Table 5.

Concentrations of trace elements in sediments from stormwater ponds, outlets and stormwater tunnels. Data is for stormwater ponds if not stated. Min–max values are presented or if not available mean ± standard deviation is used

Referen-ce	Ag	As	Ba	Cd	Co	Cr	Cu	Hg	Ni	Pb	Sb	V	Zn
This study N = 5	0.030–0.952	0.9–14.3	39–194	0.05–0.80	3.5–13.2	9.0–45.6	20.9–126.0	< 0.5	6.4–34.9	6.5–87.6	0.325–12.3	15.9–75.3	78.6–1190
Crane 2019 N = 15	0.99 ± 2.4	5.5 ± 2.3	147 ± 43	1.5 ± 0.57	8.2 ± 2.8	42.0 ± 14.7	31.6 ± 10.1	0.059 ± 0.022	23.3 ± 7.2	39.2 ± 25.5	< 1.2	45.3 ± 11.7	154.3 ± 79.7
Sun et al. 2019 N = 12	n.a	n.a	n.a	n.a	n.a	15–86	18–200	n.a	17–110	9.9–76	n.a	n.a	57–850
Blecken et al. 2017 N = 25	n.a	n.a	n.a	< 0.1–2.3	n.a	2–81	3–109	n.a	2–39	3–77	n.a	n.a	14–597
Sharley et al. 2017 N = 98	< 2–6	< 5–51	40–430	< 1–11	2–31	12–121	6–1090	< 0.1–2.9	4–159	9–456	< 5–17	14–130	12–4940
Ege–mose et al. 2015 N = 37	n.a	n.a	n.a	0.1–1.4	n.a	18–62	18–62	n.a	18–62	18–62	n.a	n.a	166–451
Frost et al. 2015	0.04–0.37	n.a	64.7–507.3	0.06–0.39	3.8–20.3	9.6–60.5	9.5–42.3	n.a	6.6–45.4	6.0–38.1	n.a	14.3–67.5	35.5–175.4
Blecken et al. 2012 N = 32	n.a	n.a	n.a	0.15–1.23	3.8–25.0	64–307	17–263	n.a	10–50	8–42	n.a	n.a	68–470
Istenič et al. 2012 N = 3	n.a	n.a	n.a	< 0.5	n.a	17–80	4–3293	n.a	10–42	< 2–220	n.a	n.a	26–1361
Jang et al. 2010 N = 22	< 0.8	0.6–24.8	8.1–1019	< 0.37 1st–5.3	n.a	5.8–174.5	4.5–90.4	< 0.02	5.4–40.4	5.6–196	n.a	n.a	5.4–711
Färm et al. 2003 N = 3	0.314–1.70	10.2–20.7	n.a	1.15–2.93	19.6–34.7	51.0–75.7	106–159	Kan finnas	32.0–50.5	61.4–98.2	n.a	73.2–106	609–974

n.a. not analysed, N the number of ponds studied

¹Wetlands

²Stormwater outlets

³Road residues from stormwater systems

⁴Sediment from stormwater tunnels