[Composition and diversity of Acaroid mites' communities in indoor environments of kindergartens in Wuhu City].

Objective: To understand the breeding situation of Acaroid mites in indoor environments of kindergartens in Wuhu City, so as to provide the evidence for its prevention and control.

Methods: From March to June and September to December in 2014, dust samples were collected from 15 kindergartens of 3 ranks every month. Acaroid mites in the samples were isolated, identified and counted.

Results: Totally 360 samples were selected, and 169 samples (46.94%) had mite infestation. Pyroglyphidae accounted for the most in the population, with the breeding rate of 45.00%. Totally 18 504 mites were found, and Dermatophagoides farina and Dermatophagoides pteronyssinus were the dominant species, with the composition ratios of 30.21% (5 590 mites) and 17.83% (3 300 mites), respectively. The third-ranked kindergartens were in the most serious situation concerning with 81.67% (98/120) of the breeding rate of Acaroid mites. The differences were statistically significant among the kindergartens with different ranks (F = 6.048, χ2 = 73.523, both P < 0.05). There were no significant differences about the Acaroid mite population among different grades in kindergartens (F = 0.132, χ2 = 2.377, both P > 0.05).

Conclusion: Acaroid mites in the kindergartens in Wuhu City were in serious condition, and the population and species composition of Acaroid mite community is influenced by the human behavior and indoors environments.