EESD09H3 Lecture Notes - Lecture 9: Persistent Organic Pollutant, Arctic Haze, Arctic Ocean
11 Dec 2019
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Outline: long range transport of pollutants in the arctic, what are they, how did they get there, impacts, remediation, mechanism for the transportation of pollutants in the. Arctic pollutants: what are they, arctic haze, persistent organic pollutants (pops) 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. Coal burning the major culprit trace metals (vanadium, manganese) indicate sources. Trace constituents such as metals and persistent organic pollutants (pops) can adhere to the aerosols and pool in the arctic. 1972 glen shaw suggested long range transport as likely mechanism for source of arctic haze. Global circulation carries in pollutants from industrialized parts of the globe. Major source is eurasia coal burning plants located further north.
