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Table 15 Comparison of trace elements concentration with other regions

From: Estimation of pollution indices and hazard evaluation from trace elements concentration in coastal sediments of Kerala, Southwest Coast of India

Region Trace elements concentration (ppm) Reference
As Cd Cu Cr Mn Zn Ni Pb Ti Fe
Coastal Kerala 0.00006–0.171 0.00007–0.00027 0.0052–0.0334 0.03–0.57 0.12–4.2 0.09–3.39 0.0034–0.0357 0.0047–0.096 0.09–2.93 5.05–248.62 Present study
China 8–23 41–173 54–1040 27–74 2.10–2.95 Mei et al. (2011)
Iraq 0.87–2.35 10.35–30.52 36.45–120.11 136.05–312.11 14.96–130.25 39.98–103.98 8.02–32.69 928.7–3441.05 Salah et al. (2012)
Madurai 1.24–4.32 10.4–18.16 13.6–34.50 22.24–45.6 11.52–14.80 20.42–42.37 Sarala and Vidya (2013)
Malaysia 3.6–65.9 0.09–1.1 1.5–66.2 1.7–126.0 12.4–430 1.8–56.0 8.2–39.0 5160–43,200 Elias et al. (2018)
Jordan 7.51–17.22 7.51–50.21 23.85–124.23 113.30–325.22 225.57–1711.84 18.51–79.99 Odat (2013)
Jharkhand 0.2–0.7 21.6–93.2 17–67 353–993 78–188 27.4–98.3 17.1–38.4 23,947–50,691 Pandey et al. (2016)
Ghaziabad 0.11–1.1 4.05–67.6 3.6–111.7 41.6–677.5 20.6–282 12.8–165 5.6–69.6 10,865–24,873 Chabukdhara et al. (2016)
Iran 2.89–5.02 9.67–16.65 40–87.50 47–124.75 17.36–32.13 3.74–5.24 Vaezi et al. (2015)