Grain Dust and Lung Health: Not Just a Nuisance Dust
نویسندگان
چکیده
منابع مشابه
Exposure to grain dust and changes in lung function.
Respiratory symptoms and lung function were assessed in 41 seasonal grain handlers and related to duration of employment and level of exposure to grain dust. Ten public works department employees, not exposed to grain dust, were examined during the same period. Respiratory symptoms, forced expired volume in one second (FEV1), and bronchial responsiveness (dose of methacholine provoking a 20% fa...
متن کاملGrain dust and respiratory health in South African milling workers.
Respiratory health was investigated in 224 grain milling workers. The likelihood of respiratory symptoms and chronic airflow limitation was raised for workers exposed to dust independent of the effects of smoking. Smokers were more likely than non-smokers to respond to a bronchodilator at the end of the working week. Dust was more strongly associated with most abnormal outcomes than was smoking...
متن کاملAn environmental nuisance: odor concentrated and transported by dust.
Intensive swine production generates odorous emissions which flow from the buildings housing the animals. High ventilation rates bring in fresh air, remove heat and moisture and enhance pork productivity. Numerous compounds contribute to the uniquely offensive odors from swine facilities, including fatty acids, amines, aromatics and sulfur compounds. Dust particles, which originate predominantl...
متن کاملFrequency and Causes of Grain Dust Explosions
Grain dust explosions at elevators are in reality a series of explosions. The first explosion referred to as the "primary explosion" is usually small with pressures less than 2 pounds per square inch, (psi). It propagates a pressure wave and fire front. The pressure wave moves away from the location of the primary explosion at a speed of about 1000 feet per second (fps) while the fire front fol...
متن کاملDust sampling and lung disease.
No instrument for sampling airborne dust or mist collects a sample which is truly representative of all the particles present. There are errors associated with the random variation of the cloud in time and position and instrumental errors due to the act of sucking the cloud into the sampling apparatus or to inherent failings of the dustseparating or measuring mechanism which cannot be entirely ...
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ژورنال
عنوان ژورنال: Canadian Respiratory Journal
سال: 2007
ISSN: 1198-2241
DOI: 10.1155/2007/931094