From 1940 through the 1970s, organochlorine compounds were widely used as insecticides in the United States. Thereafter, their use was severely restricted after recognition of their persistence in the environment, their toxicity in animals, and their potential for endocrine disruption. Although substantial evidence exists for the fetal toxicity of organochlorines in animals, information on huma...

The organochlorine pesticides (OP) are very stable molecules, due to this stability; they are very resistant in the environment and highly related to fat tissues with a wide diffusion property and an average time life higher then 10 years. We studied sediments (November 2001, April and June 2002) and organisms collected in April and July (2002) from the lacustric zone of Metzitlán, Hidalgo, Mex...

Abstract Animal feed is typically plant-based and can contain pesticide residues. Methods for testing food samples, such as the Quick Easy Cheap Effective Rugged Safe (QuEChERS) method or Swedish Ethyl Acetate (SweEt) method, successfully extract many However, nonpolar pesticides, organochlorine show poor recovery when extracted from lipid-rich samples. The previously developed water-acetonitri...

Introduction Organochlorine pesticides and PCB congeners are persistent organic compounds found in the environment. Because of their stability and tendency to accumulate in fat they can enter the food chain and therefore be found in cow milk. As these chemicals are banned in most countries, it is expected that the compounds can still be found in cow milk due to environmental contamination of th...

Multivariate methods were used to predict levels of dichlorodiphenyldichloroethene (DDE) and polychlorinated biphenyl (PCB) concentrations in plasma from characteristics that included age, diet, race, reproductive history, socioeconomic status, and reported body mass index (BMI) at several decades of life before blood collection. Measurements were available for organochlorine compound (organoch...

To assess the organochlorine contamination in the northeast coastal environment of Vietnam, a total of 41 surface sediments were collected from Ha Long Bay, Hai Phong Bay, and Ba Lat estuary, and analyzed for their organochlorine content. Organochlorine compounds (OCs) were widely distributed in the Vietnamese coastal environment. Among the OCs measured, DDT compounds predominated with concentr...

Polychlorobiphenyls (PCB’s) and dichlorodiphenyltrichloroethane (DDT) are persistent organic pollutants in the Great Lakes and other aquatic ecosystems. Currently in North America, human exposure to these compounds occurs primarily through the ingestion of contaminated fish, meat and dairy products. Many of these compounds have interacted with the estrogen receptor, but the interactions are com...