Environmental pollution and the global burden of disease

Environmental pollution can be simply, if somewhat generally, defined as the presence in the environment of an agent which is potentially damaging to either the environment or human health. As such, pollutants take many forms. 

They include not only chemicals, but also organisms and biological materials, as well as energy in its various forms (e.g. noise, radiation, heat). The number of potential pollutants is therefore essentially countless. There are, for example, some 30,000 chemicals in common use today, any one of which may be released into the environment during processing or use. 


reflection :

Save the forms and plastic bags. 
Save the earth. 

http://bmb.oxfordjournals.org/content/68/1/1.full