Class Notes (1,100,000)
CA (620,000)
UTM (20,000)
Environment (1,000)
ENV100Y5 (900)
Lecture 59

ENV100Y5 Lecture Notes - Lecture 59: Radiography, Bioaccumulation, Broccoli


Department
Environment
Course Code
ENV100Y5
Professor
Monika Havelka
Lecture
59

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Environmental Health and Pollution
-GMOs paradoxically lead to an increase in the use of pesticides
-Round Up is a glyphosate (herbicide) created by Monsanto
-Glyphosate use has increased drastically over the last 10 years, but it’s been proven to be a
carcinogen
-On average, there should be 0 cases in such a small community of First Nations for this rare
cancer, but we’re still talking about a few individuals
-You can imagine that people were pretty upset in their community, because they felt like that
there was no response to the study
-The Flint Water Crisis has come up in the US Presidential Campaign — in Michigan, Flint was
the location of the GM plants, but it was closed and became an economically depressed area
-They decided to get their water from the river instead of the lake, but this caused lead from
pipes to leak into the water supply; and since water from rivers are more acidic than the ones
from lakes, then that leads to contamination of the water
-The water from rivers also carries damaging contaminants, can lead to death and other diseases
-Environmental hazards can be classified into different broad categories; physical (sun burn),
chemical (develop lots of chemical and it gets into the air and water supply), biological (we
create situations where biological risks energy; climate change, malaria, West Nile disease, etc)
and cultural hazards (smoking, etc)
-Physical hazards just happen, and you can shield yourself from these hazards, because human
activity increase the risk of those things happening
-Chemical hazards may include plants that are deadly, as they produce chemicals that are bad
-The Castorbean/ricinus communis is a chemical hazard (as found in Breaking Bad)
-The plasmodium is a parasite that is transferred by mosquitoes that feed on somebody with and
without malaria and there’s a backwash that occurs; so this gets into the person without malaria
and this affects their red blood cells
-When we use the term risk, we should realize that it should be something that we can define; it’s
the probability of something hurting us over a period of time and that we should be able to figure
out
-We developed vaccines and the death rates dropped drastically
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