OCR Text |
Show Table 87. Utah's Compliance to National Ambient Air Quality Standards Pollutant Primary Type of Average Standard level of concentration Secondary Type of Average Standard level of concentration Utah's Compliance CO 8-hourb 9 PPm 1-hour (10 mg/m ) None Non-attainment Pb Max quarterly L5 Ug/m3 average Same as primary Attainment NO2* Annual 0.053 ppm Arithmetic mean {m ug/m3} Same as primary Attainment O3 Max daily 0.12 ppm c 3 1-hour average (235 ug/m ) Same as primary Non-attainment PM-10** Annual 5Q ^3 Arithmetic mean 24-hourd 150 ug/m3 Same as primary Same as primary Non-attainment SO2*** Annual 80 ^3 Anthmentic mean (0.03ppm) 24-hour 365 ug/m (0.14 ppm) 3-hourb 1300 ug/m3 (0.50 ppm) Non-attainment *NC>2 emissions are significant because they convert to nitrates which contribute to PM-10 and ozone formation. **PM-10 attainment relies heavily on the clean up of SO2 and NO2 . ***SCb converts to sulfate which is a PM-2.5. a Parenthetical value is an approximately equivalent concentration b Not to be exceeded more than once per year. c The standard is attained when the expected number of days per calendar year with maximum hourly average concentrations above 0.12 ppm is < 1, as determined according to Appendix H of the Ozone NAAQS. d Paniculate standards use PM-10 (particles less than lOu in diameter) as the indicator pollutant. The annual standard is attained when the expected annual arithmetic mean concentration is less than or equal to 50 ug/nP . The 24-hour standard is attained when the expected number of days per calendar year above 150 ug/m-' is equal to or less than one, as determined according to Appendix K of the PM NAAQS. W £ M. ^ Table 88. Summary of Risks Associated with Ambient Air Pollution in Utah Air Pollutant # of People at Risk Severity5 Health Effects CO 31O.5OO1 31,0502 <1 2 Headaches from short term exposure Aggravated angina Lead -0- 0 NO2 -0- 0 PM-10 989,546* 2563 4 7 Respiratory distress from NAAQS exceedances, increased respiratory infections, aggravation of asthma, bronchitis Mortality SO2 944 2 Aggravation of asthma O3 913,8971 131,5402 4 5 Irritation to eyes, nose, throat and lungs. Fatigue and headache. Patchy damage to ciliated cells of the upper respiratory airways. Increased respiratory infections, aggravation of asthma, bronchitis 1 Population in non-attainment areas for specified pollutant. 2 Number of people with chronic respiratory conditions within non-attainment areas for specific pollutant 3 Estimate 4 Number of people with chronic respiratory conditions within 10-mile radius of Kennecott Smelter Based on a scale of 1 to 7 developed for Unfinished Business (EPA) by the non-cancer workgroup, and adjusted with consideration to the number of people exposed, the ambient concentrations recorded in Utah, and the severity and nature of the symptoms and effects. Utah's Health: An Annual Review 1996 89 |