9月30日，气象中心发布了今年下半年雾霾黄色预警。据气象中心介绍，从30日晚到1日，华北大部分地区的大气污染气象条件达到4级，部分地区达到5级，不利于污染物在空气中的扩散。河北、北京、天津、山西东部、山东西北部、陕西关中、河南北部等地大部分地区有中度霾，部分地区有重度霾。
On September 30, the National Meteorological Center issued the first yellow haze warning in the second half of this year. According to the National Meteorological Center, from the evening of the 30th to the 1st, the meteorological conditions of air pollution in most areas of North China reached level 4, and in some areas reached level 5, which is not conducive to the diffusion of pollutants in the air. In Hebei, Beijing, Tianjin, the east of Shanxi, the northwest of Shandong, Guanzhong of Shaanxi and the north of Henan, there are moderate hazes in most areas, and severe hazes in some areas.
消息一出，关注环境健康的朋友们又开始采取预防措施。口罩和空气净化器都有，但是很多朋友都不知道，除了雾霾对我们的生活和健康的严重影响，我们的家里也隐藏着隐患:
As soon as the news came out, friends concerned about environmental health began to take preventive measures. Masks and air purifiers are available, but many friends don't know that in addition to the serious impact of haze on our life and health, there are hidden dangers in our home:
1、化学因素、装修材料释放的甲醛、苯、氡气、二氧化硫、一氧化碳等有害气体对呼吸道有损害。
1. Chemical factors, formaldehyde, benzene, radon, sulfur dioxide, carbon monoxide and other harmful gases released by decoration materials are harmful to respiratory tract.
2、煤中含有大量的氟、砷等无机污染物，燃烧可污染室内空气和食物，吸入或摄入，可引起氟中毒或砷中毒。
2. Coal contains a lot of inorganic pollutants such as fluorine and arsenic. Combustion can pollute indoor air and food. Inhalation or ingestion can cause fluorosis or arsenic poisoning.
3、油烟，烹调油烟不仅妨碍一般健康，更重要的是它含有致病性突变。
3. Lampblack and cooking lampblack not only hinder general health, but also contain pathogenic mutation.
4. 房间不干净，容易滋生敏感的微生物。室内主要过敏原是真菌和尘螨。它可以引起哮喘或荨麻疹。
4. The room is not clean and easy to breed sensitive microorganisms. The main indoor allergens are fungi and dust mites. It can cause asthma or hives.
5. 臭氧(O3)是由室内设备如复印机和静电除尘器产生的。它是一种强氧化剂。对呼吸道有促进作用，尤其会损伤肺泡。
5. Ozone (O3) is produced by indoor equipment such as copiers and electrostatic precipitators. It is a strong oxidant. It can promote respiratory tract, especially damage alveoli.
7. 使用电器产生电磁辐射。高水平的辐射还会导致头晕、流涎、虚弱和失忆。
7. Use electrical appliances to generate electromagnetic radiation. High levels of radiation can also cause dizziness, salivation, weakness and amnesia.
8、粉尘、燃烧粒子、飞沫等污染物，与室内空气中的轻离子结合，形成重离子。前者在被污染的空气中只能停留1分钟，而后者可以停留1小时，这就增强了正离子的负效应:头痛、心烦、疲劳、血压升高、无精打采、注意力下降、工作能力下降、等。
8. Dust, combustion particles, droplets and other pollutants combine with light ions in indoor air to form heavy ions. The former can only stay for one minute in the polluted air, while the latter can stay for one hour, which enhances the negative effects of positive ions: headache, upset, fatigue, increased blood pressure, listlessness, decreased attention, decreased work ability, insomnia, etc.
9、室内物品挥发性有害因素一旦暴露在空气中，就会对其排放造成危害。
9. Once the indoor volatile harmful factors are exposed to the air, they will cause harm to their emissions.
10. 材料。一些水泥、砖、石灰等建筑材料中的原材料，本身就含有放射性的镭。释放到室内空气中，进入人体呼吸道，是肺癌的原因之一。
10. Materials. Some raw materials in building materials such as cement, brick and lime contain radioactive radium. It is one of the causes of lung cancer to release into indoor air and enter human respiratory tract.
12. 建筑材料中含有石棉，石棉会产生石棉纤维。石棉可引起肺癌，以及胸部、腹膜间皮瘤。
12. Building materials contain asbestos, which can produce asbestos fibers. Asbestos can cause lung cancer and mesothelioma of the chest and peritoneum.
13、装饰用品及装修装饰。常用的地皮、地砖、化纤地毯、塑料壁纸、绝热材料会损伤肝、肾、骨髓、血液、呼吸系统、神经系统、免疫系统，有的甚会致敏，引起癌症
13. Decoration supplies and decoration. The commonly used floor covering, floor tile, chemical fiber carpet, plastic wallpaper and thermal insulation materials will damage the liver, kidney, bone marrow, blood, respiratory system, nervous system and immune system, and some will even cause sensitization and cancer.
14. 生活和办公用品。例如，化妆品、洗涤剂、去污剂、剂、农药、纺织品、油墨、油漆、染料、涂料等都散发出甲醛等各种挥发性有机化合物，表面活性剂等。这些会通过呼吸道和皮肤影响身体。
14. Living and office supplies. For example, cosmetics, detergents, detergents, disinfectants, pesticides, textiles, inks, paints, dyes, coatings, etc. all emit various volatile organic compounds such as formaldehyde, surfactants, etc. These can affect the body through the respiratory tract and skin.
