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甲醛危害防控

网址:www.chujiaquan58.com  2019-12-09  作者:admin    阅读:

甲醛危害防控
Formaldehyde hazard prevention and control
甲醛毒理学资料
Toxicological data of formaldehyde
甲醛的主要危害表现为对皮肤粘膜的刺激作用。甲醛在室内达到一定浓度时,人就有不适感。大于0.08 mg/m³的甲醛浓度可引起眼红、眼痒、咽喉不适或疼痛、声音嘶哑、喷嚏、胸闷、气喘、皮炎等。新装修的房间甲醛含量较高,是众多疾病的主要诱因。
The main harm of formaldehyde is its irritating effect on skin and mucous membrane. When formaldehyde reaches a certain concentration indoors, people will feel uncomfortable. Formaldehyde concentration greater than 0.08 mg / M? Can cause redness of eyes, itching of eyes, discomfort or pain of throat, hoarseness of voice, sneezing, chest tightness, asthma, dermatitis, etc. The formaldehyde content in newly decorated rooms is high, which is the main cause of many diseases.
急性毒性:
Acute toxicity:
LD₅₀:800mg/kg(大鼠经口),2700mg/kg(兔经皮);LC₅₀:590mg/m³(大鼠吸入)。
LD ₅: 800mg / kg (rat oral), 2700mg / kg (rabbit skin); LC ₅: 590mg / m3 (rat inhalation).
人吸入60~120mg/m³,发生支气管炎、肺部严重损害。
Inhalation of 60-120mg / M 3 caused bronchitis and severe lung damage.
人吸入12~24mg/m³,鼻、咽黏膜严重灼伤、流泪、咳嗽;人经口10~20mL,致死。
People inhaled 12-24mg / M ~ 3, nose and pharyngeal mucosa were severely burned, shed tears and coughed; people inhaled 10-20ml, and died.
甲醛浓度过高会引起急性中毒,表现为咽喉烧灼痛、呼吸困难、肺水肿、过敏性紫癜、过敏性皮炎、肝转氨酶升高、黄疸等。
High formaldehyde concentration can cause acute poisoning, which is manifested as sore throat, dyspnea, pulmonary edema, Henoch Schonlein purpura, allergic dermatitis, elevated liver transaminase, jaundice, etc.
亚急性和慢性毒性:
Subacute and chronic toxicity:
大鼠吸入50-70mg/m³,1小时/天,3天/周,35周,发现气管及支气管基底细胞增生及生化改变; [4]
After inhalation of 50-70mg / M 3, 1 hour / day, 3 days / week and 35 weeks, proliferation and biochemical changes of basal cells of trachea and bronchus were found; [4]
人长时间吸入20-70mg/m³,会引起食欲丧失、体重减轻、无力、头痛、失眠; [4]
Long term inhalation of 20-70mg / M 3 will cause loss of appetite, weight loss, weakness, headache and insomnia; [4]
人长期吸入12mg/m³,会引起嗜睡、无力、头痛、手指震颤、视力减退。 [4]
Long term inhalation of 12mg / M 3 will cause drowsiness, weakness, headache, tremor of fingers, and vision loss. [4]
甲醛有刺激性气味,低浓度即可嗅到,人对甲醛的嗅觉阈通常是0.06-0.07mg/m³。但有较大的个体差异性,有人可达2.66mg/m³。长期、低浓度接触甲醛会引起头痛、头晕、乏力、感觉障碍、免疫力降低,并可出现瞌睡、记忆力减退或神经衰弱、精神抑郁;慢性中毒对呼吸系统的危害也是巨大的,长期接触甲醛可引发呼吸功能障碍和肝中毒性病变,表现为肝细胞损伤、肝辐射能异常等。
Formaldehyde has pungent smell, which can be smelled at low concentration. The olfactory threshold of human to formaldehyde is usually 0.06-0.07mg/m3. However, there are great individual differences, some of them can reach 2.66mg/m3. Long term and low concentration exposure to formaldehyde will cause headache, dizziness, fatigue, sensory impairment, immunity reduction, drowsiness, memory loss or neurasthenia, mental depression; chronic poisoning is also a great harm to the respiratory system, long-term exposure to formaldehyde can cause respiratory dysfunction and liver toxic lesions, manifested as liver cell damage, abnormal liver radiation energy, etc.

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