Is mosquito-repellent incense harmful to human body? Pray for the great gods.

In the hot summer, many people like to light mosquito-repellent incense to repel mosquitoes, but they don't know that this will do harm to the human body. In fact, the active ingredients of most mosquito-repellent incense are pyrethroid insecticides, as well as additives such as organic fillers, adhesives and dyes. Therefore, the smoke of mosquito-repellent incense contains many substances harmful to human body, which may induce asthma and other diseases. According to estimates, the amount of particles released by lighting a roll of mosquito-repellent incense is roughly equivalent to burning about 100 cigarettes. The released ultrafine particles can enter and stay in the lungs, which may lead to asthma in the short term and cancer in the long term. Secondly, there are carcinogens produced by incomplete combustion of mosquito-repellent incense base materials, and some compounds that can stimulate the upper respiratory tract will poison people's nervous system. In summer, it is best to use safe and natural methods to repel mosquitoes, such as using mosquito nets or screens to keep mosquitoes out; Or put a few boxes of open cooling oil and wind oil essence in the bedroom. Of course, in order to eliminate mosquitoes from the source, it is best to clean up the places where mosquitoes are easy to breed, especially the still water and blocked sinks. Teach you a few tricks to prevent mosquitoes and repel mosquitoes: □ Don't leave the water in the container at home for too long. If mosquito larvae are found, they should be scalded to death with boiling water. -Don't throw garbage in the shape of eggshells and containers. It is best to use a trash can with a lid. -Pay attention to the intersection of floor drain and sewer when living on the ground floor. Mosquitoes like to fly in dark places, and wearing dark clothes is easy to attract mosquito bites. Mosquitoes like to park near the window sill before dusk, and they like to park on objects with darker indoor surfaces after dusk. According to this rule, they will get twice the result with half the effort. -The drainage system of residential property should be checked, and it should be converted into culverts if possible, and the drainage ditch should be fortified with mosquito gates, and the sewer should be dredged every day if possible. All kinds of potholes, dead ponds, etc. It should be filled up, and if it is not satisfied, it is necessary to regularly apply pesticides. -Household aquatic plants should change water regularly. □ When using mosquito repellent drugs, it is best for the brand to use another drug to repel mosquitoes after two months of continuous use. □ If you want to travel far away, be sure to cover the toilet to prevent mosquitoes from laying eggs. ● Eating garlic can effectively repel mosquitoes, because mosquitoes don't like the garlic smell secreted by the human body. ● Oral vitamin B is excreted from sweat after physiological metabolism, which will produce an odor that mosquitoes dare not approach. Take vitamin B 1 ~ 2 tablets orally one hour before going to bed, but don't take them in large quantities for a long time. In addition, dropping a few drops of vitamin B solution in the bath can also prevent mosquitoes. Wear yellow, patterned and white clothes. In daily life, people are often bitten by mosquitoes, but people around them are indifferent, which is often the case. It turns out that mosquito bites have a lot to do with the color of clothes people wear. If you wear dark blue or brown clothes, you will be more vulnerable to mosquito bites. So you should wear light clothes in summer. ● Cleverly use cool oil and wind oil essence to put several boxes of uncovered cool oil or wind oil essence in the bedroom. Light mosquito-repellent incense, the smell is choking; Hanging mosquito nets makes the air dull. If you can drop a proper amount of essential balm on the whole mosquito before lighting it, the mosquito will not be choked, the room will be clear and the mosquito repellent effect will be good. If you can sprinkle a few drops of essential balm before entering the mosquito net, you can improve the air condition in the mosquito net and increase the mosquito repellent effect. ● Put mosquito repellent flowers. Before dusk, put 1 2 pots of blooming jasmine, Milan or roses indoors, preferably cordate telosma. Because mosquitoes can't stand the smell of these flowers and run away. ● Install orange bulbs indoors. Because mosquitoes are afraid of orange light, they can produce good mosquito repellent effect. ● Rub the dried Folium Artemisiae Argyi into rope shape, light it and put it indoors. Smoke can repel mosquitoes. ● Burning sun-dried tea leaves can drive away mosquitoes. ● Put 35 ml of sugar water or beer on the table or in an empty indoor wine bottle with many mosquitoes. When mosquitoes smell sweet wine, they will inject it into a bottle and be stuck to death by sugar water or beer. There are two kinds of mosquito-repellent incense: one is toxic mosquito-repellent incense, which is made of bhc powder, pesticide 223, DDT and other chemical pesticides. It can only disperse mosquitoes and has no killing effect, but its fog is harmful to human health, and frequent use will cause dizziness, nausea and other poisoning phenomena. Two: Safe mosquito-repellent incense is made of pesticides and other herbs, and its smoke can paralyze mosquitoes' nerves and lead to their death, which is harmless to human health. Their identification method is as follows: 1. Appearance: the safe mosquito-repellent incense has fine processing, uniform color and strong bending resistance, and the ignition time is about 7-8 hours. If the surface of mosquito-repellent incense is rough, the structure is loose, there are impurities with larger particles (DDT crystal is fine powder), it is easy to break, or it goes out half before the ignition time, so it can be considered as toxic mosquito-repellent incense. 2. Smell incense: After the Chinese herbal medicine and pyrethrum mosquito-repellent incense are ignited, the smoke is not strong, and people can smell a natural fragrance without pungent and dizzy feeling; However, DDT mosquito-repellent incense smells like mothballs after it is opened and ignited, which will make people dizzy after smelling it for a long time. 3. Distinguish from the ignition point: ignite mosquito-repellent incense with matches. Pure pyrethrum mosquito-repellent incense has only yellow flame and bluish-white smoke, while toxic mosquito-repellent incense has green flame and black smoke when burning. 4. Distinguish from the ashes of mosquito-repellent incense: the ashes of pyrethrum mosquito-repellent incense are white and gray; The ash of poisonous mosquito-repellent incense is black. 5. From the analysis of pest control effect: pyrethrum mosquito-repellent incense has obvious poisoning effect on mosquitoes, and it is not easy to see mosquitoes flying around after lighting; However, toxic mosquito-repellent incense is not as effective as pyrethrum incense after it is ignited by mosquitoes. Several questions about electric mosquito-repellent incense and mosquito-repellent incense: electric mosquito-repellent incense and mosquito-repellent incense have their own advantages. In terms of price, mosquito-repellent incense is cheaper, but electric mosquito-repellent incense tablets are more convenient and safer than open flames. Liquid mosquito-repellent incense tablets are more expensive, but they are welcomed by some citizens because of their convenience. However, from the effect, mosquito-repellent incense is stronger than electric mosquito-repellent incense. Many citizens think that electric mosquito-repellent incense is much less harmful to human body than traditional mosquito-repellent incense. According to experts, in fact, the principle of electric mosquito-repellent incense and traditional disc mosquito-repellent incense is the same, and they are all the same raw materials. The active ingredients of disc, liquid and electric mosquito coil incense are all chemical preparations containing insecticidal ingredients. The only difference is that their carriers are different. Therefore, it is unscientific to say that smokeless mosquito-repellent incense is less harmful than smoked mosquito-repellent incense, and that electric mosquito-repellent incense is less harmful than disc-type mosquito-repellent incense. However, some fake mosquito-repellent incense contains bhc powder and realgar powder, which will cause chronic poisoning. How to choose mosquito killing products? To supermarkets and shopping malls, all kinds of anti-mosquito products are dazzling. So, mosquito-repellent incense, electric mosquito-repellent incense, insecticidal aerosol ... which is better? Pan Kaiyou, chief physician of the Municipal Center for Disease Control and Prevention, replied: The effect is similar. Anti-mosquito products must be tested before they go on the market. The specific standard is KT50, that is, the time required to knock down half the mosquitoes in the experiment. The standard should be less than or equal to 4 minutes. It was found that the time required for mosquito repellent incense, electric mosquito repellent incense and insecticidal aerosol to knock down mosquitoes was actually similar. Many consumers complain that there are still mosquitoes at home after using anti-mosquito products. Chief physician Pan Kaiyou pointed out that to improve the mosquito repellent effect, the use method is very particular. If coil incense is used, put 1 coil every15m2. Over 15 square meters, you can order an extra plate of mosquito-repellent incense for more than 7 hours. Mosquito-repellent incense should be placed in the air outlet above. It is best to use it in an air-conditioned room. There are two kinds of electric mosquito-repellent incense: medicine type and tablet type. It is more convenient to change the liquid medicine 1 every 20-40 days than the tablet mosquito repellent, but the price of the liquid medicine is slightly higher than that of the tablet. When using the electric mosquito repellent in the room of 10- 15 square meters, you can cut the mosquito repellent into three pieces, that is, add a new piece in the middle every day and add two pieces used the day before. This can make full use of the nonvolatile mosquito repellent components in the center of the tablet and achieve the purpose of saving money. It is better to close the doors and windows of the room within 30-60 minutes after turning on the mosquito repellent. Used mosquito repellent tablets can be soaked in mosquito repellent solution for half an hour, and can be used again after being taken out and dried. Spraying mosquito killing liquid on the screen window can last for one month, and the liquid medicine is cheaper. However, no method can achieve the goal of completely preventing mosquitoes, and mosquitoes will also develop drug resistance, so different mosquito repellents or mosquito products can be used in turn at ordinary times. Are mosquito killing products poisonous? Many people will smell some smells when using these mosquito-killing products, and some people even can't stand it. It can be seen from the product packaging instructions that the main component of mosquito-repellent incense is 0.2% of d-allethrin, and in mosquito-repellent aerosol, the main components are 0.3% of fenvalerate and 0. 1% of permethrin. Looking at these chemical terms, most consumers will wonder: What are these ingredients and are they harmful to human body? Pyrethroid, the main component of mosquito-killing products, is a pesticide that can effectively kill mosquitoes and flies. There are many kinds, such as permethrin, permethrin and cypermethrin. These components belong to the pesticides recommended by the World Health Organization that can be used to control health pests and their vectors. The requirements for examination and approval of sanitary pesticides in China are relatively high, not only according to the pesticide list provided by the World Health Organization, but also referring to other countries such as the United States and Japan, and the examination and approval is very cautious. Pyrethroid mosquito killing products are safe for people. Chief physician Pan Kaiyou said that some people will feel dizzy and sore throat after using it, which is not caused by pyrethroids, but by solvents. At present, kerosene and alcohol are widely used solvents, both of which have stimulating effects on human respiratory tract. Some unscrupulous businessmen add organophosphorus, such as DDV, to kerosene solvent to improve mosquito killing effect, but organophosphorus is harmful to human body. So when you buy it, look at the number three first: pesticide registration number, enterprise standard number and local health approval number. Don't buy these sizes if you don't have them. When using, you should strictly observe the precautions, open the window, wash your hands and stay away from food in time. It is best to use physical methods to prevent mosquitoes at home, such as installing screens, hanging mosquito nets, using mosquito killers and electric mosquito swatter. If it really doesn't work, use alcohol-based mosquito repellent products. Old people and babies have weak respiratory resistance, so it is better to be conservative and use physical methods. How to use mosquito-repellent incense 1 First of all, if family conditions permit, try to use electric mosquito-repellent incense tablets or liquid mosquito-repellent incense, because these two kinds of mosquito-repellent incense are directly distributed by liquid medicine, and it is safer to burn without auxiliary materials. 2. When using mosquito-repellent incense, be sure to use it 2-3 hours before going to bed. If you use it while sleeping, mosquitoes will patronize you for 2 hours, because it takes more than 2 hours for the concentration of drugs in the air to work. 3. When using mosquito-repellent incense, the indoor air flow should not be too large. Packaging label of genuine mosquito-repellent incense (all sanitary insecticides are the same): 1, national pesticide registration certificate number; 2. Main ingredients. Authentic products must have these two signs, otherwise they are not genuine products (note that some signs have the words of eliminating font size or epidemic prevention, which is incredible). The correct way to buy mosquito-repellent incense: 1, don't trust advertisements too much. 2, look at the logo: two important signs, a, the approval number of the State Agriculture Committee; B: The main ingredients. This is the standard to distinguish between true and false goods. Correct use of mosquito-repellent incense: 1. Try not to use burning coil incense, and it is easy to produce harmful substances due to insufficient combustion. 2. Use mosquito-repellent incense 2 hours before going to bed, and try not to use it when sleeping (in order to light mosquito-repellent incense). 3, we should know that mosquito-repellent incense mainly drives away, not kills. 4. In order to kill mosquitoes, spray insecticides should be used, preferably water-based insecticides. Ordinary products, such as defective products, are harmful to people (some products emit benzene, xylene and freon, and the product label is not marked). There are few components in mosquito-repellent incense, and the order of toxicity (from large to small) is organophosphorus (trichlorfon/chlorpyrifos/natural enemies of pests)-carbamate (propoxur/mirex)-pyrethroid (cypermethrin/fenpropathrin /ES biothrin), and the dosage form is also the key. Liquid mosquito-repellent incense & electric mosquito-repellent incense > light mosquito-repellent incense. Recommended mosquito repellent incense: electric mosquito repellent incense; Liquid mosquito-repellent incense, liquid medicine is directly distributed without any assistance. The effective components of most mosquito-repellent incense (0.2%-0.4%) are pyrethroid insecticides, which are extracted from a pyrethroid insecticide. More than 99% of other substances are organic fillers, adhesives, dyes and other additives, so that mosquito-repellent incense can be smoldered without flame. What most consumers don't know is that the smoke of this mosquito-repellent incense contains four harmful substances, namely ultrafine particles (particles with a diameter less than 2.5 microns), polycyclic aromatic hydrocarbons (PAHs), carbonyl compounds (such as formaldehyde and acetaldehyde) and benzene. Severe cases can cause cancer. When repelling mosquitoes in summer, it is best to adopt the following six safe and natural mosquito repellent methods. ■ When resting, it is best to isolate mosquitoes with mosquito nets or screen windows, because mosquito nets can not only avoid mosquitoes and wind, but also absorb falling dust and filter the air, which is especially suitable for children, while screen windows can let fresh air into the room and harmful smoke out. ■ Use mosquito-repellent incense, pesticides, etc. In order to repel mosquitoes. It is best to choose indoors when no one is around to prevent poisoning. ■ You can put a few boxes of uncovered cool oil and essential oil in the bedroom, or put one or two pots of blooming cordate telosma, jasmine, Milan, mint or rose, and mosquitoes will avoid them because they can't stand their smell. ■ Eating garlic raw and taking vitamin B orally will be excreted from sweat after physiological metabolism, and it will also produce an odor that mosquitoes dare not approach. ■ It can clean up places where mosquitoes breed. Generally speaking, still water and blocked sinks are places where mosquitoes breed. Mosquitoes will lay eggs in still water and soon hatch into larvae. Therefore, clearing the stagnant water in front of and behind the house can effectively prevent mosquito breeding. ■ It is best to use mosquito-killing products such as "electric mosquito swatter" which is safe and has no toxic side effects to avoid mosquito-repellent incense poisoning. If mosquito-repellent incense, insecticide and insect repellent are used, low-toxic products should be used as far as possible to minimize the harm.