Garbage is divided into four categories: Garbag that can not be recoveredand used. Kitchen husk，leaves，leftovers，etc. collected with green plasticcontainers.Waste that can be recovered and used. Paper，plastic，glass，fabric andmetal，etc.，are collected in blue plastic containers.
Toxic and hazardous waste.Scrap batteries，expired medicines，paint buckets，mercury thermometers，fluorescenttubes and household chemicals，etc.are collected in red plastic containers.Otherrubbish，collected in gray or yellow plastic containers.
