APES Ch 14 Water Pollution

The United States legislation that empowers the EPA to establish maximum contaminant levels in drinking water is

Which of the following is a possible end result for sludge from a sewage treatment plant?

I. Deposited in a landfill
II. Incinerated
III. Used as a fertilizer

Which pollutant or pollutants are most likely to create eutrophic areas?

Bacteria are beneficial to wastewater treatment because




e.all of the above are beneficial aspects

The difference between a point source and a nonpoint source of water pollution is

Use Figure 14-1. A country with approximately one sixth of the world’s population and reported incidences of cholera is

Use Figure 14-2. It can be interpreted from the graph that the greatest environmental threat due to acid deposition most likely occurred

Mercury is especially dangerous to the general public due to



e.it occurring naturally in bedrock

For which substances does the EPA allow a MCL (maximum contaminant level) of 0 in drinking water?




e.Benzene and Mercury

Environmental advantages of septic tanks include all of the following EXCEPT

It is estimated that initially the Deepwater Horizon oil platform accident released 53,000 barrels per day. At one barrel equivalent to 42 gallons that would result in roughly ____ gallons per day.

Primary treatment in a sewage treatment plant is designed to

A man-made pond constructed to hold animal waste is called a

Use Figure 14-4. Which of the following areas would be associated with the most nutrient output?

Dead zones, such as the one in the Gulf of Mexico that exists off the coast of Louisiana, are characterized by
all of the following EXCEPT

Use Figure 14-3. The highest concentrations of mercury in 2008 are found

Which of the following are types of wastewater?
I. Sewage water from toilets
II. Water from showering and bathing
III. Water from washing clothes

What substance is believed to be responsible for the development of eggs in the testes of some male fish?

Methods used to remove spilled oil from the surface of the ocean include
I. containment boom and oil vacuums
II. chemical dispersants
III. large screens




e.I, II, and III

Use Figure 14-3. According to the data on the map, the coastal area most likely to be affected by mercury in the ocean waters would be

What health threat is commonly found in the water of older homes due to old plumbing systems?



e.phosphates

The graph in figure 14-5 shows the effects of random trials in a study by the Centers for Disease Control to help improve public health by making drinking water safe. A dilute solution of sodium hypochlorite is added to the drinking water as a disinfectant.

Use Figure 14-5. The use of the Safe Water System provided the most significant results in which country?

The Federal Water Pollution control Act of 1948 was the precursor legislation to the

Which of the following diseases is NOT caused by wastewater exposure?

Which of the following is NOT true regarding the Chesapeake Bay?

Put the events leading to cultural eutrophication in the correct order.
W–leaching of nutrients from fertilized agricultural lands
X-fish die-off
Y-algal bloom

Use Figure 14-2. The SO2 emissions in 2009 are about half the amount of the emissions of

The resulting acid deposition from SO2 emissions can occur as

What is the first step of treating wastewater at a municipal sewage treatment plant?

Human wastewater entering into bodies of water can be dangerous because
I. It causes a drop in the biological oxygen demand
II. It can lead to cultural eutrophication
III. The wastewater can carry pathogens