ISSN:0096-1736    

出版商:OVID    

年代:1977

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1977

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1977

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1977

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

After receiving reports of lead poisoning in two workers at a secondary lead smelter, we evaluated the health status of 38 current smelter workers and 87 of their household contacts by questionnaires, physical examinations, and laboratory tests. Fatigue, cough, and diarrhea were the most frequent symptoms in plant employees; each occurred in at least a third. The most frequent physical finding, hand tremor, occurred in 10 of 33 plant employees. Twelve employees had blood lead concentrations at or above 80 μg/100 ml, and 17 others had blood lead concentrations at or above 60 μg/100 ml. All physical signs possibly due to excess lead absorption were manifested by employees with blood lead levels of 60 μg/100 ml or greater, with one exception. Household contacts of employees had few symptoms suggestive of excess lead absorption.

ISSN:0096-1736    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

Although the carcinogenic properties of asbestos are presently attracting a good deal of attention, asbestosis is still the earliest lung disease resulting from exposure to it and its incidence in an exposed population is the most useful indicator of the degree of dust control exercised over a period of time.The diagnosis of asbestosis depends upon: (1) An adequate occupational exposure history. (2) Physical signs of pulmonary fibrosis. (3) Progressive radiological changes. (4) Confirmatory measurements of altered lung function.Asbestosis is a clinical entity and is readily diagnosed when all the above-mentioned criteria are met. Problems in diagnosis are encountered when one or more of the diagnostic criteria listed above cannot be substantiated. At the present time every effort is made to diagnose the disease in its early stages in the hope that removal from further exposure will prevent the direct and indirect complications.

ISSN:0096-1736    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

Spirograms were made in 103 chemical workers, 72 of whom had been exposed for years to chloromethyl ethers to various degrees. The end-expiratory flow rate was below 60% of predicted in one-third of the exposed men compared to only 3% of unexposed men. Smoking was a confounding factor. In 49 current cigarette smokers consuming less than one pack per day, the data suggested a dose-response relationship between chemical exposure and the frequency of low end-expiratory flow rate.

ISSN:0096-1736    

出版商:OVID    

年代:1977

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1977

数据来源: OVID

摘要:

The racial stratification of residues of total DDT equivalent, heptachlor epoxide, oxychlordane, dieldrin, beta-benzene hexachloride and lindane in human adipose tissue was studied. Samples of human adipose tissue were obtained from locations selected in the contiguous United States according to a stratified, proportionate-random survey design and chemically analyzed for selected organochlorine pesticides. The most marked case of racial difference in residue level was total DDT equivalent. Samples from Negros contained almost twice as much of this chemical as did samples from Caucasians. Racial stratification also was found in the frequency of lindane. Lindane was detected about twice as often in samples from Negros than in samples from Caucasians. Little racial differences were noted for residues of beta-benzene hexachloride, heptachlor epoxide, dieldrin and oxychlordane.

ISSN:0096-1736    

出版商:OVID    

年代:1977

数据来源: OVID