Midterm Flashcards
What is the definition of risk?
The severity of the event multiplied by the probability of the event
How is the severity of an event measured?
Scale of low, medium, high
What impacts your perception of risk?
- A persons familiarity with risk
- The certainty of the nature of the risk
- Who is communicating about the risk
Can a health risk be positive?
no
What is the hazard in riding a mechanical bull?
The bull
How likely is a 100 year flood?
There is a 1% probablility of it occuring in any given year
What does a risk assessment describe?
The type and magnitude of an adverse affect
The degradation of chlorine in the environment is an example of which of the pbt criteria?
Persistence
What is a threshold dose?
the dose before health effects are observed
Are people all impacted similarly by carcinigens?
No
Are public health mandated to oversee brownfield development by the OPHS
no
What is the best source of evidence for risk assessment?
Toxilogical Reports
In risk management, what does “blocking exposure pathways” mean?
Using a hard cap of soil to contain the contaminent
What does the “weight of evidence” refer to?
How much evidence supports your hypothesis
Provincial standards, such as regulations are the best information to use in a risk assessment
No, toxilogical reports
What is the pbt criteria used for>
Assessing the severity of effects
What is the benifit of the Health Impact assessment?
It uses a preventative approach to managing the issue
Can the precautionary principle be used for any health risk?
no
What is a limitation Environmental impact assessment?
It is strongly focused on quantitative approach to measur eimpact
According to Tversky and Khaneman we are poor at decision making because…?
We allow emotions to influence our rational decisions
Does the precautionary principle take into consideration peoples perception of risk?
Yes
Does a vulnerability assessment predict health climate change impacts for a specific region?
Yes
Why is risk perception important>
It determines which hazards people care about and how they deal with them
What does a climate risk assessment framework look at?
The economic impacts of climate change, the health impacts of climate change, and the environmental impacts of climate change
Does the perception of risk vary across individuals?
Yes
What is bioaccumulation?
The build up of toxins in an organism
What is toxicity?
The degree to which a substance is harmful to an organism
What are brownfields?
former industrial lands
What is the primary concern with brownfields?
They may be contaminated
What are benefits of rehabilitating brownfields?
Economic Stability, increas property values, and revitalize urban settibgs
What is phytoremediation?
The use of plants and trees to remediate areas
What is a disadvantage of remeditation>
it is expensive, will not get rid of all pollution/ not completely effective
What are the main points for the precautionary principle?
If it is potentially harmful, do not do it, shifts blame to the producer of harm
