of mankind and create a high degree of human civilization on the earth.

However, while developing and utilizing environmental resources, human beings have also brought a series of environmental problems to their living environment.

There are many pollutants that pollute the environment around us, such as a lot of domestic garbage, plastic bags (also called white garbage), disposable wooden chopsticks, disposable lunch boxes, peel scraps and so on.

There is no doubt that pollutants do great harm to the environment. For example, the rotting carcasses of animals will affect environmental sanitation and breed bacteria.

Disposable wooden chopsticks, which restaurants and restaurants think are very sanitary, will be thrown away after use, which will affect the city appearance and destroy the environment.

Now, like Liutuan Town and Qing Xiang Town, the power grid department has recently cancelled the use of water sprinklers.

The use of sprinklers has aggravated environmental pollution, polluted water resources and greatly endangered people's health.

Human activities will cause a large number of industrial, agricultural and domestic wastes to be discharged into water bodies and pollute them.

Another example is the Bohai Bay in the north of China, where local farmers fish in Shanghai due to the waste discharged by industry and printing and dyeing factories, resulting in a large number of fish and shrimp deaths. This kind of fish contains a lot of chemicals, which is harmful to people's health.

According to statistics, at present, more than 420 billion cubic meters of sewage is discharged into rivers, lakes and seas every year, polluting 5.5 trillion cubic meters of fresh water, which is equivalent to more than 14% of the total global runoff.

People's Republic of China (PRC) water pollution law promulgated by 1984 ...

It is not enough to write a composition according to the materials. I read two short stories about the use of animals in the newspaper. First, scientists in Hawaii discovered an animal named mongoose, which is better than cats in catching mice, so they put a group of mongooses in the crop fields infested with mice, but the harm of mice has not been alleviated.

Why? Further research by scientists found that mongooses and mice have different living habits. Rats move at night and sleep in caves during the day, while mongooses, on the other hand, move during the day and sleep at night, so they are not competent.

Secondly, a water plant in Switzerland introduced Nile elephant trunk fish to test the water quality.

Elephant trunk fish is very sensitive and can send out electric pulses like radar.

If the river is clean, the electric pulse emitted per minute is 400 to 800 times; The water quality was polluted, and the electric pulse immediately dropped to 200 times.

After being used in a water plant for a period of time, it was found that the elephant trunk fish could not detect the change of water quality at all.

It turns out that its detection ability is only suitable for the Nile, and it can't exert its power in any other waters.

The same is true of life. It is not enough to have the ability.

Ability also needs a suitable environment to be expected to succeed.

Human beings are so selfish that they trample on the resources accumulated by Mother Earth for thousands of years at will.

I hear Mother Earth crying! Last May, my parents took me to other places. When I arrived at my destination, I smelled a stench as soon as I got off the bus. It turned out that the stench from the river was beyond recognition.

People there told us that the river was originally clear, but when the construction team came here to develop it, it became like this.

Hearing this, I can't help but feel angry: why can human beings destroy nature for their own benefit! Don't those people care about nature? The next day, my parents and I went to the mountains to play, but garbage could be seen everywhere, and the bodies of those small animals were really too much! I saw another uncle drinking. When he finished drinking a bottle of wine, he threw it away. As soon as I saw it, I rushed to stop it, but he swore at me: "It's none of your business! A little boy came to take care of me, you are crazy! " Just then, several uncles and aunts who were watching came over. They advised their uncle together. Uncle blushed. He picked up the empty wine bottle and threw it into the trash can.

I appeal to the blue sky: human, wake up! Do you really want our mother earth to be in ruins? We only have one home-the earth! I love Mother Earth. There is a beautiful blue planet in the universe. That's our mother earth.

Our mother earth is beautiful! There are high snow peaks, terraced fields, dense forests, winding rivers and blue sea.

How beautiful our mother is! Such a beautiful home, but some people don't know how to cherish it.

In some areas, deforestation still exists. For their own personal interests, they don't care about the earth where human beings live for a long time. They didn't expect that today's behavior will cause soil erosion tomorrow, make sandstorms fly all over the sky, make the air no longer fresh, make the water no longer green, and make the sky no longer blue.

When the flood came, many rare animals and plants disappeared, which caused great danger to our human survival. Is this scene what everyone wants to see today? I don't think so.

But why do those people chop down trees indiscriminately? Because they don't realize the close relationship between the earth and human beings.

The earth is the planet where we human beings live. Destroying the earth is destroying our home.

If there is no life on the earth, human life will be terminated, so destroying the earth is equivalent to shortening human life.

Look, Mother Earth is crying. Listen, Mother Earth is crying.

We should quickly wipe away tears for our mother, not only to stop the phenomenon of deforestation, but also to replace machetes with shovels and buckets, to plant trees in large areas and protect the ecological environment.

Let's unite as one, starting from everyone and starting from every little thing.

Protect our mother earth! Look, the mountains are green again, the water is green again, the birds are flying back, and mother is moving again.

Look, Mother Earth smiled. I love Mother Earth.

The earth is the source of life. Without it, there would be no us. The earth is the mother of each of us.

But, but now, what has Mother Earth become? Air pollution, turbid water, and large areas of forests have been cut down ... and the chief culprit of all this is the sons and daughters of the earth-human beings.

Do you love Mother Earth? I like it.

As children of 2 1 century, each of us should love the earth deeply.

It can be said that everything we have is given by the earth. We love the earth, so we should also protect it.

Faced with these cruel realities, we should start from every little thing around us, protect the earth, start from a small piece of paper that fell to the ground, and start from turning off the tap to prevent those water drops from flowing away in vain.

A few drops of water are nothing, and leaving the lights on for a while is nothing, but a few drops of water a day waste electricity for a while, and a year? How many years? How much is the water and electricity? Now water resources are scarce, and China is a country short of water. We should save every drop of water.

I love Mother Earth! I hope everyone thinks so.

It turns out that someone once said, "We have taken too much from Mother Earth and destroyed too much, and it will take revenge.

"Mudslides, droughts, rainstorms, earthquakes, tsunamis, sandstorms ... Tsunamis are the tears of Mother Earth, and earthquakes are the complaints of Mother Earth ... but who has listened to the complaints of the Earth? Listen to its wishes? We should listen to the voice of the earth and protect our only earth.

I love the earth and the home where we live.

Love her green mountains and green waters, love her green grass and blue sky ... I play and laugh with butterflies in the fragrant flowers in the field; In the lush forest, I chase and sing with birds; Early in the morning, I went for an outing in Yuan Ye with light steps. The mist filled the air, like a piece of white gauze floating gently in the air.

Sucking the flowers and enjoying the sunshine bath, I am intoxicated in this ecstatic dream; In the evening, I sat in a farmhouse with fragrant rice, looking up at the bright stars and listening to cicadas and frogs, as if I were in a fairy tale kingdom.

In spring, I sit on the back of a cow and listen to the pastoral melody and melodious flute on the endless grassland.

In summer, I sat in a boat, paddled the green lake, and watched the seagulls skim across the vast lake lightly; In autumn, I stand under the tree, expecting the golden leaves to fall one by one; In winter, I stand at the window and admire the snowflakes flying in the air.

My heart is drunk in this picturesque fairyland! Since ancient times, many poets and writers have been praising the beauty of the earth.

"Nature" has become the best material for them to write poems and compositions.

"The sky is wild, and the wind sees cattle and sheep.

"This poem tells the beauty of nature.

Painters like to draw a picture in the countryside with fresh air.

Once upon a time, people hacked and hacked, destroying the ecological balance of nature.

Dunes swallowed thousands of hectares of fertile land, and floods washed away lovely homes.

The earth should be in its prime, but she is obviously old.

Her beautiful forest hair has turned yellow and fallen off; Beautiful blue sea clothes were stained with oil; The solid atmospheric jacket was damaged to pieces. ...

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