The validity of gravimetric measurements of respirable coal mine dust
| Autor: | H. E. Bumsted, W. C. Janes, K. M. Morse |
|---|---|
| Rok vydání: | 1971 |
| Předmět: |
Engineering
Coal mine dust Occupational Medicine business.industry Microscopic count Public Health Environmental and Occupational Health Environmental engineering Coal mining Sampling (statistics) Dust Environmental Exposure Coal dust Silicon Dioxide complex mixtures Coal Mining respiratory tract diseases Coal Mining engineering Air Pollution Methods Gravimetric analysis Humans business Specific Gravity Filtration |
| Zdroj: | American Industrial Hygiene Association journal. 32(2) |
| ISSN: | 0002-8894 |
| Popis: | While the gravimetric method of assessment of coal dust exposures is superior to the microscopic count method in the ease, speed, and precision of the final measurement, there are shortcomings in the validity of sampling and interpretation. Data and experience with the gravimetric method are presented to demonstrate the significance of these shortcomings in relation to the legal requirements and standards for use of this method in coal mines. Errors inherent in the sampling or introduced by inadequately trained technicians using the method can have unwarranted serious import on coal mine operations. The gravimetric method has not been sufficiently correlated against pulmonary response to inhaled dust in this country to validate a standard to be strictly enforced with possibilities of severe penalties. |
| Databáze: | OpenAIRE |
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