Survey locations | Cu | Fe | Mn | Mo | Se | Zn |
---|---|---|---|---|---|---|
Baida Township (n = 1) | 0.189 | 0.370 | 0.041 | 1.252 | 0.354 | 0.665 |
Dalong Township (n = 5) | 0.256 ± 0.100 | 0.897 ± 0.222 | 0.040 ± 0.025 | 1.693 ± 1.636 | 0.198 ± 0.138 | 0.919 ± 0.701 |
Exi Township (n = 7) | 0.183 ± 0.172 | 0.706 ± 0.368 | 0.038 ± 0.017 | 0.088 ± 0.008 | 0.088 ± 0.067 | 0.614 ± 0.290 |
Kangsha Township (n = 14) | 0.200 ± 0.176 | 0.514 ± 0.744 | 0.091 ± 0.107 | 0.175 ± 0.164 | 0.085 ± 0.077 | 0.468 ± 0.246 |
Najiu Township (n = 20) | 0.128 ± 0.091 | 0.688 ± 0.647 | 0.034 ± 0.023 | 0.652 ± 0.628 | 0.035 ± 0.023 | 0.392 ± 0.196 |
Mali Township (n = 7) | 0.206 ± 0.100 | 0.384 ± 0.206 | 0.054 ± 0.024 | 0.432 ± 0.354 | 0.303 ± 0.130 | 0.932 ± 0.961 |
Shuodu Township (n = 5) | 2.672 ± 2.239 | 0.264 ± 0.139 | 1.370 ± 2.288 | 0.219 ± 0.286 | 0.074 ± 0.066 | 1.965 ± 2.135 |
Xinrong Township (n = 7) | 0.198 ± 0.146 | 0.963 ± 0.825 | 0.075 ± 0.071 | 0.105 ± 0.004 | 0.336 ± 0.295 | 0.850 ± 0.431 |
Yuxi Township (n = 5) | 0.141 ± 0.074 | 0.215 ± 0.088 | 0.058 ± 0.050 | 0.273 ± 0.070 | 0.308 ± 0.146 | 0.560 ± 0.501 |
Zhongyi Township (n = 6) | 0.747 ± 0.279 | 1.070 ± 0.287 | 0.452 ± 0.591 | 0.083 ± 0.078 | 0.149 ± 0.207 | 2.114 ± 2.780 |
Zituo Township (n = 12) | 0.270 ± 0.279 | 4.871 ± 8.230 | 0.075 ± 0.088 | 0.491 ± 0.658 | 0.066 ± 0.049 | 3.311 ± 4.777 |
Luolong County (n = 89) | 0.278 ± 0.264 | 0.766 ± 0.312 | 0.411 ± 0.526 | 0.119 ± 0.223 | 0.155 ± 0.180 | 0.804 ± 1.112 |
GB 5749–2022 | 1000 | 300 | 100 | 70 | 10 | 1000 |