Environmental Science Water Pollution

Requires minimum safety standards for community water supplies

• Safe Drinking Water Act
• Clean Water Act
• Clean Air Act
• Resource Conservation Recovery Act

Mandates the restoration and maintenance of the chemical, physical, and biological integrity of the nation's waters

• Safe Drinking Water Act
• Clean Water Act
• Clean Air Act
• Resource Conservation Recovery Act

Found in old plumbing pipes and ceramic glazes

• Asbestos
• Radon
• Lead
• Formaldehyde

In a river ecosystem, dissolved oxygen concentrations drop quickly downstream from a point-source input of organic matter into the river due to

• increasing populations of mayfly and stonefly larvae
• increasing bacterial activity as organic matter decays
• decreasing bacterial activity as turbidity increases
• decreasing water temperature

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which method is used most frequently in the United States today?

• Sanitary landfill
• Incineration
• Discharge to sewers, streams, and rivers
• Chemical treatment
• Biological treatment

Which method introduces microorganisms to break down hazardous organic compounds?

• Sanitary landfill
• Incineration
• Discharge to sewers, streams, and rivers
• Chemical treatment
• Biological treatment

Tags

NGSS.HS-LS2-7

Which method would be best suited for neutralizing the acidic components of waste?

• Sanitary landfill
• Incineration
• Discharge to sewers, streams, and rivers
• Chemical treatment
• Biological treatment

Tags

NGSS.HS-ESS3-4

NGSS.HS-ETS1-3

Joann Burkholder studied

• Pfiesteria

• Thermal pollution

• Benzene

• Phosphates

Tags

NGSS.HS-ESS2-5

NGSS.HS-LS2-6

Pfiesteria is...

• fecal waste found in water

• a harmless bacteria

• a microscopic organism whose diatom gets aggressive and turns into a horrible organism when exposed to nitrates/phosphates from CAFOs

• found in fertilizers in agricultural runoff

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

How does mercury get into water systems

• coal burning

• volcanoes

• fecal matter