1 introduction to environmental toxicology

Question 1

what are the environmental monitoring/regulatory agencies?

Answer 1

-health canada and the canadian food inspection agency
-environment and climate change canada
-U.S. environmental protection agency (EPA)
-world health organization

Question 2

what is health canada and the canadian food inspection agency?

Answer 2

has authority on environmental issues based on:
-canadian environmental protection act (CEPA)
-occupational standards, food, drinking water

Question 3

what is environment and climate change canada?

Answer 3

has authority on environmental issues concerning:
-non-human species
-levels of contaminants in the environment (air, water, soil)

Question 4

what is the U.S. environmental protection agency (EPA)?

Answer 4

-protection of people and environment from environmental contaminants
-develops and enforces environmental regulations

Question 5

what is the world health organization?

Answer 5

-human and non-human regulations/standards

Question 6

what is environmental toxicology?

Answer 6

-multidisciplinary study of how chemicals affect organismal/human health and the environment
-helps us understand where chemicals will end up in the environment and in organisms, determine the toxic impact of harmful chemicals, and monitor exposure limits to keep us and our environment healthy

Question 7

what is ecotoxicology?

Answer 7

-the study of the harmful effects of chemicals/pollutants upon ecosystems (populations to biosphere)

Question 8

what are the principles of ecotoxicology?

Answer 8

-first even is the toxic initiation event
-blue is environmental toxicology

Question 9

what is silent spring?

Answer 9

written by Rachel Carson on sept 27th, 1962 (inspired EPA based on book in 1970s)
-“It is ironic to think that man might determine his own future by something so seemingly trivial as the choice of an insect spray”

Question 10

what were the two pollutants that drew attention to the dilution paradigm?

Answer 10