Harving H, Korsgaard J, Dahl R
Department of Respiratory Diseases, University Hospital of Aarhus, Denmark.
Allergy. 1993 Feb;48(2):106-9. doi: 10.1111/j.1398-9995.1993.tb00694.x.
The concentration of house-dust mites (Dermatophagoides pteronyssinus) was investigated in 96 Danish homes with one or more members suffering from asthma. The air-exchange rates, humidity, and temperature were measured in all the homes. A positive correlation was found between indoor air humidity and mite concentration (P < 0.01), and an inverse correlation (P = 0.027) between house-dust mite concentration and indoor air-exchange was found. Homes of mite-allergic persons had a higher concentration of house-dust mites than did those of the non-mite-allergic group. House-dust mite concentration was above the proposed limit of 10 mites/0.1 g dust in 76% of the homes of persons allergic to mites and in 48% of the homes of nonsensitive persons. The high proportion of homes infested with house-dust mites suggests an increased prevalence of house-dust mites in Danish homes. The results support the concept that reduced ventilation in homes involves a risk of increased house-dust mite exposure.
在96户有一名或多名哮喘患者的丹麦家庭中，对屋尘螨（粉尘螨）的浓度进行了调查。测量了所有家庭的空气交换率、湿度和温度。发现室内空气湿度与螨虫浓度之间呈正相关（P < 0.01），且屋尘螨浓度与室内空气交换之间呈负相关（P = 0.027）。螨过敏者的家中屋尘螨浓度高于非螨过敏组的家庭。在76%的螨过敏者家庭和48%的非敏感者家庭中，屋尘螨浓度高于建议的每0.1克灰尘含10只螨虫的限值。屋尘螨滋生的家庭比例很高，这表明丹麦家庭中屋尘螨的患病率有所上升。研究结果支持这样一种观点，即家庭通风减少会增加接触屋尘螨的风险。
