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 | 0.018 | 0.056 | 0.000 | 0.000 | 0.021 | 0.067 | 0.005 | 0.016 | 0.002 | 0.007 | 0.046 | 0.145 |
2 | 0.017 | 0.053 | 0.000 | 0.000 | 0.011 | 0.033 | 0.007 | 0.021 | 0.002 | 0.005 | 0.036 | 0.112 | |
3 | 0.014 | 0.045 | 0.000 | 0.000 | 0.018 | 0.057 | 0.012 | 0.036 | 0.006 | 0.018 | 0.050 | 0.156 | |
4 | 0.032 | 0.101 | 0.000 | 0.000 | 0.027 | 0.086 | 0.072 | 0.226 | 0.002 | 0.007 | 0.133 | 0.420 | |
5 | 0.018 | 0.056 | 0.000 | 0.000 | 0.012 | 0.039 | 0.032 | 0.102 | 0.003 | 0.009 | 0.065 | 0.206 | |
6 | 0.030 | 0.094 | 0.000 | 0.000 | 0.018 | 0.057 | 0.043 | 0.137 | 0.003 | 0.011 | 0.095 | 0.298 | |
7 | 0.024 | 0.075 | 0.000 | 0.000 | 0.009 | 0.029 | 0.210 | 0.663 | 0.001 | 0.003 | 0.244 | 0.769 | |
South | 8 | 0.020 | 0.064 | 0.000 | 0.000 | 0.009 | 0.029 | 0.004 | 0.014 | 0.001 | 0.004 | 0.035 | 0.111 |
9 | 0.011 | 0.034 | 0.000 | 0.000 | 0.013 | 0.042 | 0.006 | 0.020 | 0.001 | 0.002 | 0.031 | 0.098 | |
10 | 0.024 | 0.075 | 0.000 | 0.000 | 0.012 | 0.039 | 0.046 | 0.143 | 0.002 | 0.006 | 0.084 | 0.264 | |
11 | 0.025 | 0.079 | 0.000 | 0.000 | 0.010 | 0.031 | 0.098 | 0.309 | 0.000 | 0.001 | 0.133 | 0.420 | |
12 | 0.021 | 0.068 | 0.000 | 0.000 | 0.008 | 0.025 | 0.098 | 0.310 | 0.002 | 0.007 | 0.130 | 0.409 | |
13 | 0.017 | 0.053 | 0.000 | 0.000 | 0.015 | 0.047 | 0.076 | 0.240 | 0.002 | 0.007 | 0.110 | 0.348 | |
14 | 0.021 | 0.068 | 0.000 | 0.000 | 0.010 | 0.032 | 0.122 | 0.383 | 0.001 | 0.002 | 0.154 | 0.484 | |
East | 15 | 0.012 | 0.038 | 0.000 | 0.000 | 0.008 | 0.027 | 0.008 | 0.026 | 0.001 | 0.002 | 0.029 | 0.091 |
16 | 0.023 | 0.071 | 0.000 | 0.000 | 0.013 | 0.041 | 0.133 | 0.419 | 0.000 | 0.001 | 0.169 | 0.533 | |
17 | 0.014 | 0.045 | 0.000 | 0.000 | 0.010 | 0.030 | 0.277 | 0.872 | 0.003 | 0.010 | 0.304 | 0.957 | |
18 | 0.033 | 0.105 | 0.000 | 0.000 | 0.016 | 0.050 | 0.006 | 0.018 | 0.003 | 0.010 | 0.058 | 0.183 | |
19 | 0.025 | 0.079 | 0.000 | 0.000 | 0.013 | 0.040 | 0.007 | 0.021 | 0.001 | 0.002 | 0.045 | 0.142 | |
20 | 0.018 | 0.056 | 0.000 | 0.000 | 0.014 | 0.045 | 0.007 | 0.022 | 0.001 | 0.003 | 0.040 | 0.127 | |
21 | 0.019 | 0.060 | 0.000 | 0.000 | 0.019 | 0.060 | 0.050 | 0.156 | 0.002 | 0.005 | 0.089 | 0.281 | |
West | 22 | 0.019 | 0.060 | 0.024 | 0.075 | 0.014 | 0.043 | 0.029 | 0.091 | 0.003 | 0.010 | 0.088 | 0.279 |
23 | 0.046 | 0.146 | 0.000 | 0.000 | 0.034 | 0.107 | 0.075 | 0.238 | 0.023 | 0.074 | 0.179 | 0.565 | |
24 | 0.021 | 0.068 | 0.000 | 0.000 | 0.008 | 0.025 | 0.089 | 0.282 | 0.001 | 0.002 | 0.119 | 0.376 | |
25 | 0.021 | 0.068 | 0.000 | 0.000 | 0.016 | 0.050 | 0.004 | 0.012 | 0.005 | 0.017 | 0.047 | 0.147 | |
26 | 0.027 | 0.086 | 0.000 | 0.000 | 0.014 | 0.043 | 0.014 | 0.044 | 0.005 | 0.017 | 0.060 | 0.190 | |
27 | 0.029 | 0.090 | 0.000 | 0.000 | 0.016 | 0.051 | 0.053 | 0.167 | 0.003 | 0.008 | 0.100 | 0.316 | |
28 | 0.024 | 0.075 | 0.000 | 0.000 | 0.019 | 0.060 | 0.066 | 0.209 | 0.004 | 0.014 | 0.113 | 0.357 | |
Center | 29 | 0.027 | 0.086 | 0.000 | 0.000 | 0.013 | 0.041 | 0.049 | 0.153 | 0.003 | 0.008 | 0.091 | 0.288 |
30 | 0.024 | 0.075 | 0.000 | 0.000 | 0.014 | 0.043 | 0.030 | 0.095 | 0.002 | 0.006 | 0.070 | 0.220 | |
31 | 0.017 | 0.053 | 0.000 | 0.000 | 0.014 | 0.045 | 0.019 | 0.060 | 0.003 | 0.009 | 0.053 | 0.166 | |
32 | 0.019 | 0.060 | 0.024 | 0.075 | 0.015 | 0.046 | 0.094 | 0.295 | 0.002 | 0.005 | 0.153 | 0.482 | |
33 | 0.015 | 0.049 | 0.000 | 0.000 | 0.011 | 0.036 | 0.017 | 0.054 | 0.003 | 0.009 | 0.047 | 0.148 | |
34 | 0.024 | 0.075 | 0.012 | 0.038 | 0.021 | 0.065 | 0.232 | 0.731 | 0.006 | 0.020 | 0.295 | 0.929 | |
35 | 0.017 | 0.053 | 0.000 | 0.000 | 0.016 | 0.051 | 0.005 | 0.015 | 0.002 | 0.007 | 0.040 | 0.125 | |
Mean | 0.022 | 0.069 | 0.002 | 0.005 | 0.015 | 0.046 | 0.060 | 0.189 | 0.003 | 0.009 | 0.101 | 0.318 | |
Standard deviation | 0.007 | 0.021 | 0.006 | 0.018 | 0.005 | 0.017 | 0.066 | 0.209 | 0.004 | 0.012 | 0.069 | 0.219 |