RNR 1001 : RNR Test 2 Notes
Document Summary
Includes 71 pounds of dioxin: effect on environment, contamination of groundwater, contamination of drinking water, what do we do to control pollution, historical approaches have relied on output control (collection) and dilution. "end of pipe" solutions- end whatever is leaking or letting toxins out: bag filters and cyclone filters for coal fired power plants to reduce particulates. Speed of increase is exceptional- increases in atmospheric co2 from 280 to 380 ppm since 1850. Seven types of wetlands: tidal salt marshes, spartina spp. Freshwater marshes: throughout the us, shallow, dominated by emergent vegetations like cattails and rushes, huge losses to agriculture, northern peatlands, peat decomposes in northern biomes, partially decomposed plant material, highly leaches, acidic, nutrient deficient. Common in northern areas: thick peat layers in old lake basins. Loss of riparian wetlands has changed the way rivers and streams function: many riparian wetlands have been destroyed by levees, without lateral movement during storms, downstream flooding becomes much worse.
