hazardous waste

what is hazardous waste

Hazardous waste is any waste material that is dangerous to human health or that degrades the environment. Haz- ardous waste includes substances that are: 1. 2. 3. 4. Toxic: causes serious harm or death, or is poisonous. Chemically active: causes dangerous or unwanted chemical reactions, such as explosions. Corrosive: destroys other things by chemical reactions. Flammable: easily catches fire and may send dangerous smoke into the air. All sorts of materials are hazardous wastes and there are many sources. Many people have substances that could become hazardous wastes in their homes. Several cleaning and gardening chemicals are hazardous if not used properly. These include chemicals like drain cleaners and pesticides that are toxic to humans and many other creatures. While these chemicals are fine if they are stored and used properly, if they are used or disposed of improperly, they may become hazardous wastes. Others sources of hazardous waste are shown in Table 1.1. Type of Hazardous Waste Chemicals from the automobile in- dustry Example Gasoline, used motor oil, battery acid, brake fluid Batteries Car batteries, household batteries Medical wastes Dry cleaning chemicals Surgical gloves, wastes contami- nated with body fluids such as blood, x-ray equipment Paints, paint thinners, paint strip- pers, wood stains Many various chemicals Agricultural chemicals Pesticides, herbicides, fertilizers Paints Why it is Hazardous Toxic to humans and other organ- isms; often chemically active; often flammable. Contain toxic chemicals; are often corrosive. Toxic to humans and other organ- isms; may be chemically active. Toxic; flammable. Toxic; many cause cancer in hu- mans. Toxic to humans; can harm other organism; pollute soils and water. Click image to the left or use the URL below. URL:

instructional diagrams

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questions

which of these substances are considered hazardous waste?

a) chemically active materials

b) flammable material

c) corrosive materials

-->  d) all of the above

gasoline, used motor oil, battery acid and brake fluid are toxic chemicals from

a) medical facilities.

b) dry cleaners.

-->  c) the automotive industry.

d) paints manufacturers.

paints are hazardous because they are

a) toxic

b) flammable

c) corrosive

-->  d) a & b

dry cleaning chemicals are hazardous because they ____.

a) are flammable.

-->  b) may cause cancer in humans

c) are corrosive.

d) a & b

human blood is

-->  a) a medical waste.

b) messy but not a hazard.

c) flammable

d) corrosive.

what does corrosive mean?

a) it can cause explosions

-->  b) it destroys by chemical reactions

c) it can catch on fire

d) it is poisonous

toxic chemicals are all right if they are stored and used properly.

-->  a) true

b) false

if you are going to use pesticides or herbicides the more you use the more pests you kill and the better it is.

c) true

d) false

which of these is corrosive?

a) surgical gloves

-->  b) batteries

c) paint

d) dry cleaning chemicals

how can you can get rid of hazardous waste safely?

a) pour toxic liquids down the drain.

b) throw medical wastes in the trash.

-->  c) follow the rules for each toxic material.

d) all of these.

diagram questions

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