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<br />- <br /> <br />... <br /> <br />--- <br /> <br />- <br /> <br />- <br /> <br />- <br /> <br />.j' <br /> <br />Division: Air Pollution Control Division <br />James M. Lents. Director <br /> <br />- <br /> <br />- <br /> <br />- <br /> <br />.' <br /> <br />-'........ <br /> <br />';'.'-"",.'. <br /> <br />SULFATE <br /> <br />ESTIMATED HEALTH EFFECTS LEVELS FOR SULFATE AND NITRATE EXPOSURE <br /> <br />TABLE 11-6 <br /> <br />EFFECTS <br /> <br />Aggravation of respiratory symptoms in elderly and asthmatics. <br /> <br />Decreased lung function in children. increased acute lower <br />respiratory disease. prevalence of chronic bronchitis. <br />and acute respiratory disease. <br /> <br />NITRATE <br /> <br />EFFECTS <br /> <br />Increase in asthma attack rate when temperatures exceeded SO degrees. <br /> <br />EXPOSURE DURATION <br /> <br />8-10 micrograms per cubic meter of air in 24-hours. <br /> <br />11-15 micrograms per cubic meter <br />of air annual average <br /> <br />EXPOSURE DURATION <br /> <br />8 micrograms per cublcmeter of alr~ 24-houro <br /> <br />-27- <br /> <br />lIIIIIIiIiiIio ..... '.loiiiIiiIiii: _ <br />....... ,~~,~?t!IIIlII!I_:.: "- <br />': :~~_.' . ~ ::..::,-'~~~~~:..{,~~_..-.... <br /> <br />S(:2T <br /> <br />."~:-'.; . "'-'^.".~. <br />