apes unit 3 types of water pollutants

pathogens

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

pathogen ex

E. Coli, Dermo and MSX

oxygen demanding wastes

animal and plants(organic material broken down by aerobic bacteria over 5 days at 68 degrees F)

O2 demanding waste ex

hypoxic and anoxic yard waste

water soluble inorganic chemicals

acids, salts, and toxic metals such as Hg(mercury) and Pb(lead)

water soluble inorganic chemicals ex

acid rain, roads salted, hypertonic

inorganic plant nutrients

N+P lead to dissolved oxygen(DO) depletion lowers O2 carrying capacity of blood agriculture

organic chemicals

oils, gasoline used to make plastics, pesticides, clean solvents, detergents

sediments or suspended matter

soil particles from erosion(turbidity): reduce photosynthesis, carries pesticides

water soluble radioactive isotopes

biomagnification

water soluble radioactive isotopes ex

come from burning coal

thermal heat from power/industrial plants

heat pollution lower DO, alter rates of metabolism

genetic pollution

introduction of non-native(invasive) species; zebra mussels in Great Lakes from ship ballast, Caulerpa taxifolia from Mediterranean

genetic pollution ex

blue catfish in the James River