EESA09H3 Lecture Notes - Lecture 9: Persistent Organic Pollutant, Arctic Haze, Heptachlor

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Long range transport of pollutants in the arctic: the two types of artic pollutants are , arctic haze and persistent organic. Itw as first discovered in the 1950s by aircraft pilots, and since the arctic was considered to be a pristine environment the discovery was quite surprising. When did the haze occur most frequently (season) ? it tended to occur most commonly in the spring. Long range transport was responsible for the appearance of pollutants in the arctic. Removal of the haze occurred via the arctic ocean or surrounding waters. Trace constituents such as metals and persistent organic pollutants (pops) can adhere to the aerosols and pool in the arctic. He stated that long range transport is a likely mechanism for the source of arctic haze to occur. This is accomplished through global circulation, as it carries pollutants from industrialized parts of the globe. There is a stable atmosphere in the arctic and a persistent temperature inversion in the winter.

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