Word: cancerous
(lookup in dictionary)
(lookup stats)
Dates: during 1980-1989
Sort By: most recent first
(reverse)
Hutton's statement said that while preliminary laboratory tests showed the cancer had not spread to the lymph nodes or surrounding tissue, final laboratory analysis would be completed on Sunday...
Such tests on frozen sections of the lymph nodes are crucial, because the lymph nodes act as the body's filters for foreign matter such as cancer cells, and physicians look to them to determine whether the cancer has spread to other parts of the body...
...glittery stuff proved to be cesium-137, a radioactive isotope used in cancer-therapy equipment. The scrap collector found the casing a month ago in a spot where a radiotherapy clinic had once stood. Though months may pass before the final toll is known, the Goiania episode promises to be that rare nightmare, a radiation mishap that kills several people. The worst of these was last year's explosion at the Chernobyl nuclear reactor, which Soviet authorities acknowledge has claimed 31 lives...
Indeed, if the ozone layer diminishes over populated areas -- and there is some evidence that it has begun to do so, although nowhere as dramatically as in the Antarctic -- the consequences could be dire. Ultraviolet radiation, a form of light invisible to the human eye, causes sunburn and skin cancer; in addition, it has been linked to cataracts and weakening of the immune system. Without ozone to screen out the ultraviolet, such ills will certainly increase. The National Academy of Sciences estimates that a 1% drop in ozone levels could cause 10,000 more cases of skin cancer a year...
...good enough. Says Rowland: "The Montreal agreement simply isn't sufficient to protect the ozone. We should have signed a treaty that reduced CFC production by 95% -- not 50%." Nonetheless, the Environmental Protection Agency has calculated that without the accord, a staggering 131 million additional cases of skin cancer would occur among people born before...