Links

Here are links to some useful resourses on the web:

• Air Pollutants
  http://www.epa.gov/air/urbanair/
   
• Water Pollutants
  http://www.excelwater.com/can/b2c/about_3.php
   
• Soil Pollutants
  http://greenpack.rec.org/soil/problems_and_threats_to_the_soil/03-03-03.shtml
   
• Pollution standards
  http://cpcb.nic.in/oldwebsite/standard64.htm