Addition of a substance at a higher rate than the environment can handle.
List 3 major pollutants
Agriculture, industrial waste and transport.
pollution from only one source.
pollution from many sources, very disperse
Which type of pollution is easier to manage?
why is point source easier to manage
Clearly identify where the pollution is coming from
example of a biotic indices & indicator species in pollution
Invertebrates in water
two direct methods of measuring pollution
measuring nitrate in a river or air pollutants
what is BOD
biological oxygen demand is the amount of dissolved oxygen required to break down the organic material in a given volume of water though aerobic biological activities in microbes.
what does high BOD indicate
higher nutrients and more algae which results in more pollution.
Why is BOD an indirect pollution indicator
it measures the amount of oxygen demanded by bacteria which is a result of pollution.
what human factors affect the approaches to pollution management.
Cultural values, political systems and economic systems will influence the choice of pollution management strategies and their effective implementation.
What affects did DDT have in the peregrine falcon
accumulations of pesticide in the ecosystem caused the falcon at the highest tropic level to decline in population.