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FATE OF MERCURY IN THE ARCTIC Michael Evan ... - COGCI

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ug Hg/m 2 /year<br />

20<br />

18<br />

16<br />

14<br />

12<br />

10<br />

8<br />

6<br />

4<br />

2<br />

0<br />

without depletion<br />

NOR BAR ALE THU SPI NUU FAE DEN<br />

TPM(Emitted)<br />

TPM(chemical)<br />

RGM<br />

ug Hg/m 2 /year<br />

20<br />

18<br />

16<br />

14<br />

12<br />

10<br />

8<br />

6<br />

4<br />

2<br />

0<br />

With depletion<br />

NOR BAR ALE THU SPI NUU FAE DEN<br />

TPM(Emitted)<br />

TPM(chemical)<br />

Fig. 7. Total deposition of Mercury in µg Hg/m 2 /year divided into deposition of Reactive Gaseous Mercury, chemically produced<br />

particulate mercury and directly emitted particulate mercury for two different model runs: without depletion (left) and with depletion<br />

(right), and for 8 different localities: Station Nord, Greenland (NOR), Barrow, Alaska (BAR), Alert, Canada (ALE), Thule (THU),<br />

Greenland, Spitzbergen, Norway (SPI), Nuuk area, Greenland (NUU), Faeroe Island (FAE) and Denmark (DEN)<br />

Fig. 8 The total annual average deposition of mercury without Arctic mercury depletion (left) and with (right) in µg Hg/m 2 /year<br />

for the years 1999 and 2000. The total annual deposition north of the polar circle is indicated as well.<br />

RGM<br />

15

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