Death from Dust

When the Pittsburgh Corning Corporation closed its asbestos insulation plant in Tyler, Texas, two years ago, it did an unusually thorough job of cleaning up after itself. Some 60 workers spent a week scraping asbestos waste from machinery and depositing it in a nearby dump. Then another crew took over. Ceilings and walls were steam cleaned. Every piece of equipment in sight was scrubbed down; some machinery was disassembled and shipped to P.C.C.'s home office in Pittsburgh. What was left was cut up and buried. When the crew finished, all that remained of the plant were two dilapidated wooden buildings that had once seen service as Army bar racks during World War II.

P.C.C.'s scorched-earth policy has left few visible reminders of the facto ry's 17 years in Tyler. But the scars from the plant's presence will not soon dis appear. While producing insulation for the boilers and pipes of naval ships, workers in the plant were exposed to enormous quantities of asbestos dust, which, once inhaled, never leaves the lungs. Now, based on previous experience with asbestos-caused diseases, medical experts estimate that as many as 300 of the 869 employed at the plant since 1954 will die of asbestosis (a permanent and often progressive scarring of lung tissue from inhaled asbestos fibers), lung cancer or cancers of the co lon, rectum or stomach.

Their deaths should come as no sur prise to either company or Government officials. Doctors have long suspected that asbestos dust is hazardous; there has been ample documentation of increased incidence of lung disease and cancers among people exposed to the mineral. As early as 1961, Dr. Irving Selikoff, 59, of New York's Mount Sinai Hospital, and Dr. E. Cuyler Hammond, 61, of the American Cancer Society, confirmed the deadly relationship in studies of workers at a Paterson, N.J., asbestos plant. They documented their work in scientific papers and meetings. They also showed that even small quantities of asbestos fiber could be lethal. Selikoff studied a woman who died of mesothelioma, a cancer of the membrane that covers the lungs and lines the chest and abdomen. The woman's only contact with asbestos came when she washed the clothing of her husband, who worked in an asbestos plant.

After the work by Selikoff and others, P.C.C. officials ordered a study of the asbestos-dust hazard at Tyler in 1963. The report seriously underestimated the hazard. A 1966 dust survey found asbestos levels above recommended thresholds in many areas of the plant, and a 1967 survey by the U.S. Public Health Service's Division of Occupational Health confirmed that the levels were high, but did not warn of the health hazard. After a Labor Department study two years later reported the same conditions, respirators were issued to workers in the plant's dustiest areas. But, according to workers, at no time did P.C.C. officials tell them that they were exposed to a health hazard. "I even had one tell me that stuff, asbestos, is good for you," says J.C. Yandle, 48, a former employee. "He said you could eat it."