Effects of Long-Term Dust Exposure on Human Respiratory System Health in Minqin County, China.
The aim of this study was to assess the effects of long-term sand dust exposure on human respiratory health. Dust events break out frequently in Minqin County, northwest China, whereas Pingliang City, northwest China, is rarely influenced by dust events. Therefore, Minqin and Pingliang were selected as sand dust exposure region and control area, respectively. The incidence of respiratory system diseases and symptoms was determined through a structured respiratory health questionnaire (ATS-DLD-78-A) and personal interviews. The subjects comprised 728 farmers (Minqin, 424; Pingliang, 304) aged 40 years or older, who had nondocumented occupational history to industrial dust exposure. Prevalences (odds ratio [OR], 95% confidence interval [CI]) of chronic rhinitis, chronic bronchitis, and chronic cough increased 9.6% (3.141, 1.776-5.555), 7.5% (2.468, 1.421-4.286), and 10.2% (1.787, 1.246-2.563) in Minqin comparison with Pingliang, respectively, and the differences were significant (p <.01).
a College of Earth and Environmental Science, Lanzhou University , Lanzhou , China.
Jinyu
J
Wang
Sheng
S
Li
Shigong
S
Wang
Kezheng
K
Shang
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000383:Agriculture; D000395:Air Pollutants, Occupational / Q000032:analysis*; D000818:Animals; D002681:China / Q000453:epidemiology; D002908:Chronic Disease; D004391:Dust / Q000032:analysis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000139:chemically induced / Q000453:epidemiology*; D016273:Occupational Exposure; D016017:Odds Ratio; D015995:Prevalence; D012140:Respiratory Tract Diseases / Q000139:chemically induced / Q000453:epidemiology*; D011795:Surveys and Questionnaires
D000395:Air Pollutants, Occupational; D004391:Dust
effects; human; long-term dust exposure; respiratory system health