| Donbas anthracite coalfield (Rostov Oblast) Russia | −0.06 ± 0.04 ‰ | −0.09 / −0.01 ‰ | 3 | coal (coal of unspecified rank) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Huainan-Huaibei coalfield China | 0.14 ± 0.06 ‰ | | 1 | Xieqiao I mine coal (high volatile B bituminous coal, Shanxi Formation, Permian) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Huainan-Huaibei coalfield China | 0.12 ± 0.04 ‰ | 0.1 / 0.15 ‰ | 2 | Kongji mine coal (high volatile C bituminous coal, Shanxi Formation, Permian) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Huainan-Huaibei coalfield China | 0.04 ± 0.05 ‰ | | 1 | Xinji III mine coal (subbituminous A coal to high volatile C bituminous coal, Shanxi Formation, Permian) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Huainan-Huaibei coalfield China | 0.09 ± 0.02 ‰ | | 1 | Panji III mine coal (subbituminous B coal, Shanxi Formation, Permian) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Huainan-Huaibei coalfield China | 0.11 ± 0.04 ‰ | | 1 | Xinzhuang mine coal (coal of unspecified rank, Shanxi Formation, Permian) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Ekibastuz coal Kazakhstan | −0.35 ± 0.61 ‰ | | 1 | coal (coal of unspecified rank) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Inta coal (Pechora Basin) Russia | −0.27 ± 0.08 ‰ | −0.33 / −0.21 ‰ | 2 | coal (subbituminous B coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Beryozovsky coal (Kansk-Achinsk Basin) Russia | −0.53 ± 0.03 ‰ | −0.56 / −0.51 ‰ | 3 | coal (coal of unspecified rank) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Jiafeng coal (Jincheng, Qinshui coalfield) China | 0.29 ± 0.05 ‰ | 0.24 / 0.33 ‰ | 3 | coal (subbituminous C coal to subbituminous B coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Kharanor coal (Chita Oblast) Russia | −0.22 ‰ | −0.22 / −0.22 ‰ | 2 | coal (coal of unspecified rank) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Suzhou coal (Jiangsu) China | −0.05 ± 0.06 ‰ | | 1 | coal (subbituminous B coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Yazitian coal (Guiyang Basin) China | 0 ± 0.04 ‰ | | 1 | coal (high volatile B bituminous coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Yima coal (Henan) China | −0.35 ± 0.01 ‰ | −0.36 / −0.34 ‰ | 3 | coal (high volatile B bituminous coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Zhachang coal (Guiyang Basin) China | 0.04 ± 0.08 ‰ | | 1 | coal (high volatile C bituminous coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Hebei coal (unspecified deposit) China | 0 ± 0.06 ‰ | | 1 | coal (high volatile C bituminous coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Big Dirty seam (Washington) United States | −0.35 ± 0.07 ‰ | | 1 | coal (subbituminous B coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Brookville seam (Pennsylvania) United States | −0.14 ± 0.03 ‰ | −0.17 / −0.12 ‰ | 3 | coal (medium volatile bituminous coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Colorado B B2 seam (Colorado) United States | −0.18 ± 0.01 ‰ | −0.19 / −0.18 ‰ | 2 | coal (high volatile B bituminous coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Fort Scott (Iron Post) seam (Oklahoma) United States | 0.04 ± 0.02 ‰ | 0.02 / 0.06 ‰ | 3 | coal (high volatile A bituminous coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| King Cannel seam (Utah) United States | −0.11 ± 0.01 ‰ | −0.13 / −0.1 ‰ | 4 | coal (subbituminous A coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Lower Philpot seam (Arkansas) United States | −0.1 ± 0.01 ‰ | −0.1 / −0.09 ‰ | 2 | coal (low volatile bituminous coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Lower Spadra seam (Arkansas) United States | 0.05 ± 0.04 ‰ | | 1 | coal (semianthracite) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| No 3 seam PSOC 1533 (Alaska) United States | −0.23 ± 0.01 ‰ | −0.23 / −0.22 ‰ | 2 | coal (lignite) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Pratt seam (Alabama) United States | −0.14 ± 0.02 ‰ | −0.16 / −0.12 ‰ | 3 | coal (medium volatile bituminous coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Unidentified weathered seam PSOC 159 (Colorado) United States | 0.03 ± 0.06 ‰ | −0.03 / 0.08 ‰ | 3 | coal (semianthracite) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Chelan forest (Rex Creek fire) United States | −0.19 ± 0.08 ‰ | | 1 | forest litter and O horizon | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Jackson forest (Wyoming) United States | 0.03 ± 0.04 ‰ | | 1 | forest litter and O horizon | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Hubbard Brook Experimental Forest United States | −0.36 ± 0.06 ‰ | −0.4 / −0.32 ‰ | 2 | forest litter and O horizon | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Darco lignite seam (Texas) United States | −0.11 ± 0.04 ‰ | −0.15 / −0.07 ‰ | 3 | coal (lignite) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Severny open pit (Ekibastuz Basin) Kazakhstan | −0.45 ± 0.02 ‰ | −0.46 / −0.43 ‰ | 2 | coal (lignite to subbituminous C coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Maikuben open pit Kazakhstan | −0.49 ± 0.06 ‰ | | 1 | coal (subbituminous A coal to high volatile C bituminous coal) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Maya Mountains organic soils Belize | −0.2 ± 0.04 ‰ | | 1 | surface organic soil | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Barrow peatlands (Utqiaġvik) United States | −0.15 ± 0.01 ‰ | −0.15 / −0.14 ‰ | 2 | freeze-dried surface peat (peat 1) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
| Barrow peatlands (Utqiaġvik) United States | −0.22 ± 0.02 ‰ | −0.24 / −0.21 ‰ | 3 | freeze-dried surface peat (peat 2) | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
