ISCI 1001 Lecture Notes - Lecture 21: Indoor Air Quality, Flatulence, Soot
23 Nov 2015
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Natural: forest fires (particulates, co2, co , volcanic eruptions (gases, ash , animal flatulence (enteric decomposition, ch4, methane, dust storms, natural smog smoky mountains. Human made: primary pollutants soot, co, secondary pollutants. Spark, fuel, o2, n2 -> no (nitric oxide) -> o2 -> no2 (nitrogen dioxide) -> h2o -> no. Spark, fuel, o2, n2 -> no (nitric oxide) -> o2 -> no2 (nitrogen dioxide) -> Spark, fuel, o2, n2 -> no (nitric oxide) -> o2 -> no2 (nitrogen dioxide) -> uv -> no. + o -> o2 -> o3 (ozone) -> vocs (volatile organic compounds) -> mix of chemicals. Trends & variations in earth"s climate: temperature, precipitation, storm frequency, storm intensity. 3 factors exert more influence on earth"s climate than all others combined: Atmosphere -> w/o atm -> 33 c colder on avg/lots of radiation. Atmosphere, clouds, land, ice, water: absorb ~ 70% of incoming solar radiation. About 30% of incoming solar radiation reflected by into space.
