EESA09H3 Lecture Notes - Lecture 9: Persistent Organic Pollutant, Arctic Haze, Arctic Ocean
6 Mar 2020
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Document Summary
Industrial regions (mechanism - a detailed explanation, i. e. formation and etc) Long range transport of pollutants in the arctic. First noted in the 1950s by aircraft pilots. Sinks are likely the arctic ocean and surrounding waters. Sulfate levels 10 to 20 times larger, which is greater than normal (vanadium detected) Mixed with uncombusted carbon to form aerosol which blocks light and appears grayish or brownish in colour. Trace constituents such as metals and persistent organic pollutants (pops) can adhere to the aerosols and pool in the arctic. Sulfate is the main thing, some metals are also not good such as vanadium and manganese. 1972 - glen shaw suggested long range transport as likely mechanism for source of. Global circulation carries in pollutants from industrialized parts of the globe. Contamination of snow, ice and arctic waters. Solution is easy to identify but difficult to implement. Reduction of coal emissions, especially in eurasia.
