water pollution n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Water Pollution PowerPoint Presentation
Download Presentation
Water Pollution

Loading in 2 Seconds...

play fullscreen
1 / 15

Water Pollution - PowerPoint PPT Presentation


  • 97 Views
  • Uploaded on

Water Pollution . Chapter 21. Sources. Point Source . Non Point Source . Types. Organic Inorganic Radioactive Thermal. Organic. Nitrogen Phosphorous Dead Stuff Pathogens Sh ee t. Cultural (anthropogenic) Eutrophication. Cholera . Lake Pollution. Eutrophication. Eutrophication.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Water Pollution' - ninon


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
sources
Sources

Point Source

Non Point Source

types
Types
  • Organic
  • Inorganic
  • Radioactive
  • Thermal
organic
Organic
  • Nitrogen
  • Phosphorous
  • Dead Stuff
  • Pathogens
  • Sheet

Cultural (anthropogenic) Eutrophication

Cholera

slide11

Polluted air

Pesticides

and fertilizers

Hazardous

waste

injection

well

Deicing

road salt

Coal strip

mine runoff

Buried gasoline

and solvent tanks

Gasoline station

Pumping

well

Cesspool,

septic tank

Water

pumping well

Waste lagoon

Sewer

Leakage

from

faulty

casing

Landfill

Accidental

spills

Discharge

Unconfined freshwater aquifer

Confined

aquifer

Confined freshwater aquifer

Groundwater

flow

Fig. 21-7, p. 501

slide12

Leaking

tank

Aquifer

Bedrock

Water

table

Groundwater

flow

Free gasoline

dissolves in

groundwater

(dissolved

phase)

Gasoline

leakage plume

(liquid phase)

Migrating

vapor phase

Water well

Contaminant plume moves

with the groundwater

Fig. 21-8, p. 502

slide14

Industry

Nitrogen oxides

from autos and

smokestacks,

toxic chemicals,

and heavy metals in effluents flow into bays and estuaries.

Cities

Toxic metals and oil from streets and parking lots pollute waters;

Urban sprawl

Bacteria and viruses from

sewers and septic tanks contaminate shellfish beds

Construction sites

Sediments are washed into

waterways, choking fish and plants, clouding waters, and blocking sunlight.

Farms

Runoff of pesticides, manure, and fertilizers adds toxins and excess nitrogen and phosphorus.

Red tides

Excess nitrogen causes

explosive growth of

toxicmicroscopic algae,

poisoning fish and

marine mammals.

Closed

shellfish beds

Closed

beach

Oxygen-depleted

zone

Toxic sediments

Chemicals and toxic metals contaminate shellfish beds, kill spawning fish, and

accumulate in the tissues of bottom feeders.

Oxygen-depleted zone

Sedimentation and algae

overgrowth reduce sunlight,

kill beneficial sea grasses, use

up oxygen, and degrade habitat.

Healthy zone

Clear, oxygen-rich

waters promote growth

of plankton and sea grasses,

and support fish.

Fig. 21-10, p. 505

plastic
Plastic

http://www.ted.com/talks/capt_charles_moore_on_the_seas_of_plastic.html

http://www.bluecommunity.info/video/view/171869/?topic=75645