Given the national ambient air quality standard (NAAQS) for ozone (O3) is 0.08 ppm or parts per million on a volume basis. Using the Ideal Gas Law (PV = nRT, with R = 0.082 L-atm/mol-K):

(a) Express that standard in ug/m3 at 1 atm pressure and 25°C temperature.

(b) At the elevation of Denver, the pressure is about 0.85 atm and temperature is 12°C. Express the ozone standard in ug/m3 at that pressure and temperature.