title: Organochlorine pesticide residues in eggs and tissues of house sparrow, Passer domesticus, from Tamil Nadu, India.
abstract: This study provides information on the current status of contamination by organochlorine pesticides (OCPs) in eggs and tissues of House Sparrow, Passer domesticus, in Tamil Nadu, India. The mean concentration of total hexachlorocyclohexane (∑HCH) and total dichloro-diphenyl-trichloroethane (∑DDT) in eggs ranged from 0.01 to 1.81 μg/g and 0.02 to 1.29 μg/g, respectively. Concentration of 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (p,p'-DDE) ranged from below detectable limit (BDL) to 0.64 μg/g, representing more than 60% of the ∑DDTs. About 28% of samples had p,p'-DDE levels above the critical concentration associated with reproductive impairment.  However, the mean concentrations of cyclodiene insecticides were less than 0.5 μg/g. Although OCPs levels detected in tissues are not indicative of toxicity, continuous monitoring is recommended.
authors: Industrial Hygiene and Toxicology Division, Regional Occupational Health Centre, ICMR, Kannamangala PO, Bangalore, 562110, India. dhananjayan_v@yahoo.com
authors: V
authors: V
authors: Dhananjayan
authors: S
authors: S
authors: Muralidharan
authors: S
authors: S
authors: Ranapratap
mesh_terms: D000818:Animals; D003634:DDT / Q000032:analysis; D003633:Dichlorodiphenyl Dichloroethylene / Q000032:analysis; D004784:Environmental Monitoring / Q000379:methods*; D004785:Environmental Pollutants / Q000032:analysis; D001556:Hexachlorocyclohexane / Q000032:analysis; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D007194:India; D007306:Insecticides / Q000032:analysis; D010063:Ovum / Q000737:chemistry*; D010573:Pesticide Residues / Q000032:analysis*; D046370:Sparrows
chemical_list: D004785:Environmental Pollutants; D006843:Hydrocarbons, Chlorinated; D007306:Insecticides; D010573:Pesticide Residues; D003633:Dichlorodiphenyl Dichloroethylene; D001556:Hexachlorocyclohexane; D003634:DDT