Air Quality
What do we use to monitor outdoor air quality?
Air Quality Health Index
What is a source of indoor air pollution?
Answers will vary.
What can you do if you have hard water?
Use a water softener.
What are the 3 gases that make up most of our air?
Nitrogen
Oxygen
Argon
What is the difference between a primary and secondary pollutant?
Primary Pollutant: Substances released directly into the atmosphere in amounts that pose health threats
- E.g., carbon monoxide, nitrogen dioxide, sulfur dioxide
Secondary Pollutant: Substances that result from primary air pollutants interacting with other substance
- E.g., ozone
E.g., ozone
What does hard water contain that soft water doesn't?
Calcium and magnesium
What does an air quality health index of 5 mean?
Moderate risk
What are the 3 ways that pollutants can enter organisms?
Inhalation, ingestion, absorption
Which of the following steps of water treatment is the water stirred to create larger particles (flocs) of impurities?
1. Water Source, 2. Coagulation, 3. Flocculation, 4. Sedimentation, 5. Filtration, 6. Disinfection
3. Flocculation
An individual experiences shortness of breath, coughing, and a tight chest at work however, their symptoms disappear when they leave the workplace. Is this an example of sick building syndrome or building related illness? How do you know?
Sick Building Syndrome - no known cause and symptoms improve when the individual leaves the building
What is the difference between anthropogenic and natural sources of pollution? Give an example of each.
Anthropogenic - human
Natural - nature
Mercury is found in a local lake at a concentration of 0.000005 ppm. Researchers found that small trout have a concentration of 0.03 ppm and larger trout have a concentration of 1.0 ppm. Is this an example of biomagnification or bioaccumulation?
Bioaccumulation - accumulates in 1 organisms over time