Unit 2 PBH Exam: Module 7
Exposure Pathway - ✅✅ -Contaminate source, release mechanism, impacted
media, transportation, exposed media, route of exposure, receptor population
Dose Response - ✅✅
-Linear: a little exposure is a little harm, more exposure is
more harm
Threshold: exposed with no harm then after harm there's a threshold
Saturation curve: harm occurs but then at a point no more harm
Bioaccumulation - ✅✅
-taking in more faster than you're getting rid of it
worst case scenario: CHRONIC HIGH DOSE EXPOSURE CHEMICAL W/LONG
HALF-LIFE
Biomagnification - ✅✅ -- the food chain
ex. the seal at the top of the food chain is eating more fish containing mercury, since
the animals below have already consumed it
Carcinogen - ✅✅-cancer causing
Toxin - ✅✅-harmful to the brain and body
What was the source of the crisis in Flint, Mi? - ✅✅-Building Industry
Air Quality Index -✅✅-index reporting the amount of ozone and particle pollution
Pollutants monitored by the US - ✅✅-Ozone and particulate matter
Primary Pollutant - ✅✅-air pollutant emitted directly from a source (particulate
matter)
Secondary Pollutant - ✅✅ -an air pollutant not directly emitted bht forms when other
pollutants react in the atmosphere (ozone pollution)
Contamination Source - ✅✅--industry
-agriculture
-consumer practices
-vehicle emissions
-natural sources
-waste management
Release Mechanism - ✅✅--spill
-leak
-leeching
Exposure Pathway - ✅✅ -Contaminate source, release mechanism, impacted
media, transportation, exposed media, route of exposure, receptor population
Dose Response - ✅✅
-Linear: a little exposure is a little harm, more exposure is
more harm
Threshold: exposed with no harm then after harm there's a threshold
Saturation curve: harm occurs but then at a point no more harm
Bioaccumulation - ✅✅
-taking in more faster than you're getting rid of it
worst case scenario: CHRONIC HIGH DOSE EXPOSURE CHEMICAL W/LONG
HALF-LIFE
Biomagnification - ✅✅ -- the food chain
ex. the seal at the top of the food chain is eating more fish containing mercury, since
the animals below have already consumed it
Carcinogen - ✅✅-cancer causing
Toxin - ✅✅-harmful to the brain and body
What was the source of the crisis in Flint, Mi? - ✅✅-Building Industry
Air Quality Index -✅✅-index reporting the amount of ozone and particle pollution
Pollutants monitored by the US - ✅✅-Ozone and particulate matter
Primary Pollutant - ✅✅-air pollutant emitted directly from a source (particulate
matter)
Secondary Pollutant - ✅✅ -an air pollutant not directly emitted bht forms when other
pollutants react in the atmosphere (ozone pollution)
Contamination Source - ✅✅--industry
-agriculture
-consumer practices
-vehicle emissions
-natural sources
-waste management
Release Mechanism - ✅✅--spill
-leak
-leeching
