5.3 Approaches to pollution management

What are the 3 approaches to pollution management?
Replace, regulate, restore
What is the first approach, How can this be done?
Replace
Replace with alternatives, changing human activities
What is the second approach, How can this be done?
Regulate
Regulate and reduce quantities of pollutants released at the point of emission
What is the third approach, How can this be done?
Restore
Restore the environment, cleaning up the pollutant and restoring the ecosystem after the pollution has occurred
What human factors affect approaches to pollution management?
Cultural, Political, Economic affect choice of pollution management strategies and their implementation and effectiveness.
What are the cultural factors that influence approaches to pollution management?
– May not be equipped with necessary skills and knowledge to change their approach to pollution management
– May not be willing to change habits
What are the political factors that influence approaches to pollution management?
– Weak regulation and lack of enforcement
– Strong corporate involvement and lobby in policy decisions in MEDCs
– Jobs or environment?
What are the economic factors that influence approaches to pollution management?
– Cost of reducing or cleaning up pollution would reduce the likelihoods of solving the pollution problem
– Production requires raw materials from the environment – this wont stan in the way of man’s technocentric philosophy
What is DDT
DDT= insecticide first synthesised in 1874, commonly used pesticide for insect control in the US
What were the restrictions placed on DDT by the world health organisation?
1970s & 80s agricultural use of DDT was banned
Stockholm convention 2004 – restricted use of DDT to disease control
What are the benefits of DDT?
– Combatting malaria- by spraying DDT on the walls adult mosquitos who carry the malaria parasite die –> by banning DDT in some countries the malaria disease has decreased statistically.
– World health organisation has reaffirmed its commitment to phase DDT out
What are the costs of DDT?
– Farmers exposed to DDT has increased incidence of asthma and diabetes
– Some people exposed had higher risk of liver, breast and pancreatic cancer
– Risk for early pregnancy loss and premature birth
– Infertility
Difficult to extract from system it has 30 years half life in soil
What is my evaluation of the world health organisations restrictions on DDT?
– Adequate measures, the effects on ecosystems can be seen through biomagnification and can prove to be extremely damaging to the environment