MIEH 300 MIDTERM EXAM QUESTIONS
AND VERIFIED ANSWERS
\.What is environmental health? - ANSWERS✔-- Aspects of human health,
including quality of life, and related behaviors that are determined by physical,
chemical, biological, and social/cultural factors in the environment
- Theory and practice of assessing, correcting, controlling and preventing factors in
the environment that can adversely affect the health of present and future
generations
\.Name types of environmental agents (Chemical, Biological, Physical) that
impacts health and give example of each. - ANSWERS✔-Chemical: Air & water
pollutants, Pesticides, consumer products
Physical: Noise, Radiation, heat, dust
Biological: Bacteria, virus, fungi
______________________________________
-Chemical: Pesticides can cause throat irritation, sneezing, and coughing.
-Physical: Radiation can penetrate the skin and damage cells inside
-Biological: Bacteria can cause diseases such as cholera and TB.
\.Name one historically significant environmental health event/catastrophe -
ANSWERS✔-- London smog (1952)
,Air pollution episode.
=A period of cold weather, combined with an anticyclone and windless conditions,
collected airborne pollutants - mostly arising from the use of coal - to form a thick
layer of smog over the city.
Aftermath =Environmental legislation since 1952, such as the City of London
(Various Powers) Act 1954 and the Clean Air Acts of 1956 and 1968, led to a
reduction in air pollution.
\.What is exposure? - ANSWERS✔-The contact between an agent and a receptor.
The contact takes place at an exposure surface over an exposure period
\.Describe exposure pathways and routes of exposure - ANSWERS✔-Diet /food
contamination of drinking water
household dust/soils
skin/dermal contact
inhalation/spray drift from pesticide
occupational clothes/ bring home hazards.
\.Applications of Exposure Assessment (4) : U,S,I,T - ANSWERS✔-- Understand the
role of environmental exposures in the etiology of disease
- Support risk assessment
- Identify and characterize susceptible populations
- Tracking of environmental exposures
, \.Environmental health paradigm (6): P,F,H,I,B,H. Where is human susceptibility -
ANSWERS✔-1. Pollution sources and environmental concentrations
2. Fate and transport
3. Human exposure
4. Internal dose
5. Biologically effect
6. Health Benefits
__________________________
Human Susceptibility:
- Each one except between Pollution sources and fate and transport
Epidemology
-Everything except each one except between Pollution sources and fate and
transport
\.Populations of Concern for Environmental Exposures (8) and why? - ANSWERS✔-
-Workers=
-Children= their immune system and detoxifying organs are developing and are
not capable of responding to environmental toxins
-Infants=
-Pregnant women=
-Elderly=
-Individuals with underlying disease=
-Impoverished/low income/low SES=
-Racial and ethnic minorities=
AND VERIFIED ANSWERS
\.What is environmental health? - ANSWERS✔-- Aspects of human health,
including quality of life, and related behaviors that are determined by physical,
chemical, biological, and social/cultural factors in the environment
- Theory and practice of assessing, correcting, controlling and preventing factors in
the environment that can adversely affect the health of present and future
generations
\.Name types of environmental agents (Chemical, Biological, Physical) that
impacts health and give example of each. - ANSWERS✔-Chemical: Air & water
pollutants, Pesticides, consumer products
Physical: Noise, Radiation, heat, dust
Biological: Bacteria, virus, fungi
______________________________________
-Chemical: Pesticides can cause throat irritation, sneezing, and coughing.
-Physical: Radiation can penetrate the skin and damage cells inside
-Biological: Bacteria can cause diseases such as cholera and TB.
\.Name one historically significant environmental health event/catastrophe -
ANSWERS✔-- London smog (1952)
,Air pollution episode.
=A period of cold weather, combined with an anticyclone and windless conditions,
collected airborne pollutants - mostly arising from the use of coal - to form a thick
layer of smog over the city.
Aftermath =Environmental legislation since 1952, such as the City of London
(Various Powers) Act 1954 and the Clean Air Acts of 1956 and 1968, led to a
reduction in air pollution.
\.What is exposure? - ANSWERS✔-The contact between an agent and a receptor.
The contact takes place at an exposure surface over an exposure period
\.Describe exposure pathways and routes of exposure - ANSWERS✔-Diet /food
contamination of drinking water
household dust/soils
skin/dermal contact
inhalation/spray drift from pesticide
occupational clothes/ bring home hazards.
\.Applications of Exposure Assessment (4) : U,S,I,T - ANSWERS✔-- Understand the
role of environmental exposures in the etiology of disease
- Support risk assessment
- Identify and characterize susceptible populations
- Tracking of environmental exposures
, \.Environmental health paradigm (6): P,F,H,I,B,H. Where is human susceptibility -
ANSWERS✔-1. Pollution sources and environmental concentrations
2. Fate and transport
3. Human exposure
4. Internal dose
5. Biologically effect
6. Health Benefits
__________________________
Human Susceptibility:
- Each one except between Pollution sources and fate and transport
Epidemology
-Everything except each one except between Pollution sources and fate and
transport
\.Populations of Concern for Environmental Exposures (8) and why? - ANSWERS✔-
-Workers=
-Children= their immune system and detoxifying organs are developing and are
not capable of responding to environmental toxins
-Infants=
-Pregnant women=
-Elderly=
-Individuals with underlying disease=
-Impoverished/low income/low SES=
-Racial and ethnic minorities=
