title: Occurrence of insecticide residues in selected crops and natural resources.
abstract: Pesticide residue monitoring was taken up at Kothapally and Enkepally villages of Ranga Reddy district, Andhra Pradesh in food crops (rice, maize, pigeonpea), vegetables (tomato and brinjal), cotton besides soil and water during 2008-2009 seasons. Of the 80 food crop and cotton samples, only two rice grain samples (3 %) showed beta endosulfan residues and two (3 %) out of 80 soil samples of food crops and cotton showed alpha and beta endosulfan residues. Out of 75 tomato samples, 26 (35 %) were contaminated and 4 % had residues above maximum residue limit (MRLs). Out of the 50 soil samples from tomato fields, 13 (26 %) contained residues. Among the 80 brinjal samples, 46 (56 %) contained residues and 4 % of samples had residues above MRLs. Only 13 % of the soil samples from brinjal fields were contaminated. Water samples found free from residues. In general the incidence of residues was below MRL in food crops.
authors.affiliation: International Crop Research Institute for Semi arid Tropics, Patancheru, Hyderabad, 502 324, Andhra Pradesh, India. ratnabhimineni@yahoo.com
authors.forename: B
authors.initials: B
authors.lastname: Ratna Kumari
authors.forename: G V
authors.initials: GV
authors.lastname: Ranga Rao
authors.forename: K L
authors.initials: KL
authors.lastname: Sahrawat
authors.forename: P
authors.initials: P
authors.lastname: Rajasekhar
mesh_terms: D018556:Crops, Agricultural / Q000737:chemistry*; D004784:Environmental Monitoring; D004787:Environmental Pollution / Q000706:statistics & numerical data; D005506:Food Contamination / Q000032:analysis / Q000706:statistics & numerical data; D007306:Insecticides / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*; D014675:Vegetables / Q000737:chemistry
chemical_list: D007306:Insecticides; D010573:Pesticide Residues; D012989:Soil Pollutants