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Table 6 Average fluxes, or in some cases the range of fluxes, for various ecosystems measured by a number of investigators

From: Mercury in the terrestrial environment: a review

Species/ecosystem

Fluxa

nmol m−2 month−1

References

Ground-level forest floor Sweden

1.4–1.7

Hanson et al. [82]

Lindberg et al. [68]

Model estimates hard wood forest

Max 4

Bash et al. [196]

Model estimates forest soil

4

Bash et al. [196]

Agricultural crops

Max 11

Bash et al. [196]

Temperate forest

5.0

Rea et al. [197]

Deforested site

50

Magarelli and Fostier [198]

Desert soils

3.6–9.8

Magarelli and Fostier [198]

High Hg regions

Max 1500

Gustin and Lindberg [199]

Maple

20

Hanson et al. [82]

Oak

16.4

Hanson et al. [82]

Spruce

6.1

Hanson et al. [82]

Prairie grass

12.5

Obrist et al. [53]

Typha sp.

60

Gustin et al. [200]

Average global soil

1.5

Selin et al. [201]

  1. aValues have all been converted to a common flux unit of nmol m−2 month−1. Results from the older literature are combined in estimates given in various review papers