bioaccumulation (pesticides) a team pickles production by james pickles
TRANSCRIPT
![Page 1: Bioaccumulation (pesticides) A Team Pickles Production By James Pickles](https://reader036.vdocument.in/reader036/viewer/2022082709/56649cda5503460f949a49d3/html5/thumbnails/1.jpg)
Bioaccumulation (pesticides)
A Team Pickles Production
By James Pickles
![Page 2: Bioaccumulation (pesticides) A Team Pickles Production By James Pickles](https://reader036.vdocument.in/reader036/viewer/2022082709/56649cda5503460f949a49d3/html5/thumbnails/2.jpg)
What is it?
• It’s a term for the accumulation of substances in an organism or part of an organism
• for example pesticides
• It occurs if the pesticide level is persistent
• It accumulates in the fatty tissues of the organism
![Page 3: Bioaccumulation (pesticides) A Team Pickles Production By James Pickles](https://reader036.vdocument.in/reader036/viewer/2022082709/56649cda5503460f949a49d3/html5/thumbnails/3.jpg)
Continued
• The level at which a substance accumulates depends on the rate of uptake (through the gills of a fish, contact with the skin)
• How quickly the substance is removed depends on the metabolic process, the lipid content of the organism and other environmental and physical factors
![Page 4: Bioaccumulation (pesticides) A Team Pickles Production By James Pickles](https://reader036.vdocument.in/reader036/viewer/2022082709/56649cda5503460f949a49d3/html5/thumbnails/4.jpg)
Continued
• The more hydrophobic a substance is the more likely it is to bioaccumulate
• If the pesticide level within an animal is high enough it can kill the animal
• The pesticide is passed on to other organisms when the ones with pesticides contained in the fatty tissues are eaten (biomagnification)
• The concentration of the pesticide is then increased as a predator will eat numerous of the prey
![Page 5: Bioaccumulation (pesticides) A Team Pickles Production By James Pickles](https://reader036.vdocument.in/reader036/viewer/2022082709/56649cda5503460f949a49d3/html5/thumbnails/5.jpg)
Biomagnification
![Page 6: Bioaccumulation (pesticides) A Team Pickles Production By James Pickles](https://reader036.vdocument.in/reader036/viewer/2022082709/56649cda5503460f949a49d3/html5/thumbnails/6.jpg)
Overcoming the Problem…
• To overcome the problem biodegradable pesticides should be used so they aren’t stored in the tissues of organisms