POPs is pertinent organic chemicals, mean many chemicals include on this cathegory. General people will don't know this chemical because this kind of chemical is not include in the study, I mean cathegorized chemical in such kind like that. In lecture usually only familiar with kind of chemical like organic or unorganic chemicals, or include on metal or non metal this cathegorized is just for differentiate when study about metal characteristic. So POPs will be a new knowledge for general student if they never read this knowledge, they will don't understand this. POPs chemical is forbiden include on other chemical or use in industry to help the process, because this pollutant will retain in the human body if can enter the body through many kind of ways. This pertinent chemicals pollutant then can make disseases of disturbance body organ work like kidney, lung, hearth, brain, pancreas and many others body organ. Stockholm convension about POPs have been perform three tim...