Gray represents garbage except harmful substances and recyclable substances, and yellow represents special garbage bins for medical wastes.
Color classification and marking of trash cans
1, red, represents harmful substances, and is sometimes marked with orange. Harmful substances include waste batteries, fluorescent tubes, paints, expired drugs, cosmetics and other substances that are not recyclable and have certain pollution hazards.
2, green, in the case of a variety of plastic trash cans, green represents kitchen waste, kitchen waste can be used as fertilizer for plant nutrients, and the soil can be decomposed and absorbed by natural microorganisms and plants after being buried, which plays a role in recycling waste.
3, blue, representing recyclable garbage, including plastic, paper, metal and other valuable substances, will be included in the waste recycling system for resource recovery.
4, gray, in addition to harmful substances and recyclable substances, garbage, bricks, ceramics, muck and other wastes that are difficult to recycle, such substances will generally be burned and buried.
5, yellow, representing a special garbage bin for medical waste, generally only used in hospitals, health stations and other medical places.