PPT-What is bioaccumulation?

Bioaccumulation the accumulation of a contaminant or toxin in or on an organism from all sources eg food water air An increase in the concentration of a chemical in a biological organism over time compared to the chemicals concentration in the environment Compounds accumulate in living things any time they are taken up and stored faster than they are broken down metabolized or excreted. Week 2:. Organophosphate . Insecticides. a. Acute toxicity. Categories of Effects. Muscarinic. Mimic action of muscarine. Peripheral nervous system only. Smooth muscle, heart, exocrine glands. Bronchoconstriction, salivation, lacrimation, perspiration. Cyclodiene Insecticide. Michelle Nakamura. Biol 468. Physical and Chemical Properties. Aldrin (C. 12. H. 8. Cl. 6. ). MW: 364.91. Appearance:. Pure – white powder. Commercial grade – tan powder. Low water solubility (< 27 ng/L). Zill. Ackerly. Creek and Glenburn Pond Chromium Contamination. Glenburn and Precision National Plating. Plating until 1999. Contaminated soil and ground water. Chromium ran down . Ackerly. Creek to Glenburn pond. Give an estimate of the current world population.. Can you think of any problems caused by an increase in human population? . Food, oxygen and water.. Quick Question. 7,253,730,323 (in August 2014). Increased demand for food, increased pollution ……. Habitat. Ecosystem. Wetland. Sediment. Food chain. Benthos/Benthic . Bioaccumulation. Pollution. What is pollution?. What does pollution look like? Smell like? Taste like?. What are examples of pollution near your school?. Bioaccumulation of Methylmercury in Wood Frogs and Spotted Salamanders in Vermont Vernal Pools Steve Faccio – Vermont Center for Ecostudies Kate Buckman – Biological Sciences, Dartmouth College Physical stateColorYellowOdorFlash pointExplosive propertiesBland199C losed cupNonexplosiveHealth effectsThe information contained in the table below may be useful to someone handling the concentrated and toxicity. Dr Dorota . Jarosinska . WHO European Centre for Environment and . Health. Joint thematic session – Heavy metals with focus on mercury. Fourth . Joint session of the Working Group on Effects . Entry requirements. English – Grade 5. Biology – Grade 5. Geography GCSE is not a requirement but is helpful.. This IB will work well with Biology A level/IB, Geography A Level, animal care/management courses, business courses (as businesses are looking to become much more sustainable).. , cord blood, and the meconium of newborn infants. Chlorpyrifos is released directly to the environment when it is applied as a pesticide. Use of the substance has greatly increased since its introdu