Sites/stations | THQ of individual heavy metals (n = 140) | ∑THQ | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
As | Hg | Pb | Cr | Ni | HI | ||||||||
Adult | Child | Adult | Child | Adult | Child | Adult | Child | Adult | Child | Adult | Child | ||
North | 1 | 0.004 | 0.019 | 0.000 | 0.000 | 0.011 | 0.055 | 0.004 | 0.194 | 0.011 | 0.053 | 0.030 | 0.321 |
2 | 0.004 | 0.018 | 0.000 | 0.000 | 0.006 | 0.028 | 0.005 | 0.026 | 0.008 | 0.039 | 0.023 | 0.111 | |
3 | 0.003 | 0.015 | 0.000 | 0.000 | 0.010 | 0.047 | 0.009 | 0.045 | 0.029 | 0.140 | 0.050 | 0.247 | |
4 | 0.007 | 0.034 | 0.000 | 0.000 | 0.014 | 0.071 | 0.057 | 0.281 | 0.011 | 0.054 | 0.090 | 0.440 | |
5 | 0.004 | 0.019 | 0.000 | 0.000 | 0.007 | 0.032 | 0.026 | 0.127 | 0.014 | 0.068 | 0.050 | 0.246 | |
6 | 0.006 | 0.031 | 0.000 | 0.000 | 0.010 | 0.047 | 0.035 | 0.170 | 0.017 | 0.082 | 0.067 | 0.331 | |
7 | 0.005 | 0.025 | 0.000 | 0.000 | 0.005 | 0.024 | 0.168 | 0.825 | 0.004 | 0.020 | 0.182 | 0.894 | |
South | 8 | 0.004 | 0.021 | 0.000 | 0.000 | 0.005 | 0.024 | 0.003 | 0.017 | 0.007 | 0.035 | 0.020 | 0.097 |
9 | 0.002 | 0.011 | 0.000 | 0.000 | 0.007 | 0.035 | 0.005 | 0.025 | 0.004 | 0.017 | 0.018 | 0.088 | |
10 | 0.005 | 0.025 | 0.000 | 0.000 | 0.007 | 0.032 | 0.036 | 0.179 | 0.010 | 0.048 | 0.058 | 0.284 | |
11 | 0.005 | 0.026 | 0.000 | 0.000 | 0.005 | 0.026 | 0.078 | 0.385 | 0.002 | 0.008 | 0.091 | 0.445 | |
12 | 0.005 | 0.023 | 0.000 | 0.000 | 0.004 | 0.021 | 0.079 | 0.386 | 0.011 | 0.056 | 0.099 | 0.484 | |
13 | 0.004 | 0.018 | 0.000 | 0.000 | 0.008 | 0.039 | 0.061 | 0.299 | 0.012 | 0.057 | 0.084 | 0.413 | |
14 | 0.005 | 0.023 | 0.000 | 0.000 | 0.005 | 0.026 | 0.097 | 0.476 | 0.003 | 0.016 | 0.110 | 0.541 | |
East | 15 | 0.003 | 0.013 | 0.000 | 0.000 | 0.004 | 0.022 | 0.006 | 0.032 | 0.002 | 0.012 | 0.016 | 0.078 |
16 | 0.005 | 0.024 | 0.000 | 0.000 | 0.007 | 0.034 | 0.106 | 0.521 | 0.002 | 0.010 | 0.120 | 0.589 | |
17 | 0.003 | 0.015 | 0.000 | 0.000 | 0.005 | 0.025 | 0.221 | 1.085 | 0.015 | 0.075 | 0.244 | 1.200 | |
18 | 0.007 | 0.035 | 0.000 | 0.000 | 0.008 | 0.042 | 0.004 | 0.022 | 0.016 | 0.079 | 0.036 | 0.178 | |
19 | 0.005 | 0.026 | 0.000 | 0.000 | 0.007 | 0.033 | 0.005 | 0.026 | 0.003 | 0.015 | 0.021 | 0.101 | |
20 | 0.004 | 0.019 | 0.000 | 0.000 | 0.008 | 0.037 | 0.006 | 0.028 | 0.005 | 0.025 | 0.022 | 0.109 | |
21 | 0.004 | 0.020 | 0.000 | 0.000 | 0.010 | 0.050 | 0.040 | 0.194 | 0.008 | 0.038 | 0.061 | 0.302 | |
West | 22 | 0.004 | 0.020 | 0.005 | 0.023 | 0.007 | 0.036 | 0.023 | 0.113 | 0.015 | 0.075 | 0.054 | 0.267 |
23 | 0.010 | 0.049 | 0.000 | 0.000 | 0.018 | 0.089 | 0.060 | 0.296 | 0.117 | 0.575 | 0.205 | 1.008 | |
24 | 0.005 | 0.023 | 0.000 | 0.000 | 0.004 | 0.021 | 0.071 | 0.350 | 0.004 | 0.018 | 0.084 | 0.411 | |
25 | 0.005 | 0.023 | 0.000 | 0.000 | 0.008 | 0.042 | 0.003 | 0.015 | 0.027 | 0.133 | 0.043 | 0.212 | |
26 | 0.006 | 0.029 | 0.000 | 0.000 | 0.007 | 0.035 | 0.011 | 0.055 | 0.026 | 0.130 | 0.051 | 0.249 | |
27 | 0.006 | 0.030 | 0.000 | 0.000 | 0.009 | 0.043 | 0.042 | 0.208 | 0.013 | 0.061 | 0.070 | 0.342 | |
28 | 0.005 | 0.025 | 0.000 | 0.000 | 0.010 | 0.050 | 0.053 | 0.259 | 0.022 | 0.108 | 0.090 | 0.442 | |
Center | 29 | 0.006 | 0.029 | 0.000 | 0.000 | 0.007 | 0.034 | 0.039 | 0.190 | 0.013 | 0.065 | 0.065 | 0.318 |
30 | 0.005 | 0.025 | 0.000 | 0.000 | 0.007 | 0.036 | 0.024 | 0.118 | 0.010 | 0.050 | 0.047 | 0.229 | |
31 | 0.004 | 0.018 | 0.000 | 0.000 | 0.008 | 0.037 | 0.015 | 0.074 | 0.013 | 0.066 | 0.040 | 0.195 | |
32 | 0.004 | 0.020 | 0.005 | 0.023 | 0.008 | 0.038 | 0.075 | 0.368 | 0.008 | 0.042 | 0.100 | 0.491 | |
33 | 0.003 | 0.016 | 0.000 | 0.000 | 0.006 | 0.030 | 0.014 | 0.067 | 0.014 | 0.070 | 0.037 | 0.183 | |
34 | 0.005 | 0.025 | 0.002 | 0.012 | 0.011 | 0.054 | 0.185 | 0.910 | 0.032 | 0.159 | 0.236 | 1.159 | |
35 | 0.004 | 0.018 | 0.000 | 0.000 | 0.009 | 0.042 | 0.004 | 0.019 | 0.011 | 0.052 | 0.027 | 0.131 | |
Mean | 0.005 | 0.023 | 0.000 | 0.002 | 0.008 | 0.038 | 0.048 | 0.240 | 0.015 | 0.073 | 0.075 | 0.375 | |
Standard deviation | 0.001 | 0.007 | 0.001 | 0.006 | 0.003 | 0.014 | 0.053 | 0.258 | 0.019 | 0.094 | 0.059 | 0.285 |