HSCi 204 Midterm with correct answers 100% 2026

HSCi 204 Midterm with correct answers 100% 2026 Definition of Environmental Health - Correct Answer 1. Broad view of the environment: ex. physical, social, etc 2. Goal is to minimize adverse health effects caused by environmental hazrads Why is environmental health important? - Correct Answer 1. There are enormous impacts at teh population level 2. everyone is affected (widespread) 3. Inherently interdiscplinary 4. Overlaps with many fields 5. Small effects at the individual level -- which makes it difficult Historically, info about enviromental health came from 2 sources. - Correct Answer 1. Anecdotal occupational observations; workers would experience a rare disease with unexpected frequency ex. Chimney workers would have hella lung cancer 2. Disasters/sudden unexpected events that would lead to a negative health impacts ex. the Mimata disaster; mercury got thrown in the ocean and fish ate it- biomagnification, then humans ate it and got mercury poisoning Change in perception of environmental health - Correct Answer in the 1970s: Due to: - Publication of Silent spring in 1962: Rachel Carson was a big environemntal health advocate and wrote about how we need to be more cautious with using pesticides and this led to a global impact of widespread recognition and concern - Events at Love Canal: Love Canal was used as dumpster site and as trash accumulated there, toxic chemicals also started to appear and with homes so close by, many ppl were affected and many had to be evacuated- events were widely reported Major Public Health Achievements - Correct Answer 1. Mortality dropped due to better/cleaner drinking water 2. Decrease in lead in our air Environnmental risk transition - Correct Answer As countries get more developed (wealth increase), Household risks will fall (sanitation), community risks with rise then fall (urban pollution) and global risks will rise (global warming) Where should we intervene? The pyramid - Correct Answer 1. Elimination: Physically remove hazard 2. Sublimation: Replace hazard 3. Engineering control: Make physical modifications to control hazard 4. Administrative control: Change the way ppl work 5. PPE: Personal Protective Gear (least effective) Where should we intervene? 3 ways- ex air pollution - Correct Answer 1. At the source: Reduce emissions (less vehicle mileage) 2. Along the pathway: Move houses farther from roads 3. At the household level: Make ppl wear masks, keep windows closed Environmental hazards are - Correct Answer upstream forces ex. transportation- co2 emissions - pollution