EESA10H3 Chapter Notes -Neural Development, Organophosphate, Relative Humidity
26 Oct 2012
School
Department
Course
Professor
Document Summary
Outdoor pollution: 6 common air pollutants, regulated by us act (clean air act of usa). We will also discuss a couple of more pollutants that are not regulated in us but still represent hazard to human health: ozone. Source:-photochemical reaction: voc + nox +heat + sunlight . Formed in stratosphere (good) or ground level (bad) Mechanism/toxicity: -concentrations increase with temperature and amount of sunlight (location, season, and time of day) Effects:-damages air ways deep in lungs, causing shortness of breath, coughing and nausea. Irritate and damages the sinus (eyes, nose, throat) Protection/prevention: -deeper breathing from exercising worsens the effects: particulate matter (pm): tiny air particles (dust, soot, smoke, aerosol) Source: vehicles, factories, construction, tilled fields, demolition, stone crashing, combustion, or formed in the air. Mechanism/toxicity: -pm 2. 5 and smaller travel deep into the lungs. Pm larger then 2. 5 stay in the nose and throat.
