CORE-UA 202 Chapter Notes - Chapter 1: Ultraviolet, Inert Gas, Water Vapor
13 Sep 2016
School
Department
Course
Professor
Document Summary
Air is a mixture: mixture/ physical combo of pure substances o. Pure substance/ ie nitrogen oxygen ((argon co2 water vapor): nitrogen is 78%, oxygen is 21% of air. Inhaled air is not the same as exhaled air o o. Respiration turns the food we eat into co2 and h2o. The water in our bodies also evaporate: argon that is inhaled is exhaled bc its an inert gas, water vapor levels vary depending on location, climate, etc. 0001% or . 000001 is ppm or parts per million. Ppm is useful for measuring low concentrations like air pollutants. Carbon monoxide co has no color taste or smell. When inhaled, it interferes with our hemoglobin"s ability to carry oxygen. Ozone o3 is bad on the surface since it incapacitates our lungs. Sulfur dioxide so2 with moist tissue forms an acid on the lungs. Nitrogen dioxide no2 with moist tissue forms acid on the lungs. Comes from no, which comes from engines and power plants.
