Stability and Presence of Pesticide Residue Sample Extracts of Soil and Vegetable: Eloor & Edayar Region, Kerala, Industrial Hub Nearer to Arabian Sea

Abstract

Eloor-Edayar, (latitude 9° 3´N and 10° 6´N and longitudes 76° 18´E and 76° 30´ and an area of 14.21km2) the landmass situated on the banks of River Periyar, is known as the industrial backbone of Kerala. The previous reports reveal this region is highly contaminated by heavy metal from industrial effluents. The present study focuses on pesticides in vegetables (Ladies finger, Papaya, Kachil- yam, Guava, Tapioca, Ginger) and related soil extracts when kept in cold conditions and their presence after a long period. The samples collected in May 2008 pre-monsoon, the environment when the soil and vegetables were free from volatile organic components, accelerates the adsorption of pesticides and high temperature. The samples shoot vegetable ladies finger, edible root vegetables Kachil-Yum, Tapioca and Ginger, fruits like Papaya and Guava and the sediments nearer land. The sample extracts analyzed in 2019 after keeping in the cold as well as the usual conditions. The Analysis report shows the pesticides present in the vegetables and soil are a, β, γ BHC Aldrin, Dicofol, a, β, Endosulfan, Dieldrin, OPDDT and PPDDT. Aldrin, Dicofol and BHC are the related forms in ladies Finger contains γ BHC, a, β, Endosulfan, Dieldrin, Aldrin, PPDDT. Ginger added a, β, γ BHC Aldrin, Dicofol, a, β, Endosulfan, OPDDT and PPDDT. Tapioca carried a, β, γ BHC, Dicofol and PPDDT. Kachil-Yum absorbed a, β, γ BHC Aldrin, Dicofol, a, β, Endosulfan, OPDDT and PPDDT. Papaya contains a and γ BHC. Guava captivated a, γ BHC Aldrin, Dicofol, a Dieldrin OPDDT and PPDDT.