||Interaction of complex pollutant mixtures and particulates in causation of pulmonary disease /
||IIT Research Inst., Chicago, IL.;Health Effects Research Lab., Research Triangle Park, NC.
|| U.S. Environmental Protection Agency, Health Effects Research Laboratory,
Air--Pollution--Physiological effect--United States ;
Air--Pollution--United States--Physiological effect
Respiratory diseases ;
Cadmium sulfate ;
Cadmium nitrate ;
Magnesium sulfate ;
Air pollution effects(Humans) ;
||Some EPA libraries have a fiche copy filed under the call number shown.
||50 pages ; 28 cm
||Studies were conducted to determine the effects of inhalation exposure to particulate and gaseous air pollutants on the resistance to experimental bacterial pneumonia. Changes in resistance to this respiratory infection, expressed as changes in mortality rates and survival time, served as the most sensitive and consistent indicators of damage produced by the exposure. Using these parameters it was possible to rank the effects of single 3-hr inhalation exposure to the particulate pollutants. Among the particulate pollutants included in these studies cadmium sulfate and cadmium nitrate were most toxic followed in decreasing order of toxicity by copper, aluminum and magnesium sulfate or nitrate aerosols. The metallic cation appeared to be most important in altering the resistance to infection. Multiple 3-hr exposures to zinc or cupric sulfate similarily reduced the resistance at significantly lower concentrations of the pollutants.
||Caption title. "January 1984." "EPA-600/1-84-002." Microfiche.
||Research Triangle Park, NC :
|Corporate Au Added Ent
||Health Effects Research Laboratory (Research Triangle Park, N.C.)
|PUB Date Free Form
||PC A03/MF A01
|OCLC Time Stamp
|OCLC Rec Leader
||01104nam 2200277Ka 45020