ENVIROMENTAL HEALTH SCIENCE FINAL EXAMS
WITH VERIFIRED ANSWERS PAPER 1- YEAR 2024-
2025
1. What is good ozone?
Good ozone is in the stratosphere, it absorbs UV.
2. Explain bad ozone.
Bad ozone is in the troposphere, it irritates the lungs and causes increased
hospitalizations due to cardiac and respiratory problems.
3. What are the four regions of the atmosphere starting with the closest?
Troposphere, Stratosphere, Mesophere, Thermosphere
4. Which region has human life?
Troposphere
5. Which region has the ozone layer?
Stratosphere
,6. What are hazardous air pollutants and how are they different than criteria air
pollutants?
They are less common than criteria air pollutants but more localized and toxic.
They come from targeted sources and the standards for HAPs are set solely on
the basis of available control technology.
7. How are the atmospheric layers divided?
Based on temperature gradients. Temperature lowers when altitude heightens
except in the stratosphere where the ozone is. In the stratosphere the
temperature gets hotter as the altitude decreases.
8. What are the two major effect of human-caused changes to the atmosphere?
1. Ozone layer depletion
2. Climate change/Global warming
9. What are the NAAQS?
National Ambient Air Quality Standards for 6 criteria pollutants. These are the
maximum level of air pollutants in the air. The standards are set by harm done
on health.
10.What are the 6 criteria air pollutants?
, 1. Lead (Pb)
2. Particulate Matter
3. Carbon Monoxide (CO)
4. Sulfur Dioxide (SO2)
5. Nitrogen Dioxide (NO2)
6. Ozone (O3)
11.Where is lead found and what are the health effects?
No longer in the US leaded gasoline, however it is produced from coal-fired
power plants. Causes memory/concentration problems, raised blood pressure,
digestion problems, nervous disorders, and can harm fetus.
12.What are the health effects of Particulate Matter and where is it found?
Traffic, agriculture, dust, soot, wood burning. Can be ingested & inhaled. The
smaller the size of the particulate matter the worst it is for the lungs as it goes
in deeper.
13.How is carbon monoxide put into the air and what are its effects on the
health?
Transportation. Causes headaches, dizziness, nausea, and can result in death.
14.Sulfur Dioxide comes from what and how can it negatively affect your health?
WITH VERIFIRED ANSWERS PAPER 1- YEAR 2024-
2025
1. What is good ozone?
Good ozone is in the stratosphere, it absorbs UV.
2. Explain bad ozone.
Bad ozone is in the troposphere, it irritates the lungs and causes increased
hospitalizations due to cardiac and respiratory problems.
3. What are the four regions of the atmosphere starting with the closest?
Troposphere, Stratosphere, Mesophere, Thermosphere
4. Which region has human life?
Troposphere
5. Which region has the ozone layer?
Stratosphere
,6. What are hazardous air pollutants and how are they different than criteria air
pollutants?
They are less common than criteria air pollutants but more localized and toxic.
They come from targeted sources and the standards for HAPs are set solely on
the basis of available control technology.
7. How are the atmospheric layers divided?
Based on temperature gradients. Temperature lowers when altitude heightens
except in the stratosphere where the ozone is. In the stratosphere the
temperature gets hotter as the altitude decreases.
8. What are the two major effect of human-caused changes to the atmosphere?
1. Ozone layer depletion
2. Climate change/Global warming
9. What are the NAAQS?
National Ambient Air Quality Standards for 6 criteria pollutants. These are the
maximum level of air pollutants in the air. The standards are set by harm done
on health.
10.What are the 6 criteria air pollutants?
, 1. Lead (Pb)
2. Particulate Matter
3. Carbon Monoxide (CO)
4. Sulfur Dioxide (SO2)
5. Nitrogen Dioxide (NO2)
6. Ozone (O3)
11.Where is lead found and what are the health effects?
No longer in the US leaded gasoline, however it is produced from coal-fired
power plants. Causes memory/concentration problems, raised blood pressure,
digestion problems, nervous disorders, and can harm fetus.
12.What are the health effects of Particulate Matter and where is it found?
Traffic, agriculture, dust, soot, wood burning. Can be ingested & inhaled. The
smaller the size of the particulate matter the worst it is for the lungs as it goes
in deeper.
13.How is carbon monoxide put into the air and what are its effects on the
health?
Transportation. Causes headaches, dizziness, nausea, and can result in death.
14.Sulfur Dioxide comes from what and how can it negatively affect your health?
