Word: carcinogenic
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Dates: during 1990-1999
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...students say that paint is not the only offensive material being sprayed. Fumes persist from students spraying acetone, a carcinogen used in Xerox transfer of prints...
...Many blacks lack an enzyme that breaks down a key carcinogen in tobacco smoke, which may help explain why black men who smoke are 48% more likely to develop lung cancer than white men who smoke...
Cancer-causing mutations can occur quite by accident. But chronic exposure to carcinogens -- chemicals whose by-products bind to DNA and damage it -- greatly accelerate the rate at which dividing cells make errors. Proven carcinogens include asbestos, benzene and some ingredients of cigarette smoke. Many carcinogens, it turns out, are not blunderbusses but leave highly individualized fingerprints in the DNA they touch. At the National Cancer Institute, Dr. Curtis Harris, a molecular epidemiologist, has been examining cells from liver- and lung-cancer patients, searching for mutations in a tumor-suppressor gene known as p53 (p stands for the protein...
Tobacco companies have heavier artillery when it comes to challenging the EPA's 1993 report that labeled environmental tobacco smoke, or ETS, a carcinogen. They charge that the report -- a review of 30 epidemiological, animal and laboratory studies conducted during the past two decades -- is fundamentally flawed. The Congressional Research Service and some independent scientists have also criticized the report...
...nothing has galvanized today's antismoking activists as much as the / Environmental Protection Agency report released a year ago that classified environmental tobacco smoke as a class-A carcinogen and estimated that 3,000 nonsmokers die each year from lung cancer as a result of other people's smoke. The tobacco industry is currently challenging the findings in court, but the report dealt a serious blow to so-called smokers' rights that's still being felt...