Med Pr
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Comparative Study
[Synergistic effect of organic solvents and tobacco smoke on serum immunoglobulin levels in humans].
The IgG, IgA, IgM, IgD and IgE levels in the blood serum was determined using the radial immunodiffusion method--the Tri-Partigen and the Partigen plated produced by Behringin 49 male non-smokers, 47 subjects who had been smoking for more than 10 years, 19 non-smokers occupationally exposed to organic solvents and 41 smokers exposed to the above-mentioned chemical compounds. It was found that both tobacco smoke and organic solvents, when acting separately, diminish the IgA and IgG level in the serum. ⋯ In smokers occupationally exposed to benzene and its homologues the decrease in the IgA, IgG and IgM level in the serum was more significant than in those exposed to either tobacco smoke or organic solvents. The authors emphasize the role of smoking in the evaluation of the immunotoxic effect of various factors of industrial origin.
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The measurements of air pollutions in the rolling mill of non-ferrous metals aimed at the evaluation of occupational exposure to nickel and other metals (Cu, Zn, Mn, Mg) used during the production of nickel alloys. It was found that nickel fumes and dusts concentration can be the only hazardous factor for the workers' health. ⋯ Smelters (8 persons) at the stand of 97-99% nickel smelting are at the highest risk of the loss of health; average exposure of this group during 8 hours' shift may surpass 2 mg Ni/m3. Mean concentration in air of the fumes and dusts of copper, zinc, manganese and magnesium do not make a hygienic problem.
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[Determining the levels of permethrin and kadethrin in the air by the method of gas chromatography].
A gas chromatographic method for determination of permethrin and kadethrin in air has been developed. The method involves trapping in ethylene glycol, extraction with benzene and determination by electron capture gas chromatography on a Gas Chrom Q column coated with 4% DC-L-SX-3-0295. The determinability of the method amounts to 0.006 mg/m3 (permethrin) and 0.16 mg/m3 (kadethrin).
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The authors have presented results of examinations of the smell and taste senses in 547 petrochemistry, workers, and 100 cotton industry workers composing a control group. In both groups, those aged 26 -- 35, with long duration of employment, predominated. ⋯ Hyposmia has been found in 238 (43.5%) and anosmia in 50 (9.2%) subjects. In the control group, dysgeusia has been found in 69%, whereas anosmia in 24% of subjects.