| The house dust mites are closely related to the life of human beings. Some of them are important sanitary pests, such as the commonly detected Dermatophagoides farinae, D. pteronyssinus and Tyrophagus putrescentiae. These mites have been the main factors that cause asthma, anaphylactic rhinitis, pulmonary acariasis, intestinal acariasis, etc.Fujian Province locates at the southeast corner of the mainland of China. It is controlled by the subtropical climate, typically with high temperature and humidity, which provides the house dust mites a suitable environment of development, reproduction and spreading. However, there was no any information about house dust mites in the province. The aim of this study was to investigate the component of mites in houses of the province.We had collected dust samples from 197 residential houses (including 97 living rooms, 87 bedrooms, 62 kitchens), 27 dormitories, 17 offices and 9 hotels in 55 counties and cities of Fujian Province. The total number of samples were 395, of which 372 from floors, 10 from straw mats, 10 from vacuum cleaners and 3 from sofas. We used Berlese's funnels to extract mites. About 38.8% of total numbers of samples were found with mites. The places frequently detected with mites were residential houses (50.76%), dormitories (96.30%), offices (64.7%) and hotels (55.76%). The microhabitats frequently detected with mites were floors (37.2%), straw mats (50.00%), sofas (66.70%) and vacuum clearers (50.00%). The floorboards frequently detected with mites were soil floor (70.00%), ceramic floor (56.94%), cermet floor (40.00%) and wood floor (18. 75%). There were 27.83% of living rooms of residential houses with dust mites, 36. 78% of bedrooms and 27. 42% of kitchens. No statistical difference was observed among the number of mites found in the samples between houses, microhabitats, floors and rooms of residential house, however, it is significantly different between residential houses in different area of the province (x~2=...
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