Ventilatory Capacity Changes on Exposure to Cotton Dust

Barnes, Robert; Simpson, G. R.

doi:10.5694/j.1326-5377.1968.tb29001.x

Cited by 12 publications

(5 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The health effects of exposure to dust in Australian cottonseed mills was examined by Barnes and Simpson (1968). The first mill studied used hydrochloric acid to remove linters and anhydrous ammonia to neutralise the acid.…”

Section: Discussionmentioning

confidence: 99%

Respiratory health and dust levels in cottonseed mills.

Jones¹,

Carr²,

Glindmeyer³

et al. 1977

Thorax

View full text Add to dashboard Cite

Diem, L., and Weill, H. (1977). Thorax, 32,[281][282][283][284][285][286]. Respiratory health and dust levels in cottonseed mills. Four cottonseed mills in the southern United States contained high levels of total and respirable dust. A survey of 172 workers showed low prevalences of byssinosis (2-3%) and chronic bronchitis (4%). Mean baseline (out of dust) lung function values were normal. Mean functional declines over the working shift were present on Monday and absent on Friday, indicating an acute bronchoconstrictor response. Despite limitations in translating measured dust levels into estimates of individual exposures, the overall dose-response relationship seems to differ from that found in the cotton textile industry.Byssinosis may result from inhaling any of several vegetable fibres under a variety of occupational exposures. The cotton textile industry has been the locus of most of the systematic studies of the disease. Non-textile exposures to cotton dust have received little attention, probably because these operations are predominantly rural, dispersed, and seasonal, and have a high turnover of unskilled labour.As a result of the morbidity and disability from byssinosis in textile workers, governments have undertaken to regulate the permissible exposure to cotton dust. The major task is to define a safe and feasible limit of exposure. It is reasonable also to consider whether to apply the same standard to all sources of airborne cotton dust. The answer to this question should depend upon whether byssinosis is found in non-textile workers, and whether the dust-dose biologic-response relationship is similar to that in the textile industry.Cottonseed is an important product of cotton cultivation. Seed mills separate the raw cottonseed into 'linters' (attached short cotton fibres), hulls, and meats, the last being the source of oil and cake or meal. The early steps in processing involve removal of coarse trash by mechanical shakers, stripping the linters from hulls by revolving saws, and collecting the baling linters. These operations raise substantial amounts of dust. The cottonseed is not treated in any way before it reaches the mill. Study population and methodsIn the summer of 1975, we studied workers in four cottonseed mills in the southern United States. We attempted to recruit all workers in dusty jobs and a number of other cottonseed mill workers (thought to be only minimally exposed to dust) to serve as a comparison group. In three mills, we recruited as many workers as were willing to participate. In the fourth and largest mill, all workers in dusty jobs were recruited, and as many with minimal exposures as study time permitted. One hundred and seventy-two workers completed the interview; 153 completed function studies for inclusion in the Monday analysis (reasons for exclusion included having less than 40 hours off work before testing, or unexpected absence from work). Of these 153 workers, 145 were available for study on Friday of the same week.Frequency distributions of the ages and length o...

show abstract

Section: Discussionmentioning

confidence: 99%

Respiratory health and dust levels in cottonseed mills.

Jones¹,

Carr²,

Glindmeyer³

et al. 1977

Thorax

View full text Add to dashboard Cite

show abstract

“…The suggestion (3)(4)(5) that byssinosis and chronic bronchitis may be a problem in oil mills is difficult to evaluate. The observation by Noweir et al (12) that dust from seed handling operations in Egypt (73-590 mg/m 3) led to chest tightness and subjective symptoms in up to 30% of the workers in these areas also suggests potential respiratory problems.…”

Section: Resultsmentioning

confidence: 99%

“…Data on the total and fine dust levels in cottonseed oil mills have been published (1)(2)(3)(4). Data on the total and fine dust levels in cottonseed oil mills have been published (1)(2)(3)(4).…”

Section: Introductionmentioning

confidence: 99%

“…Data on the total and fine dust levels in cottonseed oil mills have been published (1)(2)(3)(4). Decreased FEV 1 (maximum forced expiratory volume in first second of exhalation) values among workers in several American and Australian oil and delintering mills (3)(4)(5) have been observed, and Jones et al (5) reported a low prevalence of chronic airways diseases among employees in five American oil mills. Decreased FEV 1 (maximum forced expiratory volume in first second of exhalation) values among workers in several American and Australian oil and delintering mills (3)(4)(5) have been observed, and Jones et al (5) reported a low prevalence of chronic airways diseases among employees in five American oil mills.…”

Section: Introductionmentioning

confidence: 99%

“…Data on organic and ash contents of dusts from two Egyptian oil mills have been published by Noweir et al (2), who also found that dust generated in cottonseed handling (loading and unloading) operations in oil mills led to respiratory complaints, but dust from the grinding and oil extraction operations was inert. The high proportion of smokers included in the Australian surveys (3,4) and high dust levels (2-4) make interpretation of the health effects difficult. The high proportion of smokers included in the Australian surveys (3,4) and high dust levels (2-4) make interpretation of the health effects difficult.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Chemical composition of dusts from cottonseed oil mills

Brown

Piccolo

Tripp

et al. 1977

J Americ Oil Chem Soc

View full text Add to dashboard Cite

AND SUMMARYThe proximate chemical composition of total dust samples from five Texas cottonseed oil mills was determined. Dust compositions were highly variable and were affected more by the processing step than by differences among mills. Composition of cleaning room dusts reflected differences in soil minerals. Typical inorganic values were: silicon (12%), aluminum (0.5%), and iron (0.7%). Delintering dust was highest in cellulosic materials (40%), whereas the 23% protein composition of the hulling dust showed the influence of kernel fragments. Baling dust contained large amounts of cellulose (38%) and noncellulosic organic constituents (36%).

show abstract

Cotton dust standards for the raw cotton industries

Wakelyn

1982

J Americ Oil Chem Soc

View full text Add to dashboard Cite

In June 1978, OSHA promulgated 2 new, far more severe, standards for occupational exposure to cotton dust. The Supreme Court recently upheld the cotton dust standard for general industry. However, other court or administrative actions have invalidated the standard, or otherwise delayed its enforcement, for all sectors except textile mills and some downstream manufacturing operations. OSHA is undertaking a review of the standard. How this review affects the various segments of the cotton industry is discussed.

show abstract

Ventilatory Capacity Changes on Exposure to Cotton Dust

Cited by 12 publications

References 1 publication

Respiratory health and dust levels in cottonseed mills.

Respiratory health and dust levels in cottonseed mills.

Chemical composition of dusts from cottonseed oil mills

Cotton dust standards for the raw cotton industries

Contact Info

Product

Resources

About