| influence of environmental characteristics and climatic factors on mites in the dust of air-conditioner filters. | to investigate mites in the dust of air-conditioner filters (macf) in china, a total of 652 dust samples were collected from six cities: guangzhou (n = 129), nanchang (n = 127), shanghai (n = 113), xian (n = 93), beijing (n = 93), and shenyang (n = 79). tarsonemus granarius was the most dominant species (87.2%). dermatophagoides pteronyssinus and dermatophagoides farinae only represented 7.0 and 3.0% of total mites, respectively. with latitude increasing, both mite occurrence rate (p < 0.001) an ... | 2009 | 19840146 |