Kindergarten Indoor Air Detection - The third question is how to deal with other problems caused by the increase of children's indoor activities.
In most kindergartens, when the haze is severe, children's outdoor sports behavior will be reduced, so how to deal with other health risks? A survey of 16 kindergartens in Jinan showed that children spent more than eight hours in kindergartens. The indoor space of kindergarten is limited. When dozens of children stay in poorly ventilated rooms for a long time, the indoor carbon dioxide concentration will rise rapidly, especially in winter and summer.
Carbon dioxide concentration increases from time to time, making people stay indoors drowsy, showing dizziness, limb weakness, inattention and other symptoms, while severe hypoxia will cause shortness of breath, chest tightness, headache and other phenomena, and make the body immune ability to fall, but also affect children's intellectual development.
As far as children's health and growth are concerned, the air environment in kindergartens is very important. A pediatric expert mentioned that "in many cases, children in kindergartens are more likely to be infected with colds. Because of the dense number of children in kindergartens, children's common diseases such as cold, hand, foot and mouth disease are easily transmitted to each other."
Indoor Air Detection in Kindergartens: The Impact of Hazardous Substances on Children's Health
1. Formaldehyde emission pollution in indoor air can cause respiratory diseases such as nasopharyngeal discomfort, cough asthma, acute and chronic bronchitis in children, skin allergy, cornea and conjunctiva congestion and inflammation in children. When the pollution is serious, it can cause nausea, vomiting and gastrointestinal dysfunction in children.
2. Benzene in indoor air. Benzene is a toxic substance released by the World Health Organization, which can cause cancer and mutation. Benzene is a major cause of the increase in childhood leukemia in recent years. At the same time, benzene compounds have been recognized by the World Health Organization as intense carcinogens.
3. TVOC (Total Volatile Organic Compounds). There are more than 100 kinds of volatile organic compounds in indoor air. It is an important reason for the formation of children's nervous system, blood system and acquired heart disease. Short-term exposure to excessive volatile organic compounds (VOCs) gas will present different levels of eye discomfort, dry throat, shortness of breath, asthma headache, anemia, dizziness, fatigue, edema and other symptoms; long-term exposure can lead to the onset of cancer.
4. Radon. Radioactive inert gases in the indoor environment, which are heavier than air, are often suspended in the air below one meter. Children are more likely to inhale radon than adults because of their height. Excessive radon pollution can cause lung cancer.
5. Lead, a heavy metal element in paints and interior wall paints, can cause children to have low immunity, slow growth, difficult learning and low IQ. It may also cause children to show personality changes, become irritable and show aggressive behavior.