“Water” you waiting for?Please get out a piece of paper for today’s

work and read the board!

Pollutant – something that doesn’t belong and causes harm

Source – place where pollution is created Effect – what the pollutant does; the harm it

causes

Key ideas

• point sources – specific location that can be identified

• nonpoint sources – spread out, may not be easy to identify.

For each of the following examples, POINT if it’s a POINT source!

Two types of sources

Coal-fired power plant

Clear cut logging operation

Agricultural fields: Point or non point?

Outfall from sewage treatment plant

CAFO/Feedlot: Point or non point?

City streets

Active or abandoned mine

Mine tailings piles/gangue

Golf course

Factory effluent

Petroleum refinery

Suburban lawns

Carry water from streets to local bayou/water way

ONLY WATER should go down these!

NO:◦ Litter◦ Leaves◦ Pet poop◦ Oil/paint

Storm drains

Building drains go to the sewage treatment plantStorm drains go to the water way

Pollutant – something that doesn’t belong and causes harm

Source – place where pollution is created Effect – what the pollutant does; the harm it

causes

Key ideas

POLLUTANT OF THE DAY:

PLANT NUTRIENTS (Nitrogen and phosphorus)

Plant nutrients (nitrogen and phosphorus) commonly found in fertilizers

Other sources of plant nutrients Untreated sewage Manure from livestock Pet poop Detergents

Hypoxic zones “Dead zones” – form in the summer Gulf of Mexico

Global dead zones

PUZZLE TIME!