Laboratory Evaluation of Pesticide Leaching from Sand-Based Constructed Root Zones Amended with Activated Carbon

• Published in: Agronomy journal 2010-11, Vol.102 (6), p.1622-1626
• Main Authors: Lee, Jeong Ho, Joo, Young K, Chun, Soul, Christians, Nick E
• Format: Article
• Language: English
• Subjects: absorption; Activated carbon; Agronomy. Soil science and plant productions; application rate; Biological and medical sciences; ethoprophos; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; lawns and turf; leachates; Leaching; losses from soil; Other nutrients. Amendments. Solid and liquid wastes. Sludges and slurries; peat; Pesticides; rhizosphere; sand; site preparation; soil profiles; Soil-plant relationships. Soil fertility. Fertilization. Amendments; tebuconazole; turf grasses
• ISSN: 0002-1962; 1435-0645; 1435-0645
• DOI: 10.2134/agronj2010.0026

Research was conducted to evaluate the installation of an activated carbon (AC) layer to reduce pesticide leaching from sand-base constructed root zones. Soil profile columns included unamended pure sand (PS), sand amended with 10% v/v peat moss (PM), sand overlying a 3-cm layer of AC (Ch-1), and sand overlying a 13-cm layer of sand mixed with the same amount of AC as that in the 3-cm layer (Ch-2). Soil profiles treatments included tebuconazole at 0.125 mg a.i. m−2, ethoprophos at 300 mg a.i. m−2 and ethoprophos at 1500 mg a.i. m−2 Total detected leachate from the PS was 52 and 80% of applied tebuconazole and ethoprophos, respectively. Both materials were detected at