Skip to main content

Table 10 Geo-accumulation index

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 − 4.15 − 2.52 0.585 − 0.17 − 3.523 − 1.568
S2 Punnol Beach − 4.427 − 4.607 0.222 − 0.17 − 6.084 − 1.901
S3 Thalassery Harbour − 1.354 − 0.8 3.841 0.637 − 0.344 − 0.106
S4 Thalassery Market − 0.766 − 0.132 4.285 3.83 0.41 0.29
S5 Co-operative Hospital, Thalassery − 1.062 − 0.015 3.923 2.354 − 0.087 0.15
S6 Dharmadam Beach − 1.963 − 3.437 1.415 0.83 − 3.317 − 2.349
S7 Edakkad Beach − 4.638 − 4.8 0 0.152 − 6.57 − 2.105
S8 Aadi Kadalayi Beach − 3.113 − 4.8 0 0.415 − 4.454 − 2.393
S9 Mapila Bay Harbour − 1.669 − 0.563 0.874 1.531 − 0.915 − 0.27
S10 Kannur New Bus Stand − 0.779 0.127 4.369 4.02 0.562 0.467
S11 Payyambalam Beach − 3.515 − 4.437 0.222 − 0.17 − 4.248 − 2.272
S12 Valapattanam − 0.249 − 2.115 3.415 1.637 − 0.197 − 0.731
S13 Azhikkal Port Jetty − 1.059 − 0.215 3.858 3.354 − 0.534 0.251
S14 Azhikkal − 0.798 − 0.447 3.437 3.256 − 0.342 − 0.114
S15 Pazhayangadi − 1.692 − 4.022 0.874 0.83 − 3.534 − 1.503
S16 Chootad Beach − 4.332 − 4.607 0.415 − 0.585 − 5.05 − 2.614
S17 Thaliparamba − 1.053 − 0.398 3.605 2.078 − 0.17 − 0.121
S18 Kuppam Bridge − 3.301 − 2.852 2.773 1.0 − 0.66 − 0.276
S19 Perumba − 4.608 − 0.653 1.939 0.83 − 1.15 − 0.574
S20 Payyanur Rly Road − 1.5 − 1.164 2.841 1.637 − 1.166 − 1.025
Minimum   − 4.638 − 4.8 0 − 0.585 − 6.57 − 2.614
Maximum   − 0.249 0.127 4.369 4.02 0.562 0.467
Mean   − 2.301 − 2.123 2.145 1.365 − 2.069 − 0.938
Standard deviation   1.525 1.895 1.632 1.397 2.282 1.048