EFFECTS OF AIR POLLUTION ON HUMAN



  • around 30-40% of cases of asthma and 20-30% of all respiratory disease. 
  • effect our health in many ways with both short term and long term effect.


EFFECTS OF AIR POLLUTION ON HUMAN



  • Short term effect are: irritation to nose, eye, throat, bronchitis, headache etc.
  •  Long term affect are: lung disease, chronic respiratory problem, damage to heart, brain, eyes etc. 
  • Eye irritation due to NOx, O3 , PAN, particulates.
  • Nose and throat due to SO2 , NOx etc.
  • Gaseous pollutants like H2S, SO2 , NO2 and hydrocarbons cause odor nuisance.
  • Irritation of respiration tract caused by SOx, NOx, CO, O3 .
  • Increase in mortality.
  • High conc. of SO2 , NO2 and SPM causes bronchitis and asthma.
  •  CO and NO react with haemoglobin and reduce O2 carrying capacity of blood.
  • Heavy metals like lead can cause poisoning. High conc. cause damage to liver and kidney.


What are the effects of air pollution on human health?


  • Nature of the pollutants 
  • Concentration of the pollutants 
  • Duration of exposure 
  • State of health of receptor 
  • Age group of the receptor

 What are the effects of air pollution on plants?


  • Decrease yield in agriculture. 
  • Suppressed growth of vegetables. 
  • Leaf injury and damage to young plants. 
  • Decreased growth rate and increased death rate.



  What are the effects of air pollution on MATERIALS?


  • Corrosion of metals due to SO2 in presence of oxygen and moisture is converted into H2SO4 acid.
  • H2SO4 acid react with limestone, marble and other building materials to cause deterioration.
  • Soiling and eroding of building materials.
  • SO2 , O3, H2S and aerosols damage protective coating and paints of the surface.
  • O3 and PAN causes cracking of rubber and various electrical insulations.
  • Deterioration of art work due to SPM.