Word: filtering
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Dates: during 1970-1979
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...process by which airborne fiber levels are measured is, unfortunately, enormously time-consuming. It requires the use of a complex air pumping device which, attached to a worker's belt, draws air through a hose connected to a filter pinned to his lapel. But even if measurement is taken over a two or three-hour period, it may not reflect the full extent of contamination, since the most dense exposure may occur only once a day or less when the substance is poured from shipping sacks into mixing bins, for example, generating huge plumes of dust...
...passive inhalation") suffer the same adverse consequences as smokers. Seconds after breathing cigarette smoke, the non-smoker's heart beats faster, his blood pressure rises, and the carbon monoxide in his blood increases. The non-smoker might even face a greater danger from cigarettes than the smoker. The cigarette filter often protects the smoker; the non-smoker has no such protection and must breathe the smoke that wafts his way from the cigarette's end. That unfiltered smoke contains more cadmium than is contained in filtered smoke. (Cadmium, in large doses, is connected with emphysema, chronic bronchitis, and hypertension). Unfiltered...
...companies have combined with electric utilities and other industries to find ways to take the sulfur out of coal. Usually, this is done by sending coal gases through "scrubbers" at the bottom of tall smokestacks that contain a chemical solution to filter emissions...
...they were asked to smoke so that Levine could measure any changes. The physician found no significant change in platelet activity after the volunteers smoked cigarettes made of lettuce leaves, which contain no nicotine, or when they dragged on unlit cigarettes. But only five minutes after smoking a standard filter cigarette, all showed an increased tendency to form clots...
...military government in Brazil enforces its authoritarian power with clear-cut repression. In 1968, the military established rule by decree, shutting down Congress, abolishing political rights including habeas corpus for political prisoners, and bypassing the courts. Reports of the torture of prisoners continue to filter...