Characteristics, Distribution, and Source Analysis of the Main Persistent Toxic Substances in Karst Groundwater at Jinan in North China

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Quality classification of organic index of fractured karst water</td><td class="align_center">Number of samples</td><td class="align_center">Percentage</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">I</td><td class="align_center">105</td><td class="align_center">70.47</td></tr><tr><td class="align_left">II</td><td class="align_center">21</td><td class="align_center">14.09</td></tr><tr><td class="align_left">III</td><td class="align_center">9</td><td class="align_center">6.04</td></tr><tr><td class="align_left">IV</td><td class="align_center">11</td><td class="align_center">7.38</td></tr><tr><td class="align_left">V</td><td class="align_center">3</td><td class="align_center">2.02</td></tr><tr><td class="align_left">Total</td><td class="align_center">149</td><td class="align_center">100</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Comprehensive quality evaluation of organic compounds of fractured karst water.</div>

Journal of Chemistry

tab6

Table 6

Table 6: Characteristics, Distribution, and Source Analysis of the Main Persistent Toxic Substances in Karst Groundwater at Jinan in North China 