Document qm9M7QVgO5gQQro4JneDe5mmj

FILE NAME: Chemical Abstracts (CHAB) DATE: 1968 DOC#: CHAB059 OCUMENT DESCRIPTION: Abstract Originally Published in 1965 by Miller car is stationary and wnen it is moving. J. Geisler (Pol). The main constituents of the welding fumes generated Determination of carbon monoxide traces in air. Gh. Ciu- oaring automatic submerged arc welding are SiOt> Fe oxides, and handu and V. Rusu. Rev. Chim. (Bucharest) 16(11-12), 601-2 Mn, and F compds. Besides chem. analysis the concn. of gener ^ (1965)(Rom). The redn. of Ag p-sulfamidobenzoate (I) by CO ated fumes was detd. by a gravimetric and counting method, as V in alk. soln. was improved. The gas. mixt. was contacted with were the grain sizes of aerosols. The no. of allowable particles in the soln. of I in special wash bottles with a flat shape. The soln. 1 ml. of air surpassed the standard at all investigated work sta was prepd. by shaking 0.1 Ai Na sulfamidobenzoate with 0.1AT tions. The gravimetric permissible concn. of fumes was sur AgNOi and adding 0.1M NaOH (1 :1 :0.5 by vol.). Opalescence passed only at the station of the welder in the production hall. x or brown coloration demonstrated that the ppt. of I was not J. Pich shaken sufficiently before the alkalization. Samples were col-. Some chemical examinations of blood and urine in welders ^ lected in the bottles by pouring out the water in them at the operating the automatic submerged arc. Stanislaw Byczkowski, sampling place, and adding a 10-ml. aliquot of 1 soln. The Jerzy Krechniak, Barbara Massalska, and Tadeusz Mincer bottle was placed on its flat side and left for 6 hrs. The absorp (Med. Acad., Gdansk, Poland). Gdanskie Towarzyst. Nauk., tion of the soln. with respect to a standard soln. kept in a closed Wydzial Nauk. Mat.-Przyrodniczych, Rozprawy Wydzialu I I I tube, was measured at 420 m/i, Beer's law was obeyed for <8000 No. 1, 89-95(1964)(Pol). The degree of absorption of harmful ppm. at an error of 3% . By prolongation of the contact time, constituents from the surroundings was investigated by measure the sensitivity was increased, 20 hrs. being satisfactory for ment of some constituents in 29 welders operating automatic concns. < 1000 ppm. (the amt. of Ag soln. was doubled at equal CO welding, machines an av. of 5 years. In blood, the level of F, concn., indicating that the reaction rate decreased with time, Mn, and F- was detd.; in urine, the level of F, Mn and SO. in accordance with Henry's law). A less accurate but more An increased content of F in blood of 23 men was detected, in rapid method was developed on the basis of the rate at which the urine of 22 men. An increased level of Mn in blood was found in reagent colored, the duration between start of the contact and 24 men and in urine in 9 men. The level of blood Fe as well as of appearance of the full color, in comparison to lO^Af KjCrjOr, urine SO'- remained normal in all welders examd. No correla decreasing with increasing CO content of the gas (60 min. at tions between the welding experience and a content of the con 250 ppm., 20 min. at 1000, 10 min. at 3000, andsl min. at 5000 stituents in the physiol, fluids could be found. J. Pich ppm.). M. Lapidot Dynamics of the saturation of arterial blood with oxygen in Air pollution from waste-water treatment. Joe O. Ledbetter silicosis patients. T. Niculescu, I. Mihaila, and Z. Ciobanu (Univ. of Texas, Austin). Water Sewage IFentr 113(2), 43-5 (Dept. Hyg. Travail Maladies Professionelles, Bucharest, Ro (1966)(Eng). A review of air pollution resulting from the treat mania). Intern. Congr. Occupational Health, 14th, Madrid 1963 ment of waste waters. This pollution involves not only the (2), 637-40(Pub. 1964)(Fr). Tests of pulmonary ventilation notorious odors and the recognized volatiles but also the aerosol and similar procedures do not give definite data on O balance in emissions. The aerosols of most interest are probably bacteria. the blood. To obtain more accurate data, tests were done with Significant nos. of bacteria, including some pathogens, are emitted an Atlas oximeter on 46 silicosis patients. Six had suspected from activated sludge and trickling filter units. 17 references. silicosis, while 13, 17, and 10 had silicosis of the 1st, 2nd, and 3rd VNJZ degree, resp. For controls, 23 normal persons were tested. Detection of the strong carcinogens 1,2:4,5- and 3,4:9,10- The method was to inhale pure O, det. the time required for 100% dibenzopyrene in the atmosphere. P. P. Dikun (Inst. Oncol., O satn. of the arterial blood, then the time required for the blood Moscow). Vopr. Onkol. 12(1), 90-l(1966)(Russ). The title to return to initial levels of satn. In healthy controls, the av. compds. (I and II, resp.) were sepd. from air by the aspiration resting satn. was 96%. The same av. value was obtained for method, isolated by column or thin-layer chromatography and lst-stage silicosis. In 2nd- and 3rd-stage silicosis, the resting detected according to their fluorescent quasilinear spectra at arterial blood O satns. were 93 and 92%, resp. The min. O specified wavelengths (given). Ivo Hynie satn. during apnea was 90% for 1st stage silicosis and the. con Effect of asbestos on benzo[a]pyrene carcinogenesis m the trols and 88% for the more advanced stages of silicosis. In respiratory tract. Llonas Miller, William E. Smith, and Steven . normal persons, the O satn. increased by 2-3% during phys. W. Berliner (Fairleigh Dickinson Univ., Madison, N .J.). Ann. effort, while in the silicotics it decreased to 89, 87, and 74% of N .Y . Acad. Set. 132(1), 489-500(1965)(Eng). Time of appear max. satn. for 1st-, 2nd-, and 3rd-stage silicosis, resp. The ance and yields of papillomas and carcinomas in the respiratory physiol, and pathol. significance of the results is discussed. tract of hamsters after intratracheal injections of benzo [a]pyrene W. C. Tobie (I) are reported. Addn. of the chrysotile variety of asbestos to Occupational diseases in low-pressure [intaglio] printing from the injections gave results consistent with an hypothesis that this e the use of benzene and its nomologs. P. Thomaschewski. material promotes I carcinogenesis in the respiratory tract. Intern. Congr. Occupational Health, 14th, Madrid 1963(2), 828-30 Addn. of the amosite variety of asbestos to injections of I did not (Pub. 1984)(Ger). Old and new data on the use of CeH, and increase the yield of tumors in the respiratory tract. The yield PhMe in inks of the title printing process are considered. Since of tumors in the respiratory tract of hamsters treated with a CHt is of max. importance in producing occupational blood limited series of intratracheal injections of I decreased with time dyscrasias, the recommended solvent is PhMe contg. not over after discontinuation of exposure. This observation is of inter- `0.3% C#H. The max. allowable concn. of atm. PhMe is 200 est in relation to lung cancer risks in smokers who discontinue ppm. W. C. Tobie smoking. J. P. Feaster Progressive systemic sclerosis and pulmonary silicosis. R. Ozone and its importance to industrial hygiene. L. Grupinski Carini and N. Lo Martire (Univ. Siena, Italy). Med. Lavoro and W. Gutsch. Arbeitsschutz No. 7, 170-4(1965)(Ger). A 56(11), 708-15(1965)(Ital). A case is reported of pneumosilico review covering max. allowable concns., ozone concns. required sis associated with progressive systemic sclerosis. The appear for efficient disinfection, and destruction of excess ozone. 44 ance of pulmonary micronodules in a miner was followed in a few references. Herbert Puschmann years by a type of angioneurotic syndrome similar to that of Automatic submerged arc welding and the hazards of profes Raynaud's and secroderma. Rheumatoid tests were pos. and sional poisoning associated therewith. Stanislaw Byczkowski, Antoni Bohdanowicz, and Witold Senczuk (Med. Acad., Gdansk, Poland). Gdanskie Towarzyst. Nauk., Wydzial Nauk. Mat.-. Przytodniczych, Rozprawy Wydzialu 111 No. 1, 57-65(1964) (Pol). Many harmful compds. are produced by combination of fluxing agents of different compn. with the fragments to be welded. Most frequently present are CO, CO:, N oxides and F compds. Compds. of Fe, Mn, Si, F, and others were found in the welding fumes. J. Pich Determination of gaseous air pollution evolved in automatic submerged arc welding. Stanislaw Byczkowski, Maria Cempel, Jerzy Krechniak, and Krystyna Wrzesniowska (Med. Acad. Gdanske, Poland). Gdanskie Towarzyst. Nauk., Wydzial Nauk. Mot.-Przyrodniczych, Rozprawy Wydzialu I I I No._ 1, 67-75 (1964)(Pol). During automatic submerged arc welding, many volatile toxic compds. are generated, esp. CO, CO: H:F:, and N oxides. Quant, detns. of these compds. were carried out in air samples taken from various places near the automatic machine. The contents of CO, CO: and N oxides are lower than obligatory standards, but the amts, of H:F: considerably exceeds permissible concn. J. Pich the blood protein picture was characteristic of scleroderma. Leonard D. Pagnotto . Histological aspects of the kidney in silicosis. L. Ambrosi (Univ. Bari, Italy). Med. Lavoro 56(11), 716-26(1965)(Ital). Histol. examn. of kidneys from 60 deceased silicotic patients between the ages of 37 and 79 revealed slight degenerate tubular changes with the formation of hyaline casts, some mucopoly saccharide material around the glomerular loops, capsular en velope and the intertubular spaces of the medullary region, and increase in mast cells and infiltration of lymphocytes and plasma cells, and changes in stromal structures. Leonard D. Pagnotto Urinary concentration of iron and lead in a group of workers exposed to the risk of saturnism. E. Orlando, G. B. Raffi, and _M. Alessandri (Univ. Bologna, Italy). Med. Lavoro S6(ll), 732-7(1965)(Ital). Urinary Fe and Pb were detd. on 100 ce ramic workers exposed to Pb dust but who had no clin. or lab. evidence of Pb poisoning. Fe levels increased with Pb excretion and length of dust exposure. After 10 years Fe values leveled and then dropped off but were still higher than those in non i exposed individuals. Leonard D. Pagnotto Serum protein pattern in men chronically exposed to carbon Dust concentration on the working posts during automatic submerged arc welding. Stanislaw Byczkowski, Barbara Massalska, Jerzy Krechniak, and Tadeusz Mincer (Med. Acad., Gdansk, Poland). Gdanskie Towarzyst. Nauk., Wydzial Nauk. disulfide. Roman Smolik and Zdzislaw Plamieniak (Akad. Med., Wroclaw, Poland). Med. Pracy 16(6), 438-41(1965) (Pol). Electrophoretic examn. of serum protein pattern in 40 patients with occupational exposure to CS: revealed a distinct