Chapter 11 Water Pollution Flashcards Preview

Mid Term 2 CONSERVE > Chapter 11 Water Pollution > Flashcards

Flashcards in Chapter 11 Water Pollution Deck (23)
Loading flashcards...
1
Q

What is point source?

A

“any single identifiable source of pollution from which pollutants are discharged, such as a pipe, ditch, ship or factory smokestack” Factories and sewage treatment plants are two common types of point sources.

2
Q

What is a non-point source?

A

comes from areas such as farmlands where chemical are used, drain into ground or surface water, other sources are pastures, barnyards, construction sites, homes, streets, lawns.

3
Q

the increase in concentration of a chemical substance in a food web as it passes from lower levels to highest levels.

A

Biomagnification

4
Q

Point Source
Easier to identify
Nonpoint Source
Growing threat

A

Source type

5
Q
Sediment
Inorganic nutrients
Thermal pollution
Disease-producing organisms
Toxic organic chemicals
Heavy metals
Oxygen-demanding organic wastes
A

Chemical Pollution

6
Q
Construction 
Agriculture
Impacts
Blocks light
Buries nooks & shelters
Scours organisms
Interferes with navigation
Damages hydro dams
A

Sediment

7
Q
Nitrates and phosphates
Accelerated eutrophication
Causes
    Agriculture
    Domestic sewage
Groundwater impact
A

Inorganic Nutrients

8
Q
Source 
    Industrial cooling
Impacts
    Reproduction
    Disease
    Direct Mortality
    Destructive Organisms
Benefits
A

Thermal Pollution

9
Q
Common microorganisms
    Coliform
    Fecal strep 
    Pfiesteria
Purification
Sewage treatment
A

Disease-Producing Organisms

10
Q
Persistent
BPA (plasticizer), DDT, PCB
Landfills
Septic tanks
Fuel storage tanks
Contaminated sites
    Superfund
Injection wells
A

Toxic Organic Compounds

11
Q

Sewage
Dredge spoils
Plastics
Oil Pollution

A

Pollution of Oceans

12
Q

the nutrient enrichment of aquatic ecosystems, occurs naturally as a lake or river ages over long periods

A

eutrophication

13
Q

characterized by moderate levels of nutrients, lakes good for fishing boating swimming

A

mesotrophic

14
Q

clear lake waters surrounded by pine snd spruce forest clear because of scarcity of suspended algae resulting from the low levels of nutrients

A

oligotrophic lake

15
Q

Established the basic structure for regulating pollutant discharges into the waters of the United States. Gave EPA the authority to implement pollution control programs such as setting wastewater standards for industry

A

water pollution control act 1972

16
Q

federal law that regulates the discharge of pollutants into the nation’s surface waters, including lakes, rivers, streams, wetlands, and coastal areas. Passed in 1972 and amended in 1977 and 1987, originally known as the Federal Water Pollution Control Act.

A

Clean Water Act 1977

17
Q

was established to protect the quality of drinking water in the U.S. This law focuses on all waters actually or potentially designed for drinking use, whether from above ground or underground sources

A

Safe Drinking Water Act 1974

18
Q

types of sewage treatment and disposal

A

treatment plants
storm drains
septic tanks

19
Q

treatment plant that physically removes solids from the wastewater

A

primary treatment plant

20
Q

rely on aerobic bacteria to break down degradable organic materials- activated sludge process, trickling filter

A

secondary treatment plant

21
Q

most advanced form of water treatment designed to remove most of the remaining pollutants notably the nitrates and phopshates

A

tertiary treatment plant

22
Q

heavy metal pollutatnts

A

lead
mercury
cadmium

23
Q

pollutant that is broken down by the naturally occurring microorganisms that consume dissolved oxygen lowering the level of oxygen

A

oxygen demanding organic waste