Pulmonary function response to cottons from different growing areas.
Bragg-CK; Perkins-HH Jr.; Castellan-RM
Proceedings of the Seventh Cotton Dust Research Conference, beltwide cotton production research conferences, January 3-4, 1983, San Antonio, Texas. Wakelyn PJ, Jacobs RR, eds. Memphis, TN: The National Cotton Council of America, 1983 Jan; :66-69
The effect on pulmonary function was studied in human subjects exposed to dusts from cotton grown in three different locations in the United States: Mississippi Delta, Texas High Plains, and California San Joaquin Valley. The cottons were processed through standard textile machinery in a model card room to produce picker laps typical of those used in textile mills and to simulate exposure conditions. An equal number of picker laps from each cotton was processed independently on two different cards using typical speeds and settings. Efforts were made to control dust concentrations to the 0.5mg/m3 level. Card rooms, remote rooms, and connecting air ducts were cleaned between each sampling. Subjects were exposed two different times for 6 hours each time to each of the cotton dusts. Preexposure and postexposure spirometry readings were taken for each subject. Differences in response to Mississippi, Texas, and California cotton were attributable to grade of cotton and not to area of growth. The effect of grade was particularly important in Mississippi and Texas cotton, but not so significant for California cotton. The authors conclude that use of panels of human subjects in tests such as these would be useful in gathering additional information on the causative agents of byssinosis.
Pulmonary-function-tests; Humans; Cotton-dust; Dust-inhalation; Airborne-dusts; Pulmonary-system-disorders; Biological-effects; Textiles-industry; Simulation-methods
Proceedings of the Seventh Cotton Dust Research Conference, beltwide cotton production research conferences, January 3-4, 1983, San Antonio, Texas