Mosquito incense

Suzuki, S., and Tomura, M., Studies on the measurement of charges on fine particles. I. Charge measurement of tobacco and mosquito incense aerosols by a charge spectrometer, Denshi Shashin Japan) 4, No. 2, 20 (1962). 

Pollution of the atmosphere is a frequent cause of trouble thus in 1929 the cattle dipping truck yards at Julia Creek, Queensland, were removed owing to contamination of the town atmosphere, dust samples from which disclosed 10 to 12 parts of arsenic per million.3 Chronic poisoning has also resulted from the inhalation of the fumes liberated on burning mosquito incense made from orpiment and sawdust.4 A systematic clinical and X-ray examination of furnace workers at the arsenic works at Freiberg, Saxony, revealed that the majority suffered from pustular and eczematous conditions of the skin and 80 per cent, showed ulceration and perforation of the septum of the nose, in spite of the provision of sponge respirators and protective clothing 5 arsenic was present in the hair and nails. 

The production and use of most POP pesticides have been prohibited in China, but DDT, HCB, chlordane, and mirex were still in production and use in 2003. DDT is used as an intermediate for producing Dicofol, anti-fouling paint, as an ingredient in some mosquito-repellent incense, and for malaria prevention (including export). HCB is never used as a pesticide in China, but it is used as an intermediate to produce sodium pentachlorophenol (Na-PCP), which is used extensively to kill snails in those places where schistosomiasis prevails. Owing to their specific... 

DDT 3236 2 459,000 Raw material for Dicofol, additives for paints and mosquito-repellent incense, and malaria prevention... 

After 1983, the Standing Committee of State Council decided to stop the application of DDT in agriculture. Thereafter, DDT was mainly used as a raw material to produce Dicofol, with a small portion consumed as raw material to produce paints, as additives to produce mosquito-repellent incense, and to prevent malaria. The Chinese Center for Disease Control and Prevention (CDC) has decided that DDT can be used in closed systems and indoor sites in small amounts to control disease vectors, but its outdoor use is forbidden to prevent pollution. Malaria control in China has been effective, and DDT has not been used by local CDCs since 2001. The sale and consumption of DDT in 2001 and 2002 are shown in Table 3.4. It is seen that 83.9% of DDT produced was used to produce Dicofol 8.5% of that was exported for malaria prevention, 2.5% was used to produce mosquito-repellent incense, and 3.9% was used to produce paints. The investigation of consumption in 10 provinces and cities of China indicates that DDT is no longer used for agriculture or termite control, and a small portion of DDT is still used to prevent malaria. For example, 380 MT of DDT was used to control malaria between 1997 and 2000 in Yunnan province. 

L. R. Lindsay et al. Evaluation of the efficacy of 3% citronella candles and 5% citronella incense for protection against field populations of Aedes mosquitoes. J Am Mosq Control Assoc, 12, 293, 1996. 

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