Topic 5: Pollution management Flashcards
Measure of air pollution
Use a large glass pane with some sticky substance on it. Leave exposed for a particular amount of time and count dust particles
Measure of soil pollution
Nitrate and phosphate test.
Collect soil, drain the water and test the water.
BOD (biochemical oxygen demand)
Measure of the amount of dissolved oxygen required to break down the organic matter in a given volume of water
Indicator species
Species that give a measure of the quality of an ecosystem. Measured through the presence, absence, abundance or scarcity of a particular species
Biotic index
Scale that gives a measure of the quality of an ecosystem.
Measured through the presence, abundance, or scarcity of a particular species
Approaches to human pollution management
Altering human activity
Regulating
clean up
Eutrophication
The process in which excess nutrients are added to fresh water ecosystem
Bad for the water body as it can lead to an increase in algae, limiting productivity
Managing eutrophication
A.R.C
A- create fertilizers which are natural to reduce phosphates.
R- control the amount of pollution
C-Pumping mud in a lake to reduce eutrophication
Types of solid domestic waste
paper, glass, metal, plastics, organic waste
Management strategies
The 3 R’s
Reduce- landfills, incinerators
Reuse- reuse plastic and glass bottles
Recycle- composting
levels of atmosphere
Stratosphere
Ozone layer
Troposphere
Location and effect of Ozone layer
Ozone layer in stratosphere is good- block UV rays
Ozone layer in Troposphere- pollutant and danger to human life
UV radiation and ozone
UV radiation is absorbed during the formation and destruction of ozone from oxygen
Pollutants that affect the production of ozone
CFCs, HCFCs, halons and methyl
CFCs and HCFCs
Chlorofluorocarbons and hydrochlorofluorocarbons
When they rise to the stratosphere, they get broken to chlorine atoms which reach with ozone causing ozone destruction.
