Experimental investigation on the variation of acute toxicity of common endocrine disruptors in soil irrigated with reclaimed water

• Published in: Guanʻgai paishui xuebao Vol. 44; no. 3; pp. 64 - 69
• Main Authors: HE Shunneng, HAN Yuguo, WU Wenyong, HU Yaqi, MA Meng, JIANG Tingting
• Format: Journal Article
• Language: Chinese
• Published: Science Press 01.03.2025
• Subjects: reclaimed water; vibrio fischeri; endocrine disruptors; acute toxicity
• ISSN: 1672-3317
• DOI: 10.13522/j.cnki.ggps.2024214

【Objective】Domestic wastewater contains a variety of pollutants, even after standard treatment, with endocrine disruptors being one of the most concerning. However, the biogeochemical transformation of these disruptors in soil following irrigation with reclaimed wastewater is not well understood. This study aims to investigate the changes in acute toxicity of common endocrine disruptors in soil irrigated with reclaimed water under different aerobic conditions.【Method】Bisphenol A (BPA) and nonylphenol (NP) were selected as representative endocrine disruptors in reclaimed wastewater. The changes in their acute toxicity in soil irrigated with reclaimed water under varying aerobic conditions were experimentally studied. Vibrio fischeri was used as the test organism. The concentrations of BPA and NP in the soil were based on estimated concentrations at different times following reclaimed water irrigation: 10 years (Y1), 50 years (Y2), 100 years (Y3), 500 years (Y4), and 1 000 years (Y5). The acute toxicity of the