Word: carbone
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...risk is obvious: smoke-filled air contains visible smoke particles and invisible gases that may irritate the eyes and nasal passages. These same substances may also trigger allergic reactions. The least obvious and most insidious danger is that a colorless gas, carbon monoxide, may get into the nonsmoker's bloodstream in sufficient quantity to damage his heart and lungs or exacerbate heart-lung disease that he already...
...principal villain in tobacco. For two decades, scientists have been concentrating on "tars," a catchall term for the viscous gunk that is left from cigarette smoke after the gases and water vapor have been boiled off. Now, while they do not exonerate these culprits, researchers are studying carbon monoxide, a product of incomplete combustion in cigarettes as in automobile engines...
...Inhaled carbon monoxide, in smokers and nonsmokers alike, enters the bloodstream through the inner surface of the lungs, competing with oxygen in the process. The result is that the hemoglobin of the red blood cells carries less oxygen than normal, plus a load of the poisonous carboxyhemo-globin. Cigar smoke presents a hazard similar to that from cigarettes...
...Carbon monoxide concentrations from smoking, of course, do not reach the fatal levels found in a closed garage where a car engine has been left running. Still, a P.H.S. panel headed by Dr. Daniel Horn reported evidence of surprisingly high monoxide levels in smoke-filled rooms. The acceptable maximum in most industrial situations is 50 parts of carbon monoxide to 1,000,000 parts of air. A roomful of cigarette smokers, investigators found, raise the carbon monoxide content to between 20 and 80 p.p.m...
...planet is one, the second planet two, and so on, scientists can spot the alien binary code. Giving their imaginations free rein, they can also recognize that the three groups of dots to the right of the star represent atomic diagrams: hydrogen (with one electron circling a central nucleus), carbon (six electrons and a nucleus) and oxygen (eight electrons and a nucleus). The atoms chosen suggest that life on the distant planet is based on a carbohydrate chemistry...