Lab Review

1. – The likelihood of harm or injury occurring from exposure to a hazard.
2. – Municipal Solid Waste; trash generated by homes, businesses, hospitals, and schools.
6. – Volatile Organic Compounds; chemicals that easily evaporate and contribute to air pollution and smog formation.
7. – The dose of a chemical that kills 50% of a test population; a standard measure of toxicity.
9. – Related to images or observations taken from the air, such as aerial photographs used to study land features.
10. – A molecule of three oxygen atoms; “good ozone” in the stratosphere filters UV radiation, while “bad ozone” in the troposphere contributes to smog.
11. – Microorganisms, some of which are used in wastewater treatment to break down organic matter.

1. – The process of converting waste materials into new products to reduce resource use and pollution.
3. – The steepness of a surface; calculated as rise divided by run (vertical change ÷ horizontal distance).
4. – Process of killing or removing harmful microorganisms from water, surfaces, or wastewater.
5. – Foreign substances that the body does not recognize; often man-made and persistent (e.g., pollutants, drugs, DDT).
8. – A source of danger that can cause harm to health or the environment.