9 types of water pollutants

1. pathogens 2. oxygen demanding wastes 3. water soluble inorganic chemicals 4. inorganic plant nutrients, 5. organic chemicals 6. sediments/suspended matter 7. water soluble radioactive isotopes 8. thermal pollution 9. genetic pollution

9 types of water pollutants

pathogens

viruses, bacteria, protozoans, worms enter by human/animal waste, disease causing agent

msx, dermo, e coli from cow poop

examples of pathogens

oxygen demanding wastes

animal and plant waste (organic material broken down by aerobic bacteria over 5 days at 68 degrees F)- leaves, decreases dissolved oxygen

hypoxia, anoxic

key words for oxygen demanding wastes

water soluble inorganic chemicals

acids (acid deposition), salts (road), and toxic metals such as Hg and Pb (burning coal)

road salts for snow, acid deposition, burning coal

examples of water soluble inorganic chemicals

inorganic plant nutrients

N and P lead to DO depletion , lowers oxygen carrying capacity of blood

manufactured fertilizers

key words for inorganic plant nutrients

organic chemicals

oils, gasoline, plastics, pesticides, cleaning solvents, detergents

fossil fuels

examples of organic chemicals

sediments or suspended matter

soil particles from erosion: reduces photosyn, carries pesticides

water soluble radioactive isotopes

biomagnification- burning coals, concentration of toxins builds as a species eats another animal

thermal pollution

heat pollution (nuclear plants heat up water w/steam) lowers DO, alters rates of metabolism (heat increases metabolism)

traditional electricity uses nonrenewable resources such as coal or natural gas

key words for thermal heat

genetic pollution

intro of non-nation species: zebra mussels (clean the water) in Great Lakes from ship ballast, caulerpa taxifolia from Mediterranean

invasive species

key word for genetic pollution

ship ballast

zebra mussels are in the great lakes from _________ _____ where ships are balanced based on their load

they clean the water but too much can take too many nutrients for other native species

how can zebra mussels be harmful?

blue catfish

what invasive species are in va?

organisms that support the structure and function of an ecosystem

define keystone species

organisms that undermined the structure and function of an ecosystem

define the invasive species

living organism

organic means any once __________ _________

manufactured fertilizers

inorganic means ______ __________

organic base

pesticides and detergents have an ___________ ________ (oil and gas are organic)