INDUSTRIAL POISONS
In the case of poisonous gases and fumes the necessity becomes even greater for proper prophylactic measures. The methods used in dusty trades may be here employed, but with greater care. All poisonous materials should be eliminated as far as possible and less objectionable material substituted. This may be done in a great many instances without decreasing the value of the article manufactured. An illustration of this is in the substitution of red phosphorus for the use of the more poisonous yellow phosphorus in the manufacture of matches. This eliminates danger from phosphorus poisoning.
Price states: “The chief industrial poisons are lead, arsenic and mercury, although phosphorus, copper, zinc, brass, and chromium poisoning are frequently met with in various industries.”