Accumulation Pattern of Pesticides in Tropical Fresh Waters

✍ Scribed by Ravi Bhushan; Sangita Thapar; R. P. Mathur

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 236 KB
• Volume: 11
• Category: Article
• ISSN: 0269-3879
• DOI: 10.1002/(sici)1099-0801(199705)11:3<143::aid-bmc650>3.0.co;2-q

✦ Synopsis

High-performance liquid chromatography has been used to study the persistence of commonly used organophosphorus and carbamate pesticides -carbaryl, carbendazim, carbofuran, dimethoate, malathion and methyl parathion in river water in the presence of bottom sediment in laboratory aquaria. The fate of pesticides in water and sediment in pre-and post-monsoon water from three sources has been compared. It has been established that rapid degradation occurs once the pesticide leaches into sediment from water. Degradation was at a much faster rate in post-monsoon water and sediment. It was fould that pH and organic matter content affect rate of decay.