Murray A B, Zuk P
J Allergy Clin Immunol. 1979 Oct;64(4):266-9. doi: 10.1016/0091-6749(79)90142-8.
Mattress dust collected at monthly intervals for 2 1/2 yr was examined for mites. Both Dermatophagoides pteronyssinus and D. farinae were found. There was a significant association between the presence of live mites and the relative humidity (RH): Live mites were seen only when the RH had been greater than or equal to 50% for at least part of every day during the month of collection. There was a seasonal variation in that live mites were found only in the warmer months and not in the winter. However, the peak in the mite population was consistent neither for month nor for numbers: In 1977 a slight peak in mite numbers occurred in October, while in 1978 the peak was higher and occurred in July. Use of data from previously published studies to preduct mite levels may therefore be misleading.
对在2年半时间里每月采集一次的床垫灰尘进行了螨虫检测。结果发现了屋尘螨和粉尘螨。活螨的存在与相对湿度（RH）之间存在显著关联：仅在采集月份中每天至少有部分时间相对湿度大于或等于50%时才能看到活螨。存在季节性变化，即仅在较温暖的月份发现活螨，冬季则未发现。然而，螨虫数量的峰值在月份和数量上都不一致：1977年螨虫数量在10月出现轻微峰值，而1978年峰值更高且出现在7月。因此，使用先前发表研究的数据来预测螨虫水平可能会产生误导。
