What do the colors of the four trash cans represent?

In China, from June 5, 2003 to 10, the state promulgated the rules and regulations on domestic waste. According to the unified symbol formulated by the state, domestic waste is divided into five categories, namely:

1, red: represents harmful substances, 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, which can be used as fertilizer for plant nutrients, and can be decomposed and absorbed by natural microorganisms and plants after burial, thus playing a role in recycling waste.

3. Blue: It means recyclable garbage, including valuable materials such as plastic, paper and metal, which 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 are generally burned and buried.

5. Yellow: It represents a special garbage bin for medical waste, which is generally only used in hospitals, health stations and other medical places.

Extended data:

Sorting trash can

(1) Recyclable materials refer to wastes suitable for recycling and resource utilization.

Mainly includes:

1. paper: writing paper, wrapping paper and other paper products that are not seriously polluted. Such as newspapers, all kinds of wrapping paper, office paper, advertising paper, old magazines, etc.

2. Plastics: plastic products, such as waste container plastics and packaging plastics. Such as plastic bags, plastic bottles, foamed plastics, disposable plastic lunch boxes and tableware, hard plastics, etc.

3. Metals: all kinds of scrap metal products. Such as cans, tin cans, lead toothpaste skin, etc.

4. Glass: colored and colorless waste glass products.

5. Fabric: old textile clothing and textile products.

(2) Non-recyclable materials refer to garbage other than recyclable garbage. Common garbage is easy to decompose under natural conditions, such as skins, vegetable leaves, leftovers, flowers, branches, leaves, used tea leaves, etc.

(three) toxic substances, such as waste batteries, waste fluorescent tubes, mercury thermometers, waste paint, boxes, cans and expired drugs and cosmetics.

References:

National Domestic Waste Classification Mark-Shouxian People's Government