EARTHSS 23 Lecture 7: ESS23 Lecture 11 and 12
10 Mar 2017
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Document Summary
Ocean is cooler than sand because of specific heat, it takes more energy for the water to increase. At night, when there is no solar radiation, the water also cools off slower than the sand so it will be warmer than the sand. Indoor air pollutants: fuel combustion: for staying warm, kerosene heater, gas heater, gas stove, car exhaust from garage, fireplace. Radioactive decay emission: unstable atomic nucleus loses energy by emitting radiation (alpha, beta, gamma) that can damage cellular molecules including dna. Indoor workplace standards: set by occupational safety and health administration (osha: permissible exposure limits (pels)- set by niosh, time-weighted average threshold limit value (twa-tlv) International and interstate air pollution issues: climate forcers greenhouse gases , stratospheric ozone, acid rain, arctic pollution, mercury, persistent organic pollutants (pops, surface ozone. Rise of alkali factories: soda ash + animal fat = soap.
