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Table 7 Concentration of heavy metals in soil samples of Kannur district

From: Effect of urbanization on heavy metal contamination: a study on major townships of Kannur District in Kerala, India

Sample ID Sampling location Pb (ppm) As (ppm) Hg (ppm) Cd (ppm) Zn (ppm) Fe (ppm)
S1 New Mahe Beach 17.1 3.4 0.9 0.4 12.4 23,876.6
S2 Punnol Beach 11.2 0.8 0.7 0.4 2.1 18,954.8
S3 Thalassery Harbour 327.3 11.2 8.6 0.7 112.3 65,798.3
S4 Thalassery Market 647.3 17.8 11.7 6.4 189.3 86,574.5
S5 Co-operative Hospital, Thalassery 478.4 19.3 9.1 2.3 134.2 78,564.2
S6 Dharmadam Beach 45.3 1.8 1.6 0.8 14.3 13,897.3
S7 Edakkad Beach 8.4 0.7 0.7 0.5 1.5 16,457.1
S8 Aadi Kadalayi Beach 19.8 0.8 0.6 0.6 6.5 13,478.4
S9 Mapila Bay Harbour 234.7 13.2 1.1 1.3 75.6 58,724.2
S10 Kannur New Bus Stand 725.1 21.3 12.4 7.3 210.4 97,874.3
S11 Payyambalam Beach 16.3 0.9 0.7 0.4 7.5 14,657.1
S12 Valapattanam 456.5 4.5 6.4 1.4 124.3 42,664.2
S13 Azhikkal Port Jetty 513.8 16.8 8.7 4.6 98.4 84,235.3
S14 Azhikkal 478.3 14.3 6.5 4.3 112.4 65,427.6
S15 Pazhayangadi 98.3 1.2 1.1 0.8 12.3 24,983.3
S16 Chootad Beach 7.3 0.8 0.8 0.3 4.3 11,564.2
S17 Thaliparamba 398.9 14.8 7.3 1.9 126.7 65,124.5
S18 Kuppam Bridge 75.4 2.7 4.1 0.9 90.2 58,463.4
S19 Perumba 24.8 12.4 2.3 0.8 64.2 47,569.3
S20 Payyanur Rly Road 156.3 8.7 4.3 1.4 63.5 34,785.6
Minimum   7.3 0.7 0.6 0.3 1.5 11,564.2
Maximum   725.1 21.3 12.4 7.3 210.4 97,874.3
Mean   237.025 8.37 4.48 1.875 73.12 46,183.71
Standard Deviation   242.373 7.341 4.020 2.084 64.990 28,323.77