HSS 1101 Lecture Notes - Lecture 16: Sulfur Dioxide, Cool Air, Particulates

• School: University of Ottawa
• Department: Health Sciences
• Course: HSS 1101
• Professor: Tien Nguyen

Document Summary

Chapter 14: choosing healthy living for the environment. 4 million deaths annually (children under 5) World wide population predicted 9. 2 billion (2050) Temperature inversion: cool air trapped under warm air. Results: difficulty breathing, burning eyes, headaches, nausea. Protective membrane like layer in the earth"s stratosphere. Co2, cfcs, ground level ozone, no, methane. Non point source: seep into waterways (runoff) Pesticides: kill insects, rodents, plants and fungi. Loud noises: source of mental and physical distress. Short term exposure reduces: productivity, concentration and attention span. Symptoms of noise distress: sleep disturbance, headaches and negative health. Prevent hearing loss: music at reasonable levels, earplugs and physical barriers. Reduce, reuse, and recycle - 90% of garbage reused and recycled. Sources: household appliances and electrical power lines. Less than 1% of total radiation exposure. Proponents : it is safe and efficient. Food: 80-95% of most persistent toxic contaminants.