Environmental Health Ecotoxicology

Question 1

toxicology

Answer 1

study of poisons/toxins and their effects on organisms.

can be either synthetic or natural

Question 2

environmental (eco)toxicology

Answer 2

includes toxicology as well as the additional investigation of the environmental factors influencing exposure dynamics

Question 3

acute exposure

Answer 3

symptoms develop rapidly following exposure and absorption

usually exposed to large amounts of a chemical

Question 4

chronic exposure

Answer 4

takes place over a long period of time. followed by prolonged exposure to low levels of pollutants

Question 5

antagonistic effect

Answer 5

chemicals that interact to cancel out or lessen the toxicity effect

Question 6

synergistic effect

Answer 6

combining these toxins results in a pronounced effect and much greater response than would be expected

Question 7

4 step process of risk assessment

Answer 7

1. hazard identification
2. dose-response assessment
3. exposure assessment
4. risk characterization