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Lecture 10

EESA09H3 Lecture Notes - Lecture 10: Persistent Organic Pollutant, Sug, Chlordane


Department
Environmental Science
Course Code
EESA09H3
Professor
Tanzina Mohsin
Lecture
10

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EESA09 10TH LEC.
Key pts major steps etc
Understand the key pts
Read lec. Notes
Specific and direction
Not assuming something
Science behind topic
Bonus mon 10:30-1pm
Sw 652
10% higher than midterm mark…
What are they
Artic pollutants
Artic Haze
Persistent Organic pollutants (POPS)
Artic Haze
His or aritic haze…
Mostly In spain..
Cooling of pollutants
Artic …ocean and surround waters coming from other pts of the world
Sulfate level 10-20 x larger..greater than normal
1972 glen shaw..sug long range transport as likely mechnaisum for source of
artic haze
stable atmosphere
temp inversion
stay there for ever-pollutants
circumpolar circulation
no weather variation stable
cycle but not som prominent
reduced visablity..
contamination
remediation
coal based emissions
solution easy to identify diff to implement
reduction of coal emissions esp in Eurasia
may be the onlu case where us not culprit
pops-toxic organic compunds w/ long lifespans that vecoe concentrated as
they move up through the food chain
pcbs-used in coolants
and lubricants in electrical equipment
production import ceased in 1977
still in use
links to skin conditions and live damange
realsed in great lakes-no bond w/ water
ddt-instectide in ww2
extremely hydrophobic and lipohillic
banned n us 1972
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