. 2023 Sep 19;18:100313. doi: 10.1016/j.ese.2023.100313

Table 3.

Results for contaminants measured in sediment cores from Frobisher Bay, Nunavut, compared to previously reported values in Arctic sediments.

Contaminant class	Concentration in Frobisher Bay, NU	Summary of previously reported values	Reference
Elements	Cores 4, 8, 16: As 3.88–12.06 mg kg⁻¹ Cu 6.53–12.07 mg kg⁻¹ Pb 13.73–20.03 mg kg⁻¹ Zn 47.73–81.81 mg kg⁻¹	Baffin region, NU (1994) As 0.3–3.5 μg g⁻¹ Cu < 3.0–27 μg g⁻¹ Pb < 10 μg g⁻¹ Zn 8.1–103 μg g⁻¹ (marine) South of Koojesse Inlet, NU (1994) As 0.3 μg g⁻¹ Cu 15–27 μg g⁻¹ Pb < 10 μg g⁻¹ Zn 100–103 μg g⁻¹ (marine)	[8] [8]
THg	Cores 4, 8, 14, 15, 16: 4.37–62.37 ng g⁻¹ Core Bell_10: 11.34–30.62 ng g⁻¹ Core 12C: 33.76–68.74 ng g⁻¹	Frobisher Bay, NU (2019) 1.93 ± 0.45 ng g⁻¹ dw (THg, intertidal marine) Hudson Bay, Canada (2005) 8–58 ng g⁻¹ (Hg, marine) Baffin region, NU (1994) <0.2 μg g⁻¹ (inorganic Hg, marine) South of Koojesse Inlet, NU (1994) <0.2 μg g⁻¹ (inorganic Hg, marine)	[31] [58] [8] [8]
PAHs reported as a sum of 15 compounds	Cores 4, 8, 14, 15, 16: 4.38–304.20 ng g⁻¹ Core Bell_10: 2.86–74.79 ng g⁻¹ Core 12C: 2.41–18.94 ng g⁻¹	Canadian Arctic Archipelago (2016–2019) 7.8–247.7 ng g⁻¹ dw (16 US EPA priority PAHs, marine) 22.1–108.8 ng g⁻¹ dw (16 US EPA priority PAHs, terrestrial) Baffin region, NU (1994) 7.5–12 ng g⁻¹ (total LPAH, marine) 5.0–18 ng g⁻¹ (total HPAH, marine) Frobisher Bay, NU (1994) 7.5 ng g⁻¹ (total LPAH, marine) 16 ng g⁻¹ (total HPAH, marine)	[32] [8] [8]
PCBs reported as a sum of 161 individual orco-eluting congeners	Core 8: 10.1–47.0 ng g⁻¹ Core Bell_10: 0.07–0.32 ng g⁻¹ Core 12C: 0.18–0.67 ng g⁻¹	Hudson Bay, Canada (2005) 40–150 pg g⁻¹ dw (sum congeners, marine) Saglek Bay, Labrador (1997–1999) 0.24–62 000 ng g⁻¹ dw (55 congeners, marine) Baffin region, NU (1994) 0.023–3.3 ng g⁻¹ (47 congeners, marine) South of Koojesse Inlet, NU (1994) 3.30 ng g⁻¹ (47 congeners, marine) Cambridge Bay, NWT (1991–1993) 0.14–45 ng g⁻¹ dry (47 congeners, marine) Queen Maud Gulf and Wellington Bay, Victoria Island, NWT (1991–1993) 0.052–0.44 ng g⁻¹ dry (47 congeners, marine)	[50] [9] [8] [8] [66] [66]
PFASs reported as a sum of 18 compounds	Core 8: 0.06–1.32 ng g⁻¹ Core 12C: 0.116–1.00 ng g⁻¹ Core Bell_10: 0.06–1.32 ng g⁻¹	German Bight, German Baltic Sea, North Sea, the Skagerrak and Kattegat (2016–2017) 0.018–2.6 ng g⁻¹ dw (29 compounds, marine) Bering Sea and western Arctic, mainly Chukchi Sea (2014 and 2016) 0.06–1.73 ng g⁻¹ dw (9 compounds, marine) Lake Hazen, NU (2012) 0.006–0.161 ng g⁻¹ dw (13 compounds, terrestrial) Lake B35, NU (2009) 0.044–1.52 ng g⁻¹ dw (7 compounds, terrestrial)	[52] [53] [14] [14]