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Smokers arsenic

Tobacco smoke contains a variety of air pollutants. In a survey of 80 homes ia an area where the outdoor TSP varied between 10—30 lg/m, the iadoor TSP was the same, or less, ia homes having ao smokers. la homes having oae smoker, the TSP levels were betweea 30—60 lg/m, while ia homes having two or more smokers, the levels were betweea 60—120 lg/m (64). la other studies, iadoor TSP levels exceeding 1000 lg/m have beea fouad ia homes with aumerous smokers. la additioa to TSP, burning tobacco emits CO, NO formaldehyde [50-00-0] bea2opyreaes, nicotine [54-11-5] pheaols, and some metals such as cadmium [7440-43-9] and arsenic [7440-38-2] (65). [Pg.381]

Figure 13 Schematic representation of an MOR hydrothermal system and its effects on the overlying water column. Circulation of seawater occurs within the oceanic crust, and so far three types of fluids have been identified and are illustrated here high-temperature vent fluids that have likely reacted at >400 °C high-temperature fluids that have then mixed with seawater close to the seafloor fluids that have reacted at intermediate temperatures, perhaps 150 °C. When the fluids exit the seafloor, either as diffuse flow (where animal communities may live) or as black smokers, the water they emit rises and the hydrothermal plume then spreads out at its appropriate density level. Within the plume, sorption of aqueous oxyanions may occur onto the vent-derived particles (e.g., phosphate, vanadium, arsenic) making the plumes a sink for these elements biogeochemical transformations also occur. These particles eventually rain-out, forming metalliferous sediments on the seafloor. While hydrothermal circulation is known to occur far out onto the flanks of the ridges, little is known about the depth to which it extends or its overall chemical composition because few sites of active ridge-flank venting have yet been identified and sampled (Von Damm, unpublished). Figure 13 Schematic representation of an MOR hydrothermal system and its effects on the overlying water column. Circulation of seawater occurs within the oceanic crust, and so far three types of fluids have been identified and are illustrated here high-temperature vent fluids that have likely reacted at >400 °C high-temperature fluids that have then mixed with seawater close to the seafloor fluids that have reacted at intermediate temperatures, perhaps 150 °C. When the fluids exit the seafloor, either as diffuse flow (where animal communities may live) or as black smokers, the water they emit rises and the hydrothermal plume then spreads out at its appropriate density level. Within the plume, sorption of aqueous oxyanions may occur onto the vent-derived particles (e.g., phosphate, vanadium, arsenic) making the plumes a sink for these elements biogeochemical transformations also occur. These particles eventually rain-out, forming metalliferous sediments on the seafloor. While hydrothermal circulation is known to occur far out onto the flanks of the ridges, little is known about the depth to which it extends or its overall chemical composition because few sites of active ridge-flank venting have yet been identified and sampled (Von Damm, unpublished).
In a study of 228 Swedish copper smelter workers, it was found that the age standardized rate ratio for lung cancer death was 3.0 for arsenic-exposed nonsmokers, 4.9 for smokers not occupationally exposed to arsenic, and 14.6 for arsenic-exposed smokers, demonstrating a multiplicative effect of the combined exposure. I122l... [Pg.543]

Among heavy smokers in certain industries involving asbestos, chromate, nickel compoimds, coke ovens, chloromethyl ether, uranium, arsenic trioxide etc. [Pg.477]

A 35-year-old man with acute promyelocytic leukemia in relapse achieved a second remission with oral arsenic trioxide 10 mg/day for 30 days, followed by idarubicin 9 mg/day for 5 days. He was a chronic smoker (3 packs/... [Pg.448]


See other pages where Smokers arsenic is mentioned: [Pg.74]    [Pg.115]    [Pg.73]    [Pg.43]    [Pg.185]    [Pg.58]    [Pg.2065]    [Pg.76]    [Pg.259]    [Pg.1333]    [Pg.813]    [Pg.2300]    [Pg.352]   
See also in sourсe #XX -- [ Pg.240 , Pg.243 ]




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