ENVIRSC 1C03 Lecture Notes - Lecture 3: Air Quality Index, Volatile Organic Compound, Sulfur Dioxide
19 Jan 2017
School
Department
Course
Professor
Document Summary
Relation between air quality and health impacts. Gray industrial smog fog and/or humid air plus sulfur dioxide and particulates from fossil fuel, particularly burning coal. Photochemical smog more recent; nitrogen oxides plus volatile organic compounds along with series of reactions induced by sunlight create brown photochemical smog seen over highways. Sources of pollution are nitric oxide (no), co2, and hydrocarbons (hc) The sources will react with one another, oxygen, or other molecules to create photochemical smog. Some of the photochemical smog includes nitric acid, pans, formaldehyde (or other aldehydes), and the ozone. We have cars to thank for that. There is ozone in the stratosphere which is supposed to be there because it has a function protect us from uv radiation. There is also an increase in concentration of ozone in the ground level this ozone is byproduct from the combustion of fossil fuels. Ozone in the ground level doesn"t protect from uv radiation and is corrosive bad for lungs.
