Summer caution using mosquito

Also a year in summer, use mosquito repellent is many people's choice.

However, the long-term use of mosquito coils suitable? recent authors write articles that use an incense smoke particles given off is equivalent to 100 cigarettes, it frees of ultrafine particles may enter the body of the lungs, the short term can cause asthma, you may cause cancers.

As far as I know, natural pyrethrins is the oldest botanical insecticides, pyrethrum flowers of active ingredients, their chemical structure to the 1940s was identified; 20th century 50-60 's, there are some compounds have successfully developed, known as pyrethroids.

Pyrethroids on insects have strongly entomophila, their mechanism of action of destroying insects normal physiological function of the nervous system to the excitement, spasm to paralysis and death. Pyrethroid toxicity on humans is low, but swallowed with or without protective field for a short period of time, when the chemical concentration in the contacts mode, may lead to acute poisoning. But so far haven't pyrethroid long-term low-dose exposure causes chronic poisoning or cancer.

Research has shown that rat brain development before birth at a critical period of exposure to low doses of pyrethroid insecticides and could lead to learning and memory impairment.

Researchers have also pointed out that the birth of early exposure to low doses of fenvalerate, affects mouse adult space and memory.

However, advocates the use of mosquito repellent argued, is to ensure that people into summer and necessities of life.

And, at present our mosquito coils production process has been greatly improved, the original use of wood powder, Elm bark powder, sticky tree root powder replaced with charcoal powder, dust content significantly reduced. Experimental data shows that a mosquito incense in their combustion smoke and averaged 37.2mg/m3, the only previous 1/5 to 1/10.

Some researchers have used gas chromatography and mass spectrometry, determination of different mosquito smoke of organic pollutants, found that smoke and smokless combustion produces organic pollutants vastly to smoke mosquito species is contained.

Which only smoke-free blank mosquito coils to fiber main detecting combustion products 1, 6-dehydration-β-D-glucose chromene, smoke blank is detected in the mosquito has toluene, xylene, phenylacetaldehyde organic pollutants exist, indicating that the smokless may be in use is relatively safe.

Since there are mosquito exists, the application needs, mosquito coils on mosquito coils security arguments are bound to continue.

When the families of infants and young children or older frail elderly, this author recommends that may wish to consider other ways of mosquito repellent. Today, along with the improvement of people's living standard, air-conditioning plus mosquito nets believe can help people to safety in the summer. Of course, the most radical way or to eliminate mosquitoes from the source.

(Practice editing: wangjia Wei)