. Preventive medicine and hygiene. , type-founding, type-setting, and linotyping, from dye workswhere yellow colors are got from chromate of lead, from house, coachand ship painting, etc. PREVENTION The prevention of lead poisoning rests, in the main, upon the factthat the lead comes to the workman usually as dust, sometimes as fumesthrough the air, but it must be remembered that lead is also carried to ^ Grotjahn and Kamp, Band II, p. 60. J. A. M. A., Vol. \Y1, Xo. 17, April 29, 1911, 1240-1245. DISEASES OF OCCUPATION 1055 the mouth by deposits on the hands and other objects. Whether the lead
. Preventive medicine and hygiene. , type-founding, type-setting, and linotyping, from dye workswhere yellow colors are got from chromate of lead, from house, coachand ship painting, etc. PREVENTION The prevention of lead poisoning rests, in the main, upon the factthat the lead comes to the workman usually as dust, sometimes as fumesthrough the air, but it must be remembered that lead is also carried to ^ Grotjahn and Kamp, Band II, p. 60. J. A. M. A., Vol. \Y1, Xo. 17, April 29, 1911, 1240-1245. DISEASES OF OCCUPATION 1055 the mouth by deposits on the hands and other objects. Whether the leadenters the body by inhalation, by ingestion, or through the skin becomesmore of an academic than a practical question so far as prevention is con-cerned. The first essential then is to keep the air which the workman breathesand which surrounds him free of. lead. Most cases of lead poisoning-could be averted by a proper system of ventilation. Certain be carried on under hoods with a strong draft, or in cabinets, or. Fio. 148.—The Stone Industry. The workman is using a surfacing machine operatedwith compressed air. The strong blast of air keeps the granite clean, but gives rise toa great amount of dust. Of the mineral dusts granite is generally considered as mostirritating. (Mass. State Board of Health.) Special, rooms with an air current so arranged that the lead is kept awayfrom the mouth, nose, hands, and clothes of those who are exposed. On the part of the workman the prevention of lead poisoning con-sists in cleanliness of the hands and of the finger nails, frequent bathing,and the use of special clothing while at work. Care must be taken notto carry the fingers, which may be contaminated with lead, to the mouthand nose, and to thoroughly wash the hands before eating. Workmenshould never take their lunch in the rooms where there is a suspicion oflead in the air. In the ^e^ instances where the above precautions are notpractical respirators should be worn. C
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