Mild cases can lead to loss of appetite, weight loss, weakness, limb aches, pallor, frequent dizziness, nausea, vomiting, diarrhea, abdominal distension, abdominal pain, constipation, indigestion, insomnia, metallic taste in the mouth, lead lines in the gums, obvious anemia and nervous system diseases; , obvious liver and kidney diseases, cardiovascular organic diseases, etc. Severe cases can lead to obvious anemia and organic diseases of the nervous system; Obviously liver and kidney diseases, cardiovascular diseases, respiratory diseases, and even mental decline, especially lead poisoning in children will seriously affect IQ, and the IQ of children may be about 20% lower when they grow up.
When the content of lead in children's blood exceeds 0/00 microgram per liter/kloc, it belongs to lead poisoning in children. According to the investigation results in recent years, the level of blood lead exceeding 100 μ g/L is about 30%. However, we also observed how high it is over 100 micrograms, and found that the proportion of children's blood lead above 250 micrograms/liter is still relatively low, not exceeding 5%. It can be seen that a considerable number of children in China are still in a state of low concentration lead poisoning for a long time. In fact, many people have been harmed by lead, but the symptoms are not obvious. We want to protect the next generation and keep people away from lead. Do you realize that you live in an environment prone to lead poisoning or have long-term unconscious consumption of food prone to lead poisoning? Please refer to the following:
1 Stay on the road and wait for the bus at work, especially on the road with heavy traffic, and inhale lead-containing automobile exhaust. Residents living on the roadside or near industrial areas. Use lead-free paint in house decoration, especially in children's bedrooms.
2 home walls are decorated with paint, or children's toys are painted to prevent paint chips from eating, because colored glaze and paint often contain a lot of lead.
Eat or drink canned food or drinks, and eat preserved eggs with lead.
Eat food exposed to the environment for a long time and some meat with poor quality inspection.
Drink the first tap water overnight, because this water contains high lead.
The food in the food bag did not prevent the words, pictures and trademarks from coming into direct contact with the food.
Lead is also found in plastic slippers, preserved eggs, popcorn, expired cans and snacks. Its greatest harm not only harms people's nervous system, heart and respiratory system, but also affects children's intellectual development.
The problem of lead poisoning in children is more serious than that in adults for several reasons:
1, children's metabolic rate is faster than that of adults, so they inhale toxic substances faster. For example, the absorption of lead in the gastrointestinal tract of adults is about 5- 15%, and that of children is as high as 25%.
Children's respiratory system and nervous system are not fully developed, so they are more vulnerable than adults. Eating the same amount of toxic substances by mistake, the lighter the weight, the deeper the poisoning.
3, children have the habit of biting, such as the outer layer of the pencil (painted outside, the refill is graphite), lead-containing utensils, easy to inhale toxins, so the probability of poisoning is high.
If you and your children or family members often live in the above environment or meet the above conditions, you should pay attention to whether you have signs of lead poisoning. In fact, lead poisoning is not terrible. The key is to know how to prevent and find effective ways to alleviate lead poisoning.