Formaldehyde is a highly toxic substance, and formaldehyde ranks second in the priority control list of toxic chemicals in China. Formaldehyde has been identified as a carcinogenic and teratogenic substance by the World Health Organization and is a recognized source of allergic reactions and one of the potential strong mutagens. Mini Tiller,Power Tiller Price,Power Tiller Machine,Power Tillers & Cultivators Henan Qianli Machinery Co.,Ltd. , https://www.chalionagri.com
Studies have shown that formaldehyde has a strong carcinogenic and cancer-promoting effects. A large number of literatures indicate that the effects of formaldehyde on human health are mainly manifested in olfactory abnormalities, irritation, allergies, abnormal lung function, abnormal liver function and abnormal immune function. When the concentration reaches 0.06 -0.07 mg/m3 per cubic meter of air, mild asthma occurs in children. When the formaldehyde content in the indoor air is 0.1 mg/m3, there is odor and discomfort; when it reaches 0.5 mg/m3, it can irritate the eyes and cause tearing; when it reaches 0.6 mg/m3, it can cause throat discomfort or pain. Higher concentrations can cause nausea and vomiting, cough and chest tightness, wheezing and even pulmonary edema; when it reaches 30 mg/m3, it will immediately cause death.
Long-term exposure to low-dose formaldehyde can cause chronic respiratory diseases, causing nasopharyngeal carcinoma, colon cancer, brain tumors, menstrual disorders, nuclear mutations, DNA single-stranded cross-linking and DNA-protein cross-linking and inhibition of DNA damage repair, pregnancy Syndrome, causing neonatal chromosomal abnormalities, leukemia, causing memory and mental decline in adolescents. Among all contacts, children and pregnant women are particularly sensitive to formaldehyde and the harm is even greater.