major source pollution

plastic poly thin,carbon dioxides, carbon monoxide,fertilizer, etc are  basically  produce pollution that mean this are sour of pollution. 

some source pollution are 
1 plastic poly thin are use
2 inc rise vehicles  that are release carbon dioxide, carbon monoxide, etc.
3 inc rise people that is the reason of all type pollution.
any thing is that major source of any other topic
this is major source of pollution.