Chp 9 Environmental Health

1. the degree to which a substance is harmful to an organism
6. the effect on an organism of exposure to a pollutant or other hazardous substance
7. a chemical that can damage the nervous system
8. something that threatens or is harmful to human health
11. the probability that a hazard will cause a harmful response
13. a colorless, highly toxic radioactive gas
15. a disease that is appearing in the human population for the first time or that has existed for a while, but is spreading rapidly
16. a disease-causing organism
17. the buildup of large concentrations of poisons in the body
18. the study of how environmental factors affect human health and quality of life
20. the study of disease in human populations

2. a disease caused by a pathogen
3. a mineral that forms long, thin, microscopic fibers; used as an insulator against heat and sound
4. matter or energy that is harmful to the environment
5. a substance or disease that prevents a fetus or embryo from developing normally
9. the process of measuring risk
10. a chemical that causes cancer
12. the increased concentration of pollutants at each step up a food chain
14. the level of exposure to a pollutant or other hazardous substance
19. the study of how poisons affect an organism's health