Deck 21: Environmental Public Health

Question 1

The human species has survived to this point in time by creating a relatively healthy and safe environment by what two methods?

Answer 1

-Adapting biologically through the evolution of the immune system that provides, to some extent, built-in resistance to diseases and sensitivities to allergens.
-Developing technologically by modifying both the natural environment and our biological response to threats in the environment.

Question 2

FAT TOM is a mnemonic to help us remember conditions conducive for growth of bacteria. What does the mnemonic stand for?

Answer 2

FAT TOM stands for:
-Food (proteins and carbohydrates)
-Acidity (pH of 4.6 to 7.5)
-Temperature (temperature danger zone TDZ = 41°F = 5°C 140°F = 60°C)
-Time (>4 hours in TDZ)
-Oxygen (varies)
-Moisture (water)

Question 3

The EPA has identified six "criteria pollutants" and developed guidelines known as the National Ambient Air Quality Standards (NAAQS) for setting permissible levels for the protection of public health and welfare. What are the six criteria pollutants identified?

Answer 3

The criteria pollutants are:
-Carbon monoxide (CO)
-Nitrogen oxides (NOx)
-Sulfur dioxide (SO2)
-Lead (Pb)
-Ground-level ozone (O3)
-Particulate matter (PM)