BIOL-2110 Chapter Notes - Chapter 9: Intellectual Disability, Cerebral Palsy, Donora, Pennsylvania
Document Summary
Soot = problem when burning fossil fuels at low temp. Arise from combustion of fuel in power station, car exhaust, industrial processes and waste disposal. Combination of incomplete combustion + fog + cool temperature. Wet precipitation of sulphuric acid + dry deposition of sulfur dioxide, nitric acid and nitrogen oxides. The water then runs into rivers and lakes. Acidity = death of organisms and tip balance of ecosystem. Reduce output of carbon monozide, nitrogen oxide, and hydrocarbons. 75% to 90% reduction of nox and co. Arise from car exhaust, batteries, industrial processes, minerals, and lead arsenate. Pesticide/ fertilizer that runs off of crops after rain. Aerobic bacteria eats them and use up oxygen in water. Anaerobic bacteria come and feed off the decaying matter. Ground water = significant source of arsenic poisoning. Chronic exposure = hyperpigmentation of skin, keratosis and cancer. Observe: change in fish in river in uk and us.
