进入初夏以后,天气变热,各种害虫孳生繁殖,人们都将过冬衣服整理洗净存放起来,为了防止虫蛀,常常在衣箱及衣服中放置“卫生球”(俗称臭球儿、樟脑丸),也有个别旅店及农户为防止跳蚤、蚂蚁叮咬把“卫生球”放置炕上各角落。“卫生球”的制造是以煤焦油中分离出来的精萘为原料压制而成的“萘丸”。根据国内外有关资料证实,“萘”是具有一定毒性的化学物质,对人体有害,除造成贫血等疾病外,还会损害中枢神经系统,特别是对婴 Into the early summer, the weather became hot, all kinds of pests breeding, people will be cleaned and stored in winter clothes up, in order to prevent moth-eaten, often in the clothes and clothes placed “health ball” (commonly known as smelly ball, mothballs) , There are individual hotels and farmers to prevent fleas, ants bites the “health ball” placed on each corner of the kang. “Health ball” manufacturing is refined from coal tar refined naphthalene as raw materials from the suppression of “naphthalene pill.” According to the relevant information at home and abroad confirmed that “naphthalene” is a certain toxic chemicals, harmful to humans, in addition to causing anemia and other diseases, but also damage the central nervous system, especially for infants