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

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Fate of Mercury in the Arctic 84 Figure 18a Mercury accumulation rate for minerogenic peat from South Greenland. Accumulation rate as determined by the high-resolution bomb pulse dating (Goodsite et al., 2002, Appendix C) upper and lower limits depicted. Curve as submitted in Shotyk et al., 2003 (accepted), Appendix C Figure 18b Mercury accumulation rate from an ombrogenic peat profile from a raised bog in Denmark. Accumulation rate as determined by the high-resolution bomb pulse dating (Goodsite et al., 2002, Appendix C). Upper and lower limits depicted. Curve as submitted in Shotyk et al., 2003 (accepted), Appendix C.
Fate of Mercury in the Arctic 85 Figure 19. Mercury in a peat profile from Myrarnar bog, Faroe Islands, Shotyk, Goodsite et al., unpublished preliminary results (manuscript in preparation). Coloured markers are used for discussion and notational purposes while manuscript is being prepared. Atmospheric Hg accumulation rates on the Faroe Islands Peat on the Faroe Islands was very decomposed and compact, already at the surface. Therefore, high-resolution dating was not possible, making the profile much more difficult to interpret and compare with the Danish and S. Greenland core. The large amount of minerogenic material made it possible however to use the lead-210 constant rate of supply model. Figure 19. page 85, shows the peak of mercury concentration to be in the 1954 layer, within reason and error, at the same time as the maximum in S. Greenland and Denmark. There are also discrete mercury enrichments in the profile that may be associated with volcanic ash fall. Figure 20., page 86, shows the mercury accumulation rate.
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Submitted to Atmospheric Environmen
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1. Introduction Mercury in the atmo
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For all flux measurements, heating
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esponse switching valves supplied b
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3.1 RGM flux measurements The resul
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estimating for Alert an average spr
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References 1. Businger J.A. and Onc
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Table captions Table 1. RGM mass ra
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Figure 2. RGM pg m-3 350 300 250 20
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Table 2 DAYHOURMON avg.temp avg.WS
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Fate of Mercury in the Arctic Paper
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FIGURE 1. Schematic diagram of the
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mass flow controller to 10 L/min an
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FIGURE 3. Trends in Hg 0 (upper plo
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FIGURE 6. Trends in several Hg spec
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FIGURE 7. Spatial patterns in month
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(51) Ebinghaus, R.; Kock, H. H.; Te
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The fate of elemental mercury in Ar
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Ozone was measured with an UV absor
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demonstrating that BrO and ClO with
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In the model the removal of GEM lea
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15. Kemp, K. and Wåhlin, P. Applic
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GEM, ng/m 3 Fig 3. GEM against ozon
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Fig. 6 Comparison of measured surfa
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Introduction The perennial oxidatio
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Ariya et al. (11) have shown recent
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Table 1 lists the binding energies
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and a classical densities of states
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The third point demonstrated in Fig
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7. Lamborg, C. H.; Fitzgerald, W.;
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Figure 1. k rec / cm 3 molecule -1
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Asian Chemistry Letters vol. XX, No
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496 M E Goodsite et al. In the pres
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498 M E Goodsite et al. Figure 1 Th
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500 M E Goodsite et al. observed a
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502 M E Goodsite et al. Table 1 14C
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504 M E Goodsite et al. annual reso
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506 M E Goodsite et al. Table 2b Sa
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508 M E Goodsite et al. Going from
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510 M E Goodsite et al. dry mass. T
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512 M E Goodsite et al. Figure 4 Hg
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514 M E Goodsite et al. Koenig B, L
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130 F. Roos-Barraclough et al. / Th
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ABSTRACT Mercury concentrations are
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INTRODUCTION Atmospheric pollution
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and the relative importance of natu
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corresponding to the alkaline igneo
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edges cut off the slices were dried
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Age dating using 14 C Plant macrofo
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espectively (Naucke et al., 1993).
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200 was in the range 1 to 3 :g/m 2
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unpublished data for these paramete
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leachable fraction, and 32.1 µg/g
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indicator of the concentration of a
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caused by the introduction of gasol
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porewaters reveals the influence of
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For example, Hg may become adsorbed
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of the GL profile. Comparison with
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further improve our knowledge of pr
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which are derived from them. In con
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ACKNOWLEDGEMENTS We are grateful to
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Bindler, R. (2003) Estimating the n
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of Southern Denmark. Goodsite, M.E.
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MacKenzie AB, Farmer JG, Sugden CL.
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Schroeder, W.H. and Munthe, J. (199
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Table 1. AMS 14 C dating of plant m
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Table 3. Pb isotope data of leachat
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esidual fractions of the “B” co
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Depth (cm) Depth (cm) a b 0 -10 -20
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Hg accumulation rate (µg/m2/yr) 10
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Depth (cm) a Pb/Zr = UCC Depth (cm)
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Depth (cm) a Depth (cm) b 0 -10 -20
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Depth (cm) Depth (cm) a b 0 -10 -20
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Saturday, 28 December 2002 (Revised
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INTRODUCTION Recent research utiliz
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In addition, the coring system incl
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and testing prior to the Carey Isla
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ACKNOWLEDGEMENTS Development of thi
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Fig. 5. The stainless steel (AISI 3
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Fig. 2. 13
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Fig. 4. 15
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Fig. 6. 17
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FATE OF MERCURY IN THE ARCTIC Michael Evan ... - COGCI

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