Environmental tobacco smoke : measuring exposures and - download pdf or read online

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By National Research Council, Division on Earth and Life Studies, Commission on Life Sciences, Committee on Passive Smoking

Examines the features and composition of alternative sorts of environmental tobacco smoke (ETS) and discusses attainable healthiness results of ETS. This booklet provides an summary of tools used to figure out exposures to environmental smoke and stories either persistent and acute health and wellbeing results. It contains concepts for components of additional study.

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Table 2–6 shows concentrations of nitric oxide and nitrogen dioxide in smoke-polluted environments and indicates means ranging from 9 to 195 ppb for nitric oxide and 21 to 76 ppb for nitrogen dioxide. Generally, the nitrogen oxide values reported in Table 2–6 are significantly in excess of those observed for outdoor atmospheres. However, some severe air pollution episodes in industrial areas have reportedly caused levels of 100 ppb, which persisted over several hours or even for several days (Goldsmith and Friberg, 1977).

Finally, chemical and physicochemical characteristics based on analysis of smoke generated by machine smoking are not fully comparable with those of compounds generated when a smoker inhales cigarette smoke. , 1981). * The physical and chemical changes that occur in reactive smoke constituents during aging of the compounds after their emission into the environment must also be considered. For example, nitric oxide is generated in a cigarette during smoking and is chemically * The computations for exposures to nonsmokers for 1 hour in Table 2–10 are made using the equation: assuming an average respiratory rate of 10 L/minute.

Tables 2–7 and 2–8 show concentrations of acrolein and acetone in ETS. These volatile carbonyl compounds are known to affect mucociliary function and thus inhibit the clearance of smoke particles from the lung (Wynder and Hoffmann, 1967). Table 2–9 shows concentrations of some additional toxic agents in ETS. , 1985). RADIOACTIVITY OF ENVIRONMENTAL TOBACCO SMOKE The radioactive isotopes of lead (Pb-210), bismuth (Bi-210), and polonium (Po-210), known as long-lived radon daughters in the decay chain of uranium via radium and radon (Radford and About this PDF file: This new digital representation of the original work has been recomposed from XML files created from the original paper book, not from the original typesetting files.

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