某バナジウム精錬工場の環境調査

概要

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An investigation of the environment of the working place was made as part of the investigation of damages to health that had broken out in a certain vanadium refinery; and the following conclusions were obtained: When the atmospheric dust volume and V_2O_5 concentration by unit working step were measured with a high volume air sampler, V_2O_5 exceeded the threshold limit value given by ACGIH in the P.O. flake production step, whlie the measurement of V_2O_5 concentration during one-shift working hours with a low volume air sampler gave 64.3μg/m^3 even in the grinding step where the maximum concentration was found, and values under 10μg/m^3 in all the other steps. Such concentrations may be considered to have been derived from the fact that P.O. casting in accomplished in a short time, and that the fume and dust that are transiently produced at high concentrations are dispersed outdoors by spontaneous ventilation. Damages to health such as a high prevalence of green tongue appeared to have resulted from failure in exercising elementary sanitary care such as imperfect facilities for safety and sanitation, and failure to thoroughly enforce wearing of masks.
社団法人日本産業衛生学会の論文
1979-01-20