Phytoremediation of Tetracycline and Degradation Products from Aqueous Solutions

Abstract

The present study aims at phytoremediation of <em>Lemna gibba</em> L. in aqueous solutions with different concentrations of TC and Degradation Products (DPs). It also tries to determine whether there are differences in TC, ETC, EATC, and ATC levels, accumulated by <em>Lemna gibba</em> L. Exposure concentrations of 50, 100, and 300 ppb have been selected for TC and DPs, showing that the highest TC50, TC100, and TC300 concentrations in the plant have been 23.5<span style="text-decoration: underline;">+</span>1.1, 80.1<span style="text-decoration: underline;">+</span>3.9, and 274<span style="text-decoration: underline;">+</span>13 ppb, respectively, while the highest ETC50, ETC100, and ETC300 have proven to be 39.5<span style="text-decoration: underline;">+</span>1.9, 47.8<span style="text-decoration: underline;">+</span>2.4, and 168<span style="text-decoration: underline;">+</span>8.4 ppb, respectively. The highest EATC50, EATC100, and EATC300 concentrations in the plant have been 45.3<span style="text-decoration: underline;">+</span>2.3; 65<span style="text-decoration: underline;">+</span>3.0 and 173<span style="text-decoration: underline;">+</span>9.0 ppb, respectively, whereas the highest ATC50, ATC100, and ATC300 concentrations in <em>Lemna gibba</em> L. have been 34.7<span style="text-decoration: underline;">+</span>1.7, 39.6<span style="text-decoration: underline;">+</span>0.2, and 114<span style="text-decoration: underline;">+</span>5.6 ppb, respectively. TC, ETC, EATC, and ATC concentrations in <em>Lemna gibba</em> L. have increased with the increase of initial TC, ETC, EATC, and ATC concentration.