The toxicity of mosquito repellent incense should be paid attention to in summer

summary

With the coming of summer, there are more and more mosquitoes, and a variety of mosquito repellent products are on the market. Many mosquito repellent products are marked with "low toxicity" and "slight toxicity" on the packaging boxes. What harm does mosquito repellent products do to human body? Is mosquito repellent incense harmful to women, children and other special groups? Let's take a look at the following.

The toxicity of mosquito repellent incense should be paid attention to in summer

First: mosquito repellent incense ingredients, mostly pesticides. The best and most thorough anti mosquito method is environmental control, followed by mosquito net, mosquito swatter, mosquito lamp and other relatively safe physical methods, and finally by mosquito incense, aerosol, repellent and other chemical methods. Chemical methods are ranked last because they usually use a pesticide component, pyrethroids, which is slightly toxic. Pyrethroids can be metabolized out of the body, and it is not harmful to people when they are small. It is understood that mosquito repellent products, mosquito repellent incense, mosquito repellent and mosquito repellent spray are available on the market, and their active ingredients are chemical agents with insecticidal components -- pyrethroid. This kind of pesticide belongs to pesticides recommended by WHO, which can be used to control pests and their vectors. There are more kinds of pesticides, such as permethrin, pyrethroid and cypermethrin. The requirements for the approval of hygienic pesticides in China are not only based on the list of pesticides provided by the World Health Organization, but also refer to other countries such as the United States and Japan. In addition, pyrethroids can be metabolized and excreted out of the body. However, different mosquito repellent products rely on different carriers, use methods and additives, which may cause greater harm to human body. Some inferior mosquito repellent incense is toxic to the human body. When you buy it, you must go to the regular shopping malls, and it depends on whether you have the pesticide license number, production license number, standard execution number, etc.

Second: repellent, skin irritation. Repellent is a kind of medicine applied to the body to repel mosquitoes. The toilet water and mosquito repellent water commonly used by people are repellents, and its effective component is a kind of mosquito repellent ester called imonin. It can be applied to the bare skin, such as arms, face, neck, legs, etc. it is generally effective within 4 hours. The efficacy of repellent is related to the amount of human activity and sweating. If it is outdoors, the duration of efficacy will be shorter. Repellents also contain alcohol and other chemical components that are irritating to the skin. Long term use can block hair follicles and even induce dermatitis in sensitive skin. In addition, some manufacturers of toilet water also indicated that pregnant women should not use their products, and babies should not use them. Therefore, it is suggested that people should pay attention to whether there is allergy in use.

Third: disc mosquito repellent incense, strong stimulation. After heating, the smoke of the mosquito coil incense can make the mosquito's nerve paralyze and die. However, there will be smoke in the burning of the mosquito coil incense, which will damage people's nasal mucosa if used for a long time. Disc mosquito repellent incense can expel mosquito chemical components through combustion to achieve the purpose of mosquito repellent. The smoke generated after combustion contains inhalable particles, which may cause certain harm to human body and the environment, especially for infants, pregnant women, the elderly and people with respiratory diseases such as asthma. Therefore, do not use mosquito repellent incense in a closed room for a long time, and pay attention to ventilation when using mosquito repellent incense, so as to reduce the indoor accumulation of inhalable particles. In addition, disc mosquito repellent incense must be added with combustion supporting solvent (kerosene and alcohol are widely used now). Both of them can stimulate human respiratory tract, causing dizziness and sore throat. In order to improve the efficacy of mosquito control, some illegal businessmen add organic phosphorus, such as dichlorvos, to kerosene solvent. The efficacy of mosquito control is improved and the harm to people is also increased. Therefore, when using disc type mosquito repellent incense, it is better to use one piece (one disc) at a time. If it is difficult to use, or it emits pungent smell after burning, it should be stopped immediately. Some people mistakenly believe that mosquito repellent incense can completely kill mosquitoes by closing the door. In fact, it will leave harmful gases indoors for a long time and damage the body.

matters needing attention

Therefore, many manufacturers of mosquito repellent incense brands have targeted the special group of pregnant women and infants, and have launched special mosquito repellent incense, mosquito repellent incense tablets and mosquito repellent incense liquid under the banner of "non-toxic" and "special for pregnant women and infants". However, this is only a marketing method of manufacturers. Its raw material is still pyrethroids, and the principle of mosquito repellent incense is the same as ordinary mosquito repellent incense, which is only effective