Is the rain now acid rain?

Regarding the statement that "volcanic ash has drifted into our city, and the rainfall is acidic and can cause cancer," experts say that

It is a rumor that our city will drop cancer-causing acid rain

Recent rainfall Not acid rain.

It is said that spring rain is as precious as oil. The spring rain that fell for two days in a row did not make people feel happy. Instead, they felt panic. The reason for the panic came from a piece of crazy news: Iceland volcanic ash is falling. In our city, the rainfall is acidic and can cause cancer when it hits the skin! People who didn't know the truth began to spread rumors. As time goes by, more and more people spread the word, and more and more people believe it!

In order to find out the truth of the matter, the reporter interviewed authoritative experts in the environment, meteorology, medical and other fields. The experts conducted analysis from a scientific perspective.

There are rumors that acid rain is coming

On April 27th and 28th, our city ushered in two days of precipitation. However, these few showers, which were originally ordinary, were It brought panic to the citizens. People nervously told each other that the rain was very dangerous and life-threatening if they got caught in it. Those who had been accidentally caught in the rain seemed at a loss when they heard about it.

For a while, citizens were talking about it, "Have you heard? Today's rain is strong acid rain, which happens once in 750 years." "If you get wet, you will get skin cancer!" "What should I do? I was still on the road when it rained. Will my car get rusty if it gets wet?"

"From today to the 28th, please don't get exposed to the acid rain that occurs once in 750 years. The chance of skin cancer is very high. Because a volcano in Europe erupted, a large amount of sulfide was ejected into the atmosphere, forming a thick layer of volcanic ash at an altitude of 7,000 to 10,000 meters. Please pay attention and forward this information. Go out and care for everyone around you..."

Currently, this news is still spreading rapidly on the Internet. Thinking of the recent Icelandic volcanic eruption that has attracted global attention, many people suddenly feel that this news is justified. Evidence-based and conclusive.

The reporter searched the Internet and found that many forums, chat rooms, QQ platforms and personal blogs were rushing to forward this news. After a shower in Daqing in the past few days, many citizens invariably I received a text message with the same content.

Reader Ms. Qi told reporters that after receiving the text message, she not only forwarded it to her good friends immediately, but also immediately called relatives in other places to find out whether it was raining there and told them to make sure it rained. Be careful not to get caught in the rain.

Citizens are confused, rain gear is selling well

The reporter learned during the interview that rumors about carcinogenic acid rain have caused a significant increase in the number of customers buying raincoats recently.

During the interview, a woman who was choosing a raincoat in the Qingkelong Supermarket on Jingqi Street said: "My friend said that the recent rains are all acid rain, and asked me to be careful not to get wet on myself. I have always carried an umbrella, but today I listened to her advice and bought a raincoat.” The woman also told reporters that her husband and colleagues at work also received text messages with the same content. Although it is difficult to tell whether they are true or false, it is better to be careful. A parent of a student heard the reporter's conversation and came over to ask if the news about acid rain was true or false. He told the reporter that he asked his son to always keep an umbrella in his school bag, and told him to carry an umbrella home no matter how hard it rained.

A reporter came to a certain university and asked college students about acid rain. Some college students first told reporters about rumors of acid rain. "Many of our classmates have seen it on the Internet. The rain is very scary. Several people in our dormitory rarely go out when it rains." A sophomore girl majoring in English told reporters. She also added, "I heard that acid rain can damage the skin." Another male student majoring in Chinese Language and Literature, a junior, told reporters that he saw news about acid rain on the Internet, but also heard from many classmates To refute this rumor. "A classmate in our class said he took a PH paper and tested it, and there was no problem. But because we are all liberal arts students, no one believed what he said." He told reporters with a smile.

During the interview, the reporter also found that a small number of citizens did not take the news seriously. Mr. Chen, a citizen, said that after receiving the text message, he only glanced at it and deleted it. "That's a volcano in Iceland. How far away can it affect our Daqing? Impossible, this news is too false!" Mr. Chen said that in recent years, his mobile phone has been receiving all kinds of weird advertisements and fraudulent text messages. He has long since It's no longer strange.

Experts refute rumors that acid rain has not yet fallen

Is it true that acid rain has come to our city? In order to verify this, the reporter found experts from the environmental protection department and the meteorological department to learn more about the matter.

According to Qi Gang, deputy director of the Daqing Environmental Monitoring Center Station, there has been no acid rain in Daqing either before or in the past two days. The data shows that the pH value of rainfall is around 7, which is neutral, and the pH value of rainfall is less than 5.6 to be considered acid rain.

It is understood that the Municipal Environmental Monitoring Center has set up three monitoring stations in our city, namely at the Water Supply Research Institute of Daqing Petroleum Administration Bureau, Jianshe Building and Daqing Reservoir. The three monitoring stations must measure rain and snow every time and observe the rain situation at all times. If there is acid rain, it will be reported to the superior department and citizens will be notified in advance to make corresponding protective preparations. Therefore, citizens do not need to worry.

In addition, acid rain does have an impact on human health, but the impact is far less serious than rumors say. If it drops on the body, you will get skin cancer, and its impact is not so direct.

Qi Gang said that because acid rain itself is corrosive and is mainly destructive to buildings and metal objects, its impact on human health is potential and cannot have a big impact once or twice. , only living in an acid rain environment for a long time will irritate the human respiratory tract and skin and cause skin diseases. Moreover, even if acid rain with a pH value of less than 5.6 drops on clothes, it will not burn holes in them. Acid rain often occurs in the south, so citizens do not need to panic.

At the same time, meteorological experts said that since we are very far away from Iceland, even if there is volcanic ash drifting here with the atmospheric circulation, it will only be micron-level material, and it will only stay in the stratosphere and will not Causes acid rain.

In addition, volcanic ash has several diffusion paths and continues to spread during the transportation process. In this way, as the transportation distance is extended, the diffusion range becomes larger and the concentration becomes lower.

Zhang Shujun from the Dermatology Department of Daqing Traditional Chinese Medicine Hospital told reporters that there is no necessary connection between the components of volcanic ash and skin cancer, so the statement that "acid rain formed by volcanic ash can cause skin cancer in people" is unscientific and has no basis. .