Unit 8: Aquatic and Terrestrial Pollution
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Name: Unit 8: Aquatic and Terrestrial Pollution Topics (Textbook Module Numbers) I. Sources of Pollution (41) IX. Solid Waste Disposal (51) II. Human Impacts on Ecosystems (41) X. Waste Reduction Methods (52) III. Endocrine Disruptors (42) XI. Sewage Treatment (41) IV. Human Impacts on Wetlands and Mangroves (43) XII. Lethal Dose 50% (LD50) (57) V. Eutrophication (41) XIII. Dose Response Curve (57) VI. Thermal Pollution (44) XIV. Pollution and Human Health (56) VII. Persistent Organic Pollutants (POPs) (42) XV. Pathogens and Infectious Diseases (56) VIII. Bioaccumulation and Biomagnification (42) Vocabulary • Acid deposition • Landfill mitigation • Range of tolerance • Algal bloom • LD50 • Recycling • Bioaccumulation • Leach field • Runoff • Biochemical oxygen • Leachate • Safe Drinking Water Act demand (BOD) • Malaria • Sanitary municipal landfill • Biomagnification • Mangroves • SARS • Boom • Manure lagoon • Secondary treatment • Bubonic plague • Maximum Contaminant • Sedimentation • Cholera Level (MCL) • Septage • Composting • MERS • Septic system • Coral bleaching • Mesothelioma • Septic tank • Dead zone • Methylmercury • Sludge • Decomposition • Nonpoint source • Tertiary treatment • Dispersant • Oligotrophic • Thermal pollution • Dose Response Curve • Oxygen sag curve • Thermal pollution • E-waste • Pathogen • Thermal shock Clean Water • Endocrine disruptors • Perceived obsolescence Act • Eutrophication/ Cultural • Persistent Organic • Tuberculosis Eutrophication Pollutants (POPs) • Wastewater • Fecal coliform bacteria • Planned obsolescence • Water pollution • Great Pacific Garbage Patch • Point source • West Nile virus • Hypoxic • Polychlorinated biphenyls • Wetland • Incineration (PCBs) • Zika virus • Indicator species • Primary treatment 1 https://www.youtube.com/watch?v=9GorqroigqM 21:17 1. Copy the sketches of the 5 stages of the materials economy Extraction Production Distribution Consumption Disposal 2. How much of our natural resources have been trashed in the last few decades? 3. How many planets are needed to support current rates of consumption in the US and Australia? 4. How many trees are being lost in the Amazon each minute? 5. What is being added to the production system that is created dangerous waste products? 6. What food is at the top of the food chain and threatening the health of future generations? 7. What is meant by “externalising costs of production”? 8. Who is paying for the real cost of cheap electronic equipment (i.e. the $4.99 radio)? List three groups at least. 9a. How much material is still in the system after 6 months?____________%. 9b. Where have the remaining materials gone? 10. When did the modern consumer economy come into being? Why? 2 11. According to Annie Leonard, what are some of the social and community interests being neglected while we are busy consuming “stuff”? 12. What do these terms mean? Give an example of each. • planned obsolescence example________________________________________________________ • perceived obsolescence example________________________________________________________ 13a. What is happening to the levels of measured happiness? 13b. What reasons are given? 14. Draw or summarize the steps in the treadmill. 15. One solution which many countries use to deal with increasing waste is to burn it. What problem is associated with burning rubbish? 16. How does recycling help? 17. Why is recycling not enough? (Clue: How many rubbish bins are needed to produce one bin of recycled materials?) 3 I. Sources of Pollution Objective: • Identify differences between point and nonpoint sources of pollution Waste should be viewed as a _____________ , just like other materials. Human systems: Inputs Outputs Waste:____________________________________________________________________________ Is natural waste “useful” or not? _________________________________ : Produced from a single, identifiable location. Examples: _______________________________________: Produced from a more diffuse, broadly defined area Examples: How is it helpful to a community to identify point sources of pollution? Which type of pollution is more difficult to control and why? II. Human Impacts on Aquatic Ecosystems Objective: • Describe negative environmental impacts on suffered by coral reefs. • Explain how oil spills happen, and their negative economic consequences and effects on aquatic ecosystems. • Explain what a dead zone is and how it forms. • Describe how heavy metals can impact water supply. • Identify the major sources of solid waste pollution. • Explain the harmful effects of sediment pollution. Remember this? Summarize: 4 Why are coral reefs important? THREATS: Chemical • Physical • • • • • • • • • Indirect Biological Natural Threats How does human activity exacerbate (magnify) this threat? Storm impacts Temperature changes Salinity changes Predation Algal overgrowth 5 Oil spills Cause harm from surface to bottom of ocean, at all trophic levels 1. Marine mammals and birds→ 2. Fish→ 3. Invertebrates → Case Studies 1.________________________________________________ Supertanker crashed into a reef in Prince William Sound, AK 42 million liters (11 million gallons) Half a million birds and thousands of marine mammals killed 2. ____________________________________________ Exploration might yield up to 1.4 trillion L of oil and natural gas Opponents: will harm pristine habitat and the human population as well 3. ____________________________________________ Explosion at a BP oil rig in the Gulf of Mexico Released 780 million L (206 million gal)—87 days 6000 sea turtles, 26,000 marine mammals, 82,000 birds killed BP Oil Spill Timeline (2:58) https://www.youtube.com/watch?v=QiF-X- Ez9Bs BP Oil Spill 5 Years Later: Wildlife Still Suffering MSNBC (5:53) https://www.youtube.com/watch?v=zcZ9MLDuIl0 Why were there so many birds on the neighboring barrier islands off the Lousiana coast at the time of the spill? What occurred with the land and mangroves? (positive feedback loop!) 6 Why are they in danger of losing the pelican population? What are the steps being taken right now to protect the pelicans? Who is supporting and not supporting? Deepwater Horizon disaster, five years later (10:24) https://www.youtube.com/watch?v=pZKBDVurCdk Correctsit dispersant: Physical evidence that remains even 5 years later Human medical issues BP’s responses to the complaints Economic issues in Grand Isle ______________________________ : Produced by livestock operations and human activities Types: Why is wastewater a problem? _________________________________________________________________ → more oxygen is required for the bacteria to decompose all the organic material → _______________ BOD = ___________ pollution → High BOD = Less ________________________________________ for other forms of life; may cause ______________________________ BOD in the waters of North America has (increased/decreased) since 1976 because: BOD in the waters of Africa and Asia has (increased/decreased) since 1976 because: 7 How is the creation of a dead zone in the ocean or river an example of a positive feedback loop? (Draw it) Oxygen Sag Curve Trout, perch, bass, No fish Pollution- Trout, perch, bass, Pollution-tolerant mayfly, stonefly Fungi, sludge, tolerant fishes mayfly, stonefly fishes (carp, gar) (clean water orgs) worms, bacteria (carp, gar) (clean water orgs) Clean Decomposition Septic Recovery Clean Zones→ Sediment Pollution (_______________________________________) • Caused by construction, agriculture, erosion • Increases _____________________________, reduces sunlight • Clogs gills • ______________________________________ 8 Heavy metals used for industry, especially mining and burning of fossil fuels, can reach the groundwater, impacting the drinking water supply Heavy Metals and other toxins Metal/Toxin Source Removal Health Effect Water filtration Nervous system and kidney damage to Laws banning lead paint, import of toys fetuses and infants Replacement of old pipes Federal guidelines for building Filtration and reverse osmosis Skin, lung, kidney, bladder cancers Reduce use of coal Biomagnification—can damage CNS, esp. fetuses/children Coal scrubbers Lethal to many forms of life, food web Water treatment effects Destroy statues, bridges, roads, buildings Use organic methods Kill many non-target organisms Ban certain chemicals (DDT) Proper waste disposal Varying effects on food web Other compounds: _________________________ (rocket fuel), __________--polychlorinated biphenyls (plastics/electrical transformers), __________ (flame retardants) 9 http://www.cc.com/video-clips/13hiav/the-daily-show-with-trevor-noah-michigan-s-toxic-water-crisis http://www.cc.com/video-clips/hwvdyb/the-daily-show-with-trevor-noah-it-s-not-just-flint-s-water-crisis http://www.smithsonianmag.com/science-nature/chemical-study-ground-zero-house-flint-water-crisis-180962030/ Scientists Now Know Exactly How Lead Got Into Flint's Water –Smithsonian magazine What was the root cause of the crisis and what happened in 2014 that exacerbated it? What safety measures might have prevented the problem, but were not being followed by Flint? What has Flint done since 2014, and is it working for the long term? Is Flint the only place this contamination could be a problem? III. Endocrine Disruptors Objective: • Identify endocrine disruptors and describe the effects of endocrine disruptors on ecosystems. _______________________________________________ : Mimic hormones causing overstimulation, or bind to a receptor within a cell and block the real hormone, stopping