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AIR POLLUTION CONTROL L 7

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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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AIR POLLUTION CONTROL L 7

  1. 1. L-7 Effects of air pollution on human health (Part -II) Air pollution and control (Elective –I) Prof S S Jahagirdar,NKOCET 1
  2. 2. Air pollutants 2. Carbon Monoxide (CO) Characteristics - Colourless - Odourless - Toxic gas - Has greater affinity for Hb - Attacks Hb and replaces oxygen • Major sources 1. Incomplete combustion of fuels 2. Automobile exhausts 3. Jet engines emissions 4. Blast furnaces 5. Mines Prof S S Jahagirdar,NKOCET6. Tobacco smoking 2
  3. 3. Typical effects of CO 1. Toxicity 2. Blood poisoning 3. CNS impairment 4. Forms carboxyhemoglobin as it combines with hemoglobin present in the blood. 5.Hb has 200 times more affinity towards CO than O2. 6.Excess amount of CO-Hb leads to death Prof S S Jahagirdar,NKOCET 3
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  7. 7. 3. Sulphur dioxide (SO2) Characteristics - Colourless - Heavy - Water soluble gas - With pungent and irritating odour - Combines with moisture to form H2SO4 Major sources 1. Combustion of coal 2. Combustion of petroleum products 3. Burning of refuse 4. Oil refining 5. Thermal power plants 6. Domestic burning of fuels Prof S S Jahagirdar,NKOCET 7
  8. 8. Typical effects 1. Increased breathing rate and feeling air starvation 2. Suffocation 3. Aggravation of asthma and chronic bronchitis 4. Impairment of pulmonary functions 5. Respiratory irritation 6. Irritation of throat and eyes Prof S S Jahagirdar,NKOCET 8
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  11. 11. 4. Oxides of Nitrogen (NOx) Characteristics Major sources - NO is colourless gas 1. Automobile exhausts and soluble in water 2. Coal fired and gas fired - NO2 is reddish brown, furnaces somewhat water 3. Explosives industries soluble, oxidant and 4. Fertilizer industries forms nitric acid by 5. Nitric acid combining with water manufacturing industries - Takes part in photochemical 6. Combustion of wood and refuse reaction Prof S S Jahagirdar,NKOCET 11
  12. 12. Typical effects 1. Respiratory irritation 2. Headache 3. Bronchitis 4. Pulmonary edema 5. Impairment of lung defenses 6. Loss of appetite 7. Corrosion of teeth Prof S S Jahagirdar,NKOCET 12
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  14. 14. 5. Hydrogen Sulphide (H2S) Major sources 1. Coke ovens 2. Paper mills 3. Petroleum industry 4. Oil refining 5. Viscose rayon manufacturing plants 6. Manufacture of dyes 7. Tanning industry 8. Sewage treatment plants Prof S S Jahagirdar,NKOCET 14
  15. 15. Typical effects 1.Headache 2.Conjunctivitis 3.Sleeplessness 4.Irritation of respiratory tract Prof S S Jahagirdar,NKOCET 15
  16. 16. 6. Hydrocarbons Major sources Characteristics 1. Organic chemical - Very reactive industries, - Some are 2. Petroleum refineries volatile 3. Automobile exhausts - takes part in 4. Rubber manufacture photochemical reactions Prof S S Jahagirdar,NKOCET 16
  17. 17. Typical effects 1.Carcinogenic 2.Lachrymatory effect Prof S S Jahagirdar,NKOCET 17
  18. 18. 7. Oxidants (O3, PAN, PBN ) Major sources 1.Photochemical reactions Typical effects 1.Irritation of eyes and lungs 2.Accumulation of fluids in the lungs 3.Effects on enzymes Prof S S Jahagirdar,NKOCET 18
  19. 19. Objective Questions Q1.Hb has ________ times more affinity towards CO than O2. Q2. CO after entering into body combines with ____________ to form _________________. Q3. ___________________ gas has pungent and irritating odour. Q4. __________________are very reactive in nature. Q5. ________,___________and ________ causes effects on enzymes. Prof S S Jahagirdar,NKOCET 19
  20. 20. Theory Questions Q1. Give characteristics, major sources and typical effects of following pollutants on human health 1. SO2 2. NO2 3. CO 4. O3 Q2. Write in detail effects of following pollutants on human health (Tabular format expected) 1. SO2 2. NO2 3. CO Prof S S Jahagirdar,NKOCET 20
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