According to reports, more than 300 children in Dapu Town, Hengdong County, Hunan Province, have been found to have excessive blood lead levels, while the “Meilun Chemical Factory†factory area adjacent to the village is full of smoke, and a large amount of gray smoke emerges from the roof of the workshop. To the Xiangjiang River, the villagers are highly skeptical about the pollution caused by children’s “lead poisoning†chemical plants. However, local officials said that the cause of excessive blood lead was not certain, and the biting of a pencil in a child's mouth "may also lead to lead."
The official's words led to an old topic, whether the pencil was made of lead or not. When I was in elementary school, there were many science education films that specifically talked about this. The earliest pencils were probably graphite ore used by ancient British people. They used these black stones to draw and write. Later, some people made strips of powder from these stones, which became a carbon pen and could be used for drawing. Later, the Germans and the French successively invented and improved the method of mixing graphite and clay to make pencils. Later, the Americans added a layer of wooden "clothes" to the outside of the pencil, which became the pencil of today.
Therefore, from the perspective of the production of pencils, there is no such thing as a little bit of lead. In fact, from a reasonable point of view, if the pencil really has lead, it is impossible to make stationery for the children. Because lead is very dangerous for children. Not only can children have mild mental or behavioral changes, but long-term exposure to lead and its compounds can lead to palpitations, irritability, and increased red blood cells. After lead invades the nervous system, insomnia, multiple dreams, memory loss, fatigue, and then develop into mania, blindness, confusion, coma, and finally died of cerebral vascular hypoxia. However, children's blood lead increase and its symptoms are often difficult to find in time by parents or doctors. Therefore, children's lead poisoning is called "hidden killer" abroad.
So why is the pencil called a pencil? This is actually a misunderstanding. Because the ancient Greeks and Romans held the lead strips in the wooden sticks and wrote them on paper, the pens were similar to modern pencils, so when modern pencils were introduced to Japan, they were called "pencils." And China is following the name of Japan.
Therefore, the pencil really has no lead.
That being the case, even the pupils know that the pencils are made of graphite and clay. So why do these Hunan officials think that the bite of a child in the mouth of a child "may also be super-lead"?
I think the most important reason lies in the civil service system in our country. First of all, at the entrance of civil servants, the so-called civil service examinations are all subjects that are inconceivable, but there is no basic knowledge of natural science knowledge. Therefore, civil servants may lack the scientific knowledge they deserve from the entrance; secondly, in civil servant management. Basically, there is basically no training for civil servants to provide the necessary natural science knowledge. This shows that it is inevitable that civil servants lack the necessary scientific knowledge. At the same time, China has not established a good scientific knowledge support system for civil servants and government departments. No consultants have specifically answered such questions on behalf of the government. This makes individual officials in our country completely limited to passive in answering such questions, and may eventually be ridiculed by the public.
In order to avoid this situation, it is better to serve the public. I believe that the assessment, training and support of civil servants' scientific knowledge should be strengthened, the natural knowledge assessment of civil servant examinations should be increased, knowledge training for on-the-job civil servants should be strengthened, and scientific advisors should be provided for government administrative officials. In this way, it will be beneficial to China’s scientific administration and science and technology to rejuvenate the country.
Finally, I suggest that parents of children with excessive blood lead should immediately take measures to reduce blood lead, such as driving lead and promoting lead discharge, etc., so that children’s intelligence and behavioral abnormalities may still be corrected instead of It will have a serious impact on future life.
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