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# AIR POLLUTION CONTROL Unit ii problem set

AIR POLLUTION CONTROL course material by Prof S S JAHAGIRDAR,NKOCET,SOLAPUR for BE (CIVIL ) students of Solapur university. Content will be also useful for SHIVAJI and PUNE university students

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### AIR POLLUTION CONTROL Unit ii problem set

1. 1. AIR POLLUTION (Elective-I) Numerical on units of measurement and conversion 1) If SO2, CO and NO2 are found out to be 1000 ppm, 600 ppm and 200 ppm respectively in a air quality survey. What are concentrations in µg/m3? 2) If concentrations of SO2, CO and NO2 are given as 1200 ppm, 4000 ppm and 500 ppm respectively. What are their concentrations in µg/m3? 3) The concentration of CO reaches in room to a level of 400 ppm. Express this value in µg/m3. 4) The average daily concentration off SO2 is observed to be 415 µg/m3 at 250 C and 1 atmospheric pressure. Find out concentration of SO2 in ppm. 5) The ozone concentration at 00 C and 1 atmospheric pressure found out to be 118 µg/m3.Find concentration of ozone in ppb. 6) Calculate concentrations of following air pollutants in µg/m3.Assume STP conditions i) ii) CO – 1500 ppm iii) 7) SO2 – 1100 ppm NO2 – 800 ppm The exhaust gas from an automobile contains 1.5% by volume of CO. What is concentration of CO in mg/m3 at 250 C and 1 atmospheric pressure? 8) The exhaust gas from an automobile contains 1.0% by volume of CO. What is concentration of CO in mg/m3 at 250 C and 1 atmospheric pressure? 9) The ozone concentration is observed to be 80 µg/m3 at an urban monitoring station. Does the value exceed the standard clean air? 10) The NO and CO content of sample of air at 220 C and 1 atmospheric pressure is 20 and 100 ppm respectively. Calculate their concentration in µg/m3? 11) Convert the following into ppm at 300 C i) Ozone – 25 µg/m3 ii) H2S – 15 µg/m3 12) Convert ozone concentration of 0.2 ppm to µg/m3if temperature is 300 C. 13) 250 µg/m3 of ozone is present in the atmosphere at 25 0 C. What is the concentration of ozone in ppm and ppb. 14) H2S concentration in the atmosphere is 25 ppm at 25 0 C. What is equivalent concentration in mg/m3? 15) Do as directed i) CO – 100 µg/m3 (convert to ppb) ii) NO – 10 ppm (convert to mg/m3)

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AIR POLLUTION CONTROL course material by Prof S S JAHAGIRDAR,NKOCET,SOLAPUR for BE (CIVIL ) students of Solapur university. Content will be also useful for SHIVAJI and PUNE university students

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