79 results match your criteria pp'-ddt


Impact of organochlorine pollutants on semen parameters of infertile men in Pakistan.

Environ Res 2021 04 5;195:110832. Epub 2021 Feb 5.

Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, 71003, Heraklion, Greece. Electronic address:

Male infertility is a major problem with important socioeconomic consequences. It is associated with several pathological factors, including but not limited to endocrine disruption as a result of environmental pollution and the alarming decline in sperm count over the decades is indicative of involvement of many environmental and lifestyle changes around the globe. Organochlorine pollutants such as dichlorodiphenyltrichlorethanes (DDTs), polychlorinated biphenyls (PCBs) and hexachlorobenzene (HCB) disrupt male reproductive system but the exact effect of environmental exposure on semen parameters in human is still not clear. Read More

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Does trophic level drive organic and metallic contamination in coral reef organisms?

Sci Total Environ 2019 Jun 21;667:208-221. Epub 2019 Feb 21.

Université de la Nouvelle-Calédonie, Institut de Sciences Exactes et Appliquées, EA 7484, LabEx "CORAIL", BP R4, 98851 Nouméa Cedex, New Caledonia. Electronic address:

Metallic and organic pollutants constitute a serious threat for coral reef ecosystems, potentially affecting a great number of species interacting within complex trophodynamic processes. Pesticides, PCBs and trace elements were measured on coral reef communities of three Pacific islands (Moorea, Wallis and New Caledonia) in relation with δN values, a proxy of trophic level. Several potential sources of organic matter, benthic invertebrates and fish belonging to various trophic strategies were sampled at each island. Read More

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Consumer health risk to pesticide residues in Salvia officinalis L. and its infusions.

J Environ Sci Health B 2019 1;54(1):14-19. Epub 2019 Mar 1.

a Department of Analytical Chemistry, Faculty of Biotechnology , University of Rzeszow , Rzeszów , Poland.

Salvia officinalis L. is a popular herb widely used in culinary, cosmetic, and medicinal preparations, and also as an ornamental plant. Sage crops are threatened by many diseases, such as gray mold, powdery mildew, and leaf spot, by weeds, and by pests, such as aphids. Read More

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An unnoticed issue: Organochlorine pesticides in tobacco products around the world.

Chemosphere 2019 Mar 3;219:54-57. Epub 2018 Dec 3.

Department of Theoretical and Applied Sciences, University of Insubria, Via Valleggio 11, 22100 Como, Italy.

In this work we assessed the presence of two well-known pesticides (DDT and lindane) along with their main metabolite or isomer in tobacco products from 11 countries. In 11 of the 14 samples DDTs were the dominant compounds, with maximum concentrations of pp'-DDT in Morocco cigarettes (9 ng g) and of pp'-DDE in Italian cigars (13 ng g). Moreover, the α/γ-HCH ratio was mostly lower than 1, indicating the main use of "Lindane" formulation. Read More

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Levels of organochlorine pesticides in Amazon turtle (Podocnemis unifilis) in the Xingu River, Brazil.

J Environ Sci Health B 2018 10;53(12):810-816. Epub 2018 Sep 10.

d Núcleo de Altos Estudos Amazônicos , Universidade Federal do Pará , Belém , Brazil.

Due to the toxicity and high environmental persistence of organochlorine pesticides in aquatic organisms, turtles have been studied as environment biomonitors. These animals are important sources of protein for the riverside and indigenous peoples of the Brazilian amazon. In the present study, organochlorine pesticide contamination was investigated in Podocnemis unifilis. Read More

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Assessment of DDT and Metabolites in Soil and Sediment of Potentially Contaminated Areas of Belém, Amazon Region, Brazil.

Bull Environ Contam Toxicol 2017 Jul 22;99(1):125-130. Epub 2017 Apr 22.

Environmental Section, Evandro Chagas Institute, Rodovia BR 316 Km 07, Ananindeua, Pará, Brazil.

The aim of this study was to evaluate the distribution of DDT and metabolites in surface soils and soil profiles from two areas containing deposits of obsolete pesticides in Belém, Amazon Region, Brazil. DDT and metabolites were extracted by microwave assisted extraction and analyzed by gas chromatography with electron capture detection. Concentrations of total DDT in surface soil samples ranged from 64. Read More

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DDT concentration in fish from the Tapajós River in the Amazon region, Brazil.

Chemosphere 2016 Jun 28;153:340-5. Epub 2016 Mar 28.

Universidade Federal do Pará, Faculdade de Química, P.O. Box 479, 67075-110, Belém, PA, Brazil.

DDT and metabolites were measured in six species of fish collected from the Tapajós River in the village of Barreiras, near the town of Itaituba in the Brazilian Amazon region. The selected fish were the most consumed and economically important to the local people. DDT was used frequently in this region for malaria control. Read More

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Persistent organochlorine pesticides in internal organs of coypu, Myocastor coypus.

J Environ Sci Health B 2015 ;50(8):590-4

a Department of Small Mammals Breeding and Animal Origin Materials, Faculty of Animal Breeding and Biology, Poznań University of Life Sciences , Poznań , Poland.

A highly selective and sensitive method based on gas chromatography-tandem mass spectrometry (GC-MS/MS) to identify and quantify persistent organochlorine pesticides, (18 compounds including primary compounds and metabolites), in animal internal organs (kidneys, liver, and brain) has been developed. Tandem mass spectrometric conditions were individually optimized for each target compound in Multiple Reaction Monitoring (MRM) mode to obtain maximum sensitivity. Prior to instrumental analysis, a sample preparation method based on matrix solid phase dispersion (MSPD) followed by acidic digestion with sulfuric acid to reduce matrix co-extractives was employed. Read More

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Assessment of the concentrations of polycyclic aromatic hydrocarbons and organochlorine pesticides in soils from the Sarno River basin, Italy, and ecotoxicological survey by Daphnia magna.

Environ Monit Assess 2015 Feb 1;187(2):52. Epub 2015 Feb 1.

Dipartimento di Scienze della Terra, dell'Ambiente e delle Risorse, Università degli Studi di Napoli "Federico II", Via Mezzocannone 10, 80138, Naples, Italy,

We studied the contamination level of the soils of the Sarno River basin in southwestern Italy by combined acute toxicity test with Dapnia magna and chemical extraction of polycyclic aromatic hydrocarbons (PAHs) and organochlorine pesticides (OCPs). For the ecotoxicological assessment, 188 samples were taken and coincided with those of a previous study (2013) where heavy metals were surveyed. For the organics assessment, 21 samples were selected nearby representative areas of elevated anthropic pressure. Read More

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February 2015

Organochlorine pesticide level differences among female inhabitants from Veracruz, Puebla and Tabasco, Mexico.

Bull Environ Contam Toxicol 2014 Aug 15;93(2):233-7. Epub 2014 Jun 15.

Institute of Forensic Medicine, University of Veracruz, SS Juan Pablo II s/n, 94290, Boca del Rio, Vercaruz, Mexico,

Organochlorine pesticides have been used in Mexico in malaria control programs and against ectoparasites. The objective of this study was to compare the levels of organochlorine pesticides: HCB, α-β-γ-HCH, pp'-DDE, op'-DDT and pp'-DDT in adipose tissue of female inhabitants from three Mexican states: Veracruz, Puebla and Tabasco. Data analyses indicated higher β-HCH levels in Puebla inhabitants. Read More

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Pesticide residues in sediments and aquatic species in Lake Nokoué and Cotonou Lagoon in the Republic of Bénin.

Environ Monit Assess 2014 Jan 14;186(1):77-86. Epub 2013 Aug 14.

Ecole Polytechnique d'Abomey-Calavi, Département de Génie de l'Environnement, Laboratoire de recherche en Biologie appliquée (LARBA), Université d'Abomey-Calavi, 01 BP 2009, Cotonou, Benin,

Lake Nokoué and Cotonou Lagoon are the most important and most productive continental freshwaters in Bénin, with an estimated fish production of over 2 tonnes per hectare in Lake Nokoué. Organochlorine pesticides are used in agriculture and to repel tsetse flies, malaria mosquitoes and other diseases raised. Sediment, fish, shrimp and oyster species were collected in Lake Nokoué and Cotonou Lagoon for pesticide residues analysis. Read More

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January 2014

Organochlorine pesticide levels and risk of Parkinson's disease in north Indian population.

ISRN Neurol 2013 8;2013:371034. Epub 2013 Jul 8.

Department of Neurochemistry, Institute of Human Behaviour and Allied Sciences, Dilshad Garden, Delhi 110095, India.

The cause of Parkinson's disease (PD) remains elusive, but environmental chemical exposures have been postulated to be involved in the etiology of PD. We examined the association between the persistent organochlorine pesticides (OCPs) and PD in the North Indian population. This case control study included 70 PD and 75 control subjects in the age group of 50 to 85 years. Read More

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Mercury and Chlorinated Pesticides on the Highest Level of the Food Web as Exemplified by Herring from the Southern Baltic and African Penguins from the Zoo.

Water Air Soil Pollut 2013 May 19;224(5):1549. Epub 2013 Apr 19.

Department of Marine Chemistry and Environmental Protection, Faculty of Oceanography and Geography, University of Gdańsk, Al. Pilsudskiego 46, 81-387 Gdynia, Poland.

Aquatic birds are often used as a health indicator of the marine ecosystem. African penguins living in the zoo make good research material as they form a link between the marine and the terrestrial ecosystem in terms of xenobiotic circulation. Tests were performed on whole herring-the food of the penguins-as well as on bird muscle, liver, brain, eggs, feathers and guano in order to determine total mercury, aldrin, dieldrin, endrin, isodrin, endosulfan isomers, endosulfan sulfate, methoxychlor, dichlorodiphenyltrichloroethane (DDT) and its metabolites. Read More

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The organochlorine pesticides residue levels in karun river water.

Jundishapur J Nat Pharm Prod 2013 13;8(1):41-6. Epub 2013 Feb 13.

Food and Drug Laboratory Research Center, Ministry of health, Tehran, IR Iran.

Background: The organochlorine pesticides (OCPs) are among the most commonly used in water streams around the world. Most of these contaminants are highly hydrophobic and persist in sediments of rivers and lakes. Studies have suggested that OCPs may affect the normal function of the human and wildlife endocrine systems. Read More

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Organochlorine pesticides in green mussel, Perna viridis, from the Cienfuegos Bay, Cuba.

Bull Environ Contam Toxicol 2012 Nov 21;89(5):995-9. Epub 2012 Sep 21.

Centro de Estudios Ambientales de Cienfuegos, Ciudad Nuclear, 59350 Cienfuegos, Cuba.

The green mussel, Perna viridis, was used to measure bioaccumulated levels of organochlorine pesticides in the marine environment of Cuba. Samples were collected in the Cienfuegos Bay between January and December 2010. The organochlorine pesticides (i. Read More

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November 2012

Organochlorine pesticide levels and risk of Alzheimer's disease in north Indian population.

Hum Exp Toxicol 2013 Jan 16;32(1):24-30. Epub 2012 Aug 16.

Department of Neurochemistry, Institute of Human Behaviour and Allied Sciences, Dilshad Garden, Delhi, India.

Alzheimer's disease (AD) could result from a multifactorial process involving both genetic predisposition and exposure to environmental factors like pesticides. A case control study of 70 patients of AD and 75 controls was done to examine the association between organochlorine pesticides (OCPs) and risk of AD. OCPs (hexachlorocyclohexane (HCH), aldrin, dieldrin, endosulfan, pp'-dichlorodiphenyldichloroethylene (pp'-DDE), op'-DDE, pp'-dichlorodiphenyltrichloroethane (pp'-DDT), op'-DDT, pp'-dichlorodiphenyldichloroethane (pp'-DDD) and op'-DDD) were extracted from blood and quantitatively estimated using gas chromatography. Read More

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January 2013

Persistent organic pollutants in sediment from the southern Baltic: risk assessment.

J Environ Monit 2012 Aug 29;14(8):2100-7. Epub 2012 Jun 29.

National Marine Fisheries Research Institute, Department of Food and Environmental Chemistry, 1 Kołłataja Str., 81-332 Gdynia, Poland.

The concentrations of organochlorine pesticides, PCBs, and PCDD/Fs were measured in sediment samples collected from the Gulf of Gdańsk, the Gdańsk Deep, the Vistula Lagoon and the off-shore waters in the southern Baltic Sea. The determinations were conducted in the fraction <63 μm. The highest levels of pollutants were found in sediments from the Gulf of Gdańsk and the Gdańsk Deep. Read More

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Comparison of two sample preparation methods for analysis of organochlorine pesticides residues in fish muscle.

J Environ Sci Health B 2011 ;46(2):191-7

Department of Toxicology, West Pomeranian University of Technology, Szczecin, Poland.

The aim of this study was to compare recoveries of organochlorine pesticides (heptachlor, α-HCH, β-HCH, γ-HCH, op'-DDD, pp'-DDD, pp'-DDE, op'-DDT, pp'-DDT) from fish muscle dried by two alternative methods: (i) grinding with anhydrous sodium sulphate and (ii) freeze drying. Pesticide residues content was determined by gas chromatography-mass spectrometry (GS-MS) method. For four pesticides (γ-HCH, α-HCH, heptachlor and pp;-DDD) in four of five fish species, higher recoveries were obtained from the freeze-dried samples. Read More

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The health risk assessment of organochlorine pesticides in smoked fish products available in Szczecin, Poland.

J Environ Sci Health B 2010 Oct;45(7):658-65

Department of Toxicology, West Pomeranian University of Technology, Szczecin, Poland.

The aim of this study was to determine the concentration of organochlorine pesticides [HCH and isomers (alpha, beta, gamma), aldrin, dieldrin, endrin, heptachlor and heptachlor epoxide and DDT and its metabolites (op'-DDD, pp'-DDD, op'-DDT, pp'-DDE, pp'-DDT] in smoked fish. Analysis was made of 12 typical smoked fish products that are the most popular among customers from the city of Szczecin, Poland. Pesticide residues were found in all samples of smoked fish. Read More

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October 2010

Organochlorine pesticide residues in dairy products in Jordan.

Chemosphere 2009 Oct 19;77(5):673-8. Epub 2009 Aug 19.

Industrial Chemistry Centre, Royal Scientific Society, P.O. Box 1438, Al-Jubaiha, Amman 11941, Jordan.

The use of aldrin, dieldrin, endrin, heptachlor and hexachlorobenzene (HCB) has been banned in Jordan officially in 1981, and of dichlorodiphenyltrichloroethane (DDT) in 1995. However, residues of such compounds can still be found in the environment and in foodstuffs. Dairy products are an important exposure route for organochlorine pesticides (OCPs) to humans. Read More

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October 2009

Endosulfan and other organochlorine pesticide residues in maternal and cord blood in North Indian population.

Bull Environ Contam Toxicol 2008 Aug 17;81(2):216-9. Epub 2008 May 17.

Department of Biochemistry, University College of Medical Sciences, Dilshad Garden, Delhi, 110 095, India.

Humans are exposed to various environmental chemicals such as organochlorine pesticide residues, heavy metals, polychlorinatedbiphenyls (PCBs) etc. There is paucity of data regarding the present blood levels of organochlorine residues in North Indian population with reference to reproductive health. The present study was designed to analyze the levels of organochlorine pesticide residues in maternal and cord blood samples of normal healthy women with full term pregnancy to gain insight into the current status of pesticide burden in newborns. Read More

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Occurrence, distribution and possible sources of organochlorine pesticide residues in tropical coastal environment of India: an overview.

Environ Int 2008 Oct 18;34(7):1062-71. Epub 2008 Apr 18.

Department of Marine Science, University of Calcutta, 35 Ballygunge Circular Road, Calcutta 700019, India.

Organochlorine pesticides (OCPs) are an important potential component of chemical pollutants used extensively for agriculture and sanitation purposes in India as these are comparatively cheap and effective. These persistent organic compounds such as HCH isomers, DDT and its metabolites are the predominant chemical contaminants found along the Indian coast and thus constitute both alluring and grave areas of scientific research. Our objective in the paper is to provide a comprehensive account of the distribution of organochlorine pesticides in biotic and abiotic compartments of the Indian coastal environment, make some comments on their environmental sources, their movement through the food chain and possible ecotoxicological risk of health in biota including humans. Read More

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October 2008

Efficient removal of the organochlorine pesticide and heavy-metal residues in Epimedium brevicornum Maxim by supercritical fluid extraction.

Arch Pharm Res 2007 Dec;30(12):1558-65

Department of Pharmaceutical Analysis, Shenyang Pharmaceutical University, Shenyang 110016, China.

A method involving depuration of 12 organochlorine pesticides (OCPs) and 7 heavy metals from Epimedium brevicomum Maxim was developed using supercritical fluid extraction (SPE). The pesticides in the study consisted of alpha, beta-, gamma-, and delta-Benzene hexachloride, Pentachloronitrobenzene (PCNB), Pentachloroaniline (PCA), Heptachlor (HEPT), Methyl -pentachlorophenyl sulfide (MPCPS), pp'-DDE[1,1-dichloro-2, 2-bis (p-chlorophenyl) ethylene], op'-DDT [1,1,1-trichloro-2-(o-chlorophenyl)-2-(p-chlorophenyl)ethane], pp'-DDD [1,1-dichloro-2-2-bis(p-chlorophenyl)]ethane, pp'-DDT [1,1,1-trichloro-2,2-bis(p-chlorophenyl) ethane]. A series of experiments was conducted to optimize the final extraction conditions as following: pure CO2, extraction pressure of 15 Mpa, extration temperature of 60 degrees C, extraction time of 10 min, flow rate at 55 kg/h. Read More

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December 2007

Pesticides removal in the process of drinking water production.

Chemosphere 2008 Mar 26;71(1):97-106. Epub 2007 Nov 26.

Department of Chemical Engineering and Environmental Technologies, University of Zaragoza, Pedro Cerbuna, 12, 50009 Zaragoza, Spain.

The aim of this research work was to study the effectiveness of the treatments commonly used in drinking water plants in Spain to degrade 44 pesticides systematically detected in the Ebro River Basin. The pesticides studied are: alachlor, aldrin, ametryn, atrazine, chlorfenvinfos, chlorpyrifos, pp'-DDD, op'-DDE, op'-DDT, pp'-DDT, desethylatrazine, 3,4-dichloroaniline, 4,4'-dichlorobenzophenone, dicofol, dieldrin, dimethoate, diuron, alpha-endosulphan, endosulphan-sulphate, endrin, alpha-HCH, beta-HCH, gamma-HCH, delta-HCH, heptachlor, heptachlor epoxide A, heptachlor epoxide B, hexachlorobenzene, isodrin, 4-isopropylaniline, isoproturon, metholachlor, methoxychlor, molinate, parathion methyl, parathion ethyl, prometon, prometryn, propazine, simazine, terbuthylazine, terbutryn, tetradifon and trifluralin. The techniques applied are: preoxidation by chlorine or ozone, chemical precipitation with aluminium sulphate and activated carbon adsorption. Read More

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Assessment of the genotoxic potential of benzo(a)pyrene and pp'-dichlorodiphenyldichloroethylene in Zebra mussel (Dreissena polymorpha).

Mutat Res 2008 Jan 6;649(1-2):135-45. Epub 2007 Oct 6.

Department of Biology, University of Milan, Via Celoria 26, Milan, Italy.

The single-cell gel electrophoresis (SCGE) assay and the micronucleus (MN) test were carried out with haemocytes of Zebra mussel (Dreissena polymorpha) specimens to evaluate the potential genotoxicity of benzo(a)pyrene (BaP) and pp'-dichlorodiphenyldichloroethylene (pp'-DDE, a metabolite of pp'-DDT). Mussels were exposed to three different concentrations (0.1 microg/L, 2 microg/L, 10 microg/L) of each chemical in water during 168 h (SCGE assay) and 96 h (MN test) of exposure under laboratory conditions. Read More

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January 2008

Changes in surface area and concentrations of semivolatile organic contaminants in aging snow.

Environ Sci Technol 2007 Jul;41(14):4932-7

Aquatic Ecosystem Protection Research Division, Environment Canada, 867 Lakeshore Road, Burlington, Ontario, Canada L7R 4A6.

During the winter of 1999/2000 five snowpacks at Turkey Lake Watershed east of Lake Superior were sampled immediately after falling and again after several days of aging for the analysis of specific snow surface area and the concentrations of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs). The snow surface could be determined with a relative coefficient of variation of 6% using frontal chromatography, measuring the retention of ethyl acetate, a substance with known adsorption coefficient on the ice surface. The snow surface area of fresh snow varied from 1000 to 1330 cm2/g and was higher for snow falling during colder days. Read More

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Pesticide/herbicide pollutants in the Kafue River and a preliminary investigation into their biological effect through catalase levels in fish.

Jpn J Vet Res 2006 Nov;54(2-3):119-28

School of Veterinary Medicine, University of Zambia, Box 32379, Lusaka, Zambia.

The study determined the types of pesticide/herbicide pollutants in water, sediment and fish from the Kafue River. A preliminary investigation of the oxidative stress from these pesticides/herbicides was also assessed by measurement of catalase activity. Water, sediment and fish samples were collected upstream, midstream and downstream the Kafue river in Chingola, Kitwe, Kafue National Park and Kafue Town. Read More

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November 2006

Separating DDTs in edible animal fats using matrix solid-phase dispersion extraction with activated carbon filter, Toyobo-KF.

Authors:
Naoto Furusawa

J Chromatogr Sci 2006 Sep;44(8):498-503

Graduate School of Human Life Science, Osaka City University, Osaka 558-8585, Japan.

A technique is presented for the economical, routine, and quantitative analysis of contamination by dichloro-diphenyl-trichloroethanes (DDTs) [pp'-DDT, pp'-dichlorodiphenyl dichloroethylene, and pp'-dichlorodiphenyl dichloreothane in beef tallow and chicken fat samples, based on their separation using matrix solid-phase dispersion (MSPD) extraction with Toyobo-KF, an activated carbon fiber. Toyobo-KF is a newly applied MSPD sorbent, and it is followed by reversed-phase high-performance liquid chromatography (HPLC) with a photodiode array detector. The resulting analytical performance parameters [recoveries of spiked DDTs (0. Read More

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September 2006

Evaluating the interactions of vertebrate receptors with persistent pollutants and antifouling pesticides using recombinant yeast assays.

Anal Bioanal Chem 2006 Jul 17;385(6):1012-9. Epub 2006 May 17.

Department of Molecular Biology, Institut de Biologia Molecular de Barcelona, CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain.

The development of in vitro methods for screening potentially harmful biological activities of new compounds is an extremely important way to increase not only their intrinsic environmental safety, but also the public perception of the safety standards associated with them. In this work we use two yeast systems to test the ability of different chemicals to bind and activate two vertebrate receptors which are intimately related to adverse biological effects of pollution in exposed fauna: the estrogen receptor (ER) and the aryl hydrocarbon receptor (AhR). The panel of compounds analysed here includes well-known pollutants, like PCBs, pp'-DDT and hexachlorobenzene, together with the less-known, emerging putative pollutants, such as Sea-Nine, Irgarol and diuron. Read More

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Organochlorine and organophosphorous pesticide residues in the Ouémé River catchment in the Republic of Bénin.

Environ Int 2006 Jul 13;32(5):616-23. Epub 2006 Mar 13.

Laboratoire de Biochimie et de Biologie Cellulaire, FAST/UAC, BP 526, Cotonou, Bénin.

The Ouémé River is one of the most important rivers in the Republic of Bénin. It is 510 km long and its catchment drains 75% of the country. In this study, organochlorine and organophosphorous pesticide residues were measured in more than 35 sediment samples collected on nine locations along the Ouémé River from upstream to downstream. Read More

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