Final Part 4 Flashcards
Who regulates the quality of municipal drinking water?
EPA
T/F: Wastewater, liquid waste, and sewage are all technically the same thing.
True
What is the purpose of Wastewater Treatment?
to improve quality to be be able to release back into the environment
T/F: During typical Wastewater treatment, disinfection is optional.
True; 85-95% of pollutants are removed during Preliminary treatment, Primary treatment (sedimentation), and Secondary treatment (microbial degredation)
What is the term for the energy released when atoms split?
radiation
What are the 3 sources of natural radiation?
extraterrestrial
terrestrial
internal
What are some examples of Human-made radiation?
x-rays, nuclear medicine, consumer products, nuclear power plants, and nuclear weapons
What is the greatest source of ionizing raditation?
radon (naturally occurring)
T/F: UV-A Radiation cause the most harm to humans of all UV radiation.
False; UV-B does (skin cancers)
When looking for skin cancers, what does ABCD stand for?
Asymmetry
Border irregularity
Color
Diameter
What is the #1 cause of lung cancer in non-smokers?
Radon
When is naturally released radon harmful to humans?
when it becomes trapped inside a building
T/F: Disposal of nuclear waste is a problem in the US and there are 103 nuclear power plants in the US in only 31 states.
True
What are chemical hazards?
those caused by the mismanagement of chemicals
T/F: Children are much less vulnerable to chemical hazards like lead, ETS, and pesticides.
False; much more vulnerable