Appendix 2-5: Rejected ecotox bibliography for Chlorpyrifos



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It is proposed that the phylogenetic ubiquity of ChEs and their basic capacities that are important for evolutionary phylogenesis, such as the capacity to promote cell adhesion and cell communication speaks for ChEs as "Ur" proteins. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
Keywords: Cholinesterases, Cholinergic system
ISI Document Delivery No.: 641EW

660. Karimullina, E.; Li, Y.; Ginjupalli, G. K., and Baldwin, W. S. Daphnia HR96 is a Promiscuous Xenobiotic and Endobiotic Nuclear Receptor. 2012; 116-117, 69-78.


Rec #: 2350
Keywords: IN VITRO
Call Number: NO IN VITRO (24D,24DXY,ATZ,CAC,CPY,CYP,IGS)
Notes: EcoReference No.: 158135
Chemical of Concern: 24D,24DXY,ATZ,BPA,CAC,CPY,CYP,EPRN,FXT,HCCH,IGS,MSMA,MXC,OLEA,PPCP,PPCP2011,PRN,PYX

661. Karpuzcu, M. Ekrem; Sedlak, David L., and Stringfellow, William T. Biotransformation of chlorpyrifos in riparian wetlands in agricultural watersheds: Implications for wetland management. 2013 Jan 15-; 244Çô245, (0): 111-120.


Rec #: 1030
Keywords: FATE
Notes: Chemical of Concern: CPY
Abstract: Biodegradation of the organophosphate insecticide chlorpyrifos (O,O-diethyl O-(3,5,6-trichloropyridin-2-yl) phosphorothioate) in sediments from wetlands and agricultural drains in San Joaquin Valley, CA was investigated. Sediments were collected monthly, spiked with chlorpyrifos, and rates of chlorpyrifos degradation were measured using a standardized aerobic biodegradation assay. Phosphoesterase enzyme activities were measured and phosphotriesterase activity was related to observed biodegradation kinetics. First-order biodegradation rates varied between 0.02 and 0.69 dayêÆ1, after accounting for abiotic losses. The average rate of abiotic chlorpyrifos hydrolysis was 0.02 dêÆ1 at pH 7.2 and 30 -_C. Sediments from the site exhibiting the highest chlorpyrifos degradation capacity were incubated under anaerobic conditions to assess the effect of redox conditions on degradation rates. Half-lives were 5 and 92 days under aerobic and anaerobic conditions, respectively. There was a consistent decrease in observed biodegradation rates at one site due to permanently flooded conditions prevailing during one sampling year. These results suggest that wetland management strategies such as allowing a wet-dry cycle could enhance degradation rates. There was significant correlation between phosphotriesterase (PTE) activity and the chlorpyrifos biotransformation rates, with this relationship varying among sites. PTE activities may be useful as an indicator of biodegradation potential with reference to the previously established site-specific correlations. Chlorpyrifos/ Organophosphate insecticides/ Wetlands/ Agricultural drainage/ Biodegradation

662. Karunanayake, Chandima P; Spinelli, John J; Mclaughlin, John R; Dosman, James a; Pahwa, Punam; Mcduffie, Helen H, and Karunanayake, Chandima P. Hodgkin Lymphoma and Pesticides Exposure in Men: a Canadian Case-Control Study. 2012 Jan; 17, (1): 30-39.


Rec #: 42959
Keywords: HUMAN HEALTH
Notes: Chemical of Concern: CPY
Abstract: Abstract: The objective of this study was to investigate the putative associations of specific pesticides with Hodgkin lymphoma. A population-based, case-control study of Hodgkin lymphoma was conducted among males in six regions of Canada. Data were collected by a mailed questionnaire followed by a telephone interview to obtain detailed exposures data for those reporting greater than or equal to 10 hours per year of pesticide exposure. Conditional logistic regression was used to fit statisticalmodels. Comparisons of 316 Hodgkin lymphoma cases and 1506 controls identified several factors as predictors for increased Hodgkin lymphoma risk: family history of cancer, exposure to the insecticide chlorpyrifos [OR (95% CI) = 1.19 (1.03, 1.37)], and previous diagnosis of acne or shingles. The increased risk of developing Hodgkin lymphoma detected among Canadian men who used chlorpyrifos must be interpreted cautiously; however the strength of its association indicates that it requires investigation in other populations.
Keywords: Chlorpyrifos
Keywords: Genetics
Keywords: Insecticides
Keywords: H 5000:Pesticides
Keywords: Males
Keywords: Pesticides
Keywords: Risk Abstracts; Health & Safety Science Abstracts; Environment Abstracts
Keywords: R2 23060:Medical and environmental health
Keywords: lymphoma
Keywords: Cancer
Keywords: ENA 02:Toxicology & Environmental Safety
Date revised - 2012-09-01
Language of summary - English
Pages - 30-39
ProQuest ID - 1038606658
SubjectsTermNotLitGenreText - Chlorpyrifos; Genetics; Insecticides; Males; Pesticides; lymphoma; Cancer
Last updated - 2012-10-08
British nursing index edition - Journal of Agromedicine [J. Agromed.]. Vol. 17, no. 1, pp. 30-39. Jan 2012.
Corporate institution author - Karunanayake, Chandima P; Spinelli, John J; McLaughlin, John R; Dosman, James A; Pahwa, Punam; McDuffie, Helen H
DOI - 778959a7-c3f4-403e-b728mfgefd107; 17033049; 1059-924X; 1545-0813 English

663. Kashanian, S.; Shariati, Z.; Roshanfekr, H., and Ghobadi, S. DNA Binding Studies of 3, 5, 6-Trichloro-2-Pyridinol Pesticide Metabolite. 2012; 31, (7): 1341-1348.


Rec #: 62599
Keywords: IN VITRO
Notes: Chemical of Concern: CPY
Abstract: Abstract: 3, 5, 6-Trichloro-2-pyridinol (TCP) is a stable metabolite of two major pesticides, Chlopyrifos insecticide and Triclopyr herbicide, which are widely used in the world. The potential health hazard associated with TCP is identified due to its high affinity to the DNA molecule. Therefore, in this study, the interaction of native calf thymus DNA with TCP has been investigated using spectrophotometric, circular dichroism (CD), spectrofluorometric, viscometric and voltametric techniques. It was found that TCP molecules could interact with DNA via a groove-binding mode, as evidenced by hyperchromism, with no red shift in the UV absorption band of TCP, no changes in K(b) values in the presence of salt, no significant changes in the specific viscosity and CD spectra of DNA, and a decrease in peak currents with no shift in the voltamogram. In addition, TCP is able to release Hoechst 33258, a strong groove binder, in the DNA solutions. The results are indicative of the groove-binding mode of TCP to DNA.
Keywords: CALF THYMUS DNA, MIXED-POLYPYRIDYL COMPLEXES, CLEAVAGE ACTIVITY,
ISI Document Delivery No.: 973JU

664. Katagi, T. Surfactant Effects on Environmental Behavior of Pesticides. SOIL; 2008: 71-177.


Rec #: 2060
Keywords: REVIEW
Call Number: NO REVIEW (ATZ,AZ,CPY,CTN,DM,DMT,FNT,FPN,OXF,PCZ,PHMD,PPCP,PPCP2011,PPG,PSM,TFN,TMP,VCZ)
Notes: EcoReference No.: 151853
Chemical of Concern: ATZ,AZ,BTC,CPY,CTN,DDT,DFPM,DLD,DM,DMT,FNT,FPN,HCCH,HPT,OXF,PCZ,PHMD,PPCP,PPCP2011,PPG,PSM,TFN,TMP,VCZ

665. Kayampilly, P. P.; Wanamaker, B. L.; Stewart, J. A.; Wagner, C. L., and Menon, K. M. Stimulatory Effect of Insulin on 5alpha-Reductase Type 1 (Srd5a1) Expression Through an Akt-Dependent Pathway in Ovarian Granulosa Cells.


Rec #: 50439
Keywords: NO TOXICANT
Notes: Chemical of Concern: CPY
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ABSTRACT: Elevated levels of 5α-reduced androgens have been shown to be associated with hyperandrogenism and hyperinsulinemia, the leading causes of ovulatory dysfunction in women. 5α-Dihydrotestosterone reduces ovarian granulosa cell proliferation by inhibiting FSH-mediated mitogenic signaling pathways. The present study examined the effect of insulin on 5α-reductase, the enzyme that catalyses the conversion of androgens to their 5α-derivatives. Granulosa cells isolated from immature rat ovaries were cultured in serum-free, phenol red-free DMEM-F12 media and treated with different doses of insulin (0, 0.1, 1.0, and 10.0 μg/ml) for different time intervals up to 12 h. The expression of 5α-reductase type 1 mRNA, the predominant isoform found in granulosa cells, showed a significant (P < 0.05) increase in response to the insulin treatment up to 12 h compared with control. The catalytic activity of 5α-reductase enzyme was also stimulated in a dose-depended manner (P < 0.05). Inhibiting the Akt-dependent signaling pathway abolished the insulin-mediated increase in 5α-reductase mRNA expression, whereas inhibition of the ERK-dependent pathway had no effect. The dose-dependent increase in 5α-reductase mRNA expression as well as catalytic activity seen in response to insulin treatment was also demonstrated in the human granulosa cell line (KGN). In addition to increased mRNA expression, a dose-dependent increase in 5α-reductase protein expression in response to insulin was also seen in KGN cells, which corroborated well with that of mRNA expression. These results suggest that elevated levels of 5α-reduced androgens seen in hyperinsulinemic conditions might be explained on the basis of a stimulatory effect of insulin on 5α-reductase in granulosa cells. The elevated levels of these metabolites, in turn, might adversely affect growth and proliferation of granulosa cells, thereby impairing follicle growth and ovulation.
MESH HEADINGS: 3-Oxo-5-alpha-Steroid 4-Dehydrogenase/*genetics/metabolism
MESH HEADINGS: Animals
MESH HEADINGS: Cells, Cultured
MESH HEADINGS: Dose-Response Relationship, Drug
MESH HEADINGS: Enzyme Activation/drug effects
MESH HEADINGS: Female
MESH HEADINGS: Gene Expression Regulation, Enzymologic/drug effects
MESH HEADINGS: Granulosa Cells/*drug effects/enzymology/metabolism
MESH HEADINGS: Humans
MESH HEADINGS: Insulin/*pharmacology
MESH HEADINGS: Membrane Proteins/*genetics/metabolism
MESH HEADINGS: Oncogene Protein v-akt/metabolism/*physiology
MESH HEADINGS: Ovary/drug effects/metabolism
MESH HEADINGS: RNA, Messenger/metabolism
MESH HEADINGS: Rats
MESH HEADINGS: Rats, Sprague-Dawley
MESH HEADINGS: Signal Transduction/drug effects/genetics
MESH HEADINGS: Up-Regulation/drug effects eng

666. Kazmierczak, R. F. Jr.; Norton, G. W.; Knight, A. L.; Rajotte, E. G., and Hull, L. A. Economic Effects of Resistance and Withdrawal of Organophosphate Pesticides on an Apple Production System. 5570//: SOIL; 1993; 86, (3): 684-696.


Rec #: 960
Keywords: MODELING,REFS CHECKED
Call Number: NO MODELING (CPY,MP), NO REFS CHECKED (CPY,MP)
Notes: Chemical of Concern: CPY,MP

667. Kazos, E. A.; Nanos, C. G.; Stalikas, C. D., and Konidari, C. N. Simultaneous determination of chlorothalonil and its metabolite 4-hydroxychlorothalonil in greenhouse air: Dissipation process of chlorothalonil. 2008; 72, (10): 1413-1419.


Rec #: 62679
Keywords: FATE
Notes: Chemical of Concern: CPY
Abstract: Abstract: An analytical method was developed and tested for the simultaneous determination of chlorothalonil and its main metabolite 4-hydroxychlorothalonil, in airborne samples. High performance liquid chromatography equipped with Ultra-violet detector was used to separate and quantify the analytes. Glass microfibre filters for the collection of the analytes' particles were tested. Solid sorbents, such as Tenax, Florisil, XAD-2 and silica gel, were studied to find out the most suitable material for the collection of the analytes in the gas phase. The results have shown that only chlorothalonil was trapped in the vapor phase with highest results obtained when silica gel was the sorbent of choice. Linearity was demonstrated in a wide concentration range 0.01-10.00 mg L(-1). Recoveries from spiked glass microfibre filters and silica gel cartridges for chlorothalonil and 4-hydroxychlorothalonil were almost quantitative. The quantification limits were calculated to be 8.4 and 19.6 ng m(-3) in air for chlorothalonil and 4-hydroxychlorothalonil, respectively. The two analytes spiked on the GF/A filters and silica gel cartridges were proven to be stable for more than 15 days, at 4 degrees C and ambient temperature. The applicability of the present method was demonstrated by the analysis of the chlorothalonil and its metabolite in greenhouse air. (C) 2008 Elsevier Ltd. All rights reserved.
Keywords: fungicides, chlorothalonil, 4-hydroxychlorothalonil, air sampling, HPLC
ISI Document Delivery No.: 347UH

668. Keenan, J. J.; Vega, H., and Krieger, R. I. Potential exposure of children and adults to cypermethrin following use of indoor insecticide foggers. 2009; 44, (6): 538-545.


Rec #: 62699
Keywords: HUMAN HEALTH
Notes: Chemical of Concern: CPY
Abstract: Abstract: The magnitude and distribution of cypermethrin from total release, over-the-counter foggers was studied in a test room and in residences to facilitate evaluation of regulatory exposure algorithms and new human exposure assessments based upon urine biomonitoring. Surface residue (SR) was evenly distributed in a small test room (3.6 mu g cypermethrin/cm(2)) where thorough mixing of the aerosol occurred. In a residence SR was significantly affected by room size and distance from the fogger. Air levels in the residence were as high as 30 mu g cypermethrin/cm(3) after 4.5 h. The availability of surface residues was measured with an automated surface cotton cloth wipe and ethyl acetate extraction. Only 5% of the SR was available from nylon carpet. Tile, wood and linoleum resulted in 30, 10, and 10% of SR being available, respectively. These data are used to estimate cypermethrin exposure of children and adults for comparison with existing regulatory reference dosages and exposure assessments based upon biomonitoring.
Keywords: Pyrethroid exposure, children, cypermethrin, indoor, fogger
ISI Document Delivery No.: 535VX

669. Keikotlhaile, B. M.; Spanoghe, P., and Steurbaut, W. Effects of food processing on pesticide residues in fruits and vegetables: A meta-analysis approach. 2010; 48, (1): 1-6.


Rec #: 62709
Keywords: FOOD
Notes: Chemical of Concern: CPY
Abstract: Abstract: Pesticides are widely used in food production to increase food security despite the fact that they can have negative health effects on consumers. Pesticide residues have been found in various fruits and vegetables; both raw and processed. One of the most common routes of pesticide exposure in consumers is via food consumption. Most foods are consumed after passing through various culinary and processing treatments. A few literature reviews have indicated the general trend of reduction or concentration of pesticide residues by certain methods of food processing for a particular active ingredient. However, no review has focused on combining the obtained results from different studies on different active ingredients with differences in experimental designs, analysts and analysis equipment. In this paper, we present a meta-analysis of response ratios as a possible method of combining and quantifying effects of food processing on pesticide residue levels. Reduction of residue levels was indicated by blanching, boiling. canning, frying, juicing, peeling and washing of fruits and vegetables with an average response ratio ranging from 0.10 to 0.82. Baking, boiling, canning and juicing indicated both reduction and increases for the 95% and 99.5% confidence intervals. (C) 2009 Elsevier Ltd. All rights reserved.
Keywords: Food processing, Fruits, Meta-analysis, Pesticides, Vegetables
ISI Document Delivery No.: 554UJ

670. Kelley, R. L.; Lee, O. K., and Shim, Y. K. Transcription Rate of Noncoding Rox1 Rna Controls Local Spreading of the Drosophila Msl Chromatin Remodeling Complex.


Rec #: 51059
Keywords: NO TOXICANT
Notes: Chemical of Concern: CPY
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ABSTRACT: The dosage compensation complex in Drosophila is composed of at least five MSL proteins and two noncoding roX RNAs that bind hundreds of sites along the single male X chromosome. The roX RNAs are transcribed from X-linked genes and their RNA products "paint" the male X. The roX RNAs and bound MSL proteins can spread in cis from sites of roX transcription, but the mechanism controlling spreading is unknown. Here we find that cis spreading from autosomal roX1 transgenes is coupled to the level of roX transcription. Low to moderate transcription favors, and vigorous transcription abolishes local spreading. We constructed a roX1 minigene one third the size of wild type as a starting point for mutagenesis. This allowed us to test which evolutionarily conserved motifs were required for activity. One short repeat element shared between roX1 and roX2 was found to be particularly important. When all copies were deleted, the RNA was inactive and unstable, while extra copies seem to promote local spreading of the MSL complex from sites of roX1 synthesis. We propose that assembly of the MSL proteins onto the extreme 3' region of elongating roX1 transcripts determines whether the MSL complex spreads in cis.
MESH HEADINGS: Animals
MESH HEADINGS: Chromatin/*chemistry/metabolism
MESH HEADINGS: Chromosomes/metabolism
MESH HEADINGS: DNA Mutational Analysis
MESH HEADINGS: Deoxyribonuclease I/metabolism
MESH HEADINGS: Drosophila/enzymology/*genetics
MESH HEADINGS: Drosophila Proteins/*genetics/metabolism/*physiology
MESH HEADINGS: Female
MESH HEADINGS: Male
MESH HEADINGS: Models, Genetic
MESH HEADINGS: Mutagenesis
MESH HEADINGS: RNA/*metabolism
MESH HEADINGS: RNA, Untranslated/*genetics
MESH HEADINGS: Transcription Factors/*genetics/*physiology
MESH HEADINGS: *Transcription, Genetic eng

671. Kenaga, E. E. and Dowell, F. H. Critique of "Biological Effects and Persistence of Dursban in Freshwater Ponds". 1970; 63, 43-52.


Rec #: 2050
Keywords: NO SOURCE
Notes: Chemical of Concern: CPY

672. Kennedy, Marc C. Bayesian modelling of long-term dietary intakes from multiple sources. 2010 Jan; 48, (1): 250-263.


Rec #: 4660
Keywords: HUMAN HEALTH
Notes: Chemical of Concern: CPY
Abstract: Human exposure to a specific pesticide or other chemical can occur from a combination of food and drink products. Probabilistic risk assessments are used to quantify the distribution of mean total daily exposures in the population, from the available data on residues and consumptions. We present a new statistical method for estimating this distribution, based on dietary survey data for multiple food types and residue monitoring data. The model allows for between-food correlations in both frequency and amounts of consumption. Three case studies are presented based on consumption data for UK children, considering the distribution of daily intakes of pyrimethanil, captan and chlorpyrifos aggregated over 4, 6 and 10 food types, respectively. We compared three alternative approaches, each using a Bayesian approach to quantify uncertainty: (i) a multivariate model that explicitly includes correlation parameters; (ii) separate independent parametric models for individual food types and (iii) a single parametric model applied to intakes aggregated directly from the data. The results demonstrate the importance of accounting for correlations between foods, using model (i) or (iii), for example, but also show that model (iii) can produce very different results when the aggregated intakes distribution is bimodal. The influence of residue uncertainty is also demonstrated. Statistical model/ Pesticide exposure/ Uncertainty/ Usual intakes

673. Kennedy, Marc C; Roelofs, Victoria J; Anderson, Clive W; Salazar, Jose Domingo, and Kennedy, Marc C. A Hierarchical Bayesian Model for Extreme Pesticide Residues. 2011 Jan; 49, (1): 222-232.


Rec #: 47499
Keywords: SURVEY
Notes: Chemical of Concern: CPY
Abstract: Abstract: The number of residue measurements in an individual field trial, carried out to provide data for a pesticide registration for a particular crop, is generally too small to estimate upper tails of the residue distribution for that crop with any certainty. We present a new method, using extreme value theory, which pools information from various field trials, with different crop and pesticide combinations, to provide a common model for the upper tails of residue distributions generally. The method can be used to improve the estimation of high quantiles of a particular residue distribution. It provides a flexible alternative to the direct fitting of a distribution to each individual dataset, and does not require strong distributional assumptions. By using a hierarchical Bayesian model, our method also accounts for parameter uncertainty. The method is applied to a range of supervised trials containing residues on individual items (e.g. on individual apples), and the results illustrate the variation in tail properties amongst all commodities and pesticides. The outputs could be used to select conservative high percentile residue levels as part of a deterministic risk assessment, taking account of the variability between crops and pesticides and also the uncertainty due to relatively small datasets.
Keywords: Risk assessment
Keywords: Food And Food Industries
Keywords: Data processing
Keywords: Mathematical models
Keywords: Pesticide residues
Keywords: Bayesian analysis
Keywords: Tails
Keywords: Pesticides
Keywords: X 24330:Agrochemicals
Keywords: Toxicology Abstracts
Keywords: Crops
Keywords: Models
Date revised - 2011-10-01
Language of summary - English
Pages - 222-232
ProQuest ID - 855284705
SubjectsTermNotLitGenreText - Risk assessment; Data processing; Mathematical models; Pesticide residues; Bayesian analysis; Tails; Pesticides; Crops; Models
Last updated - 2011-12-13
Corporate institution author - Kennedy, Marc C; Roelofs, Victoria J; Anderson, Clive W; Salazar, Jose Domingo
DOI - OB-6ff1b456-4871-4e19-a874csamfg201; 14366190; 0278-6915 English

674. Keune, H.; Gutleb, A. C.; Zimmer, K. E.; Ravnum, S.; Yang, A.; Bartonova, A.; von Krauss, M. K.; Ropstad, E.; Eriksen, G. S.; Saunders, M.; Magnanti, B., and Forsberg, B. We're only in it for the knowledge? A problem solving turn in environment and health expert elicitation. 2012; 11, S3-S3.


Rec #: 62749
Keywords: HUMAN HEALTH
Notes: Chemical of Concern: CPY
Abstract: Abstract: Background: The FP6 EU HENVINET project aimed at synthesizing the scientific information available on a number of topics of high relevance to policy makers in environment and health. The goal of the current paper is to reflect on the methodology that was used in the project, in view of exploring the usefulness of this and similar methodologies to the policy process. The topics investigated included health impacts of the brominated flame retardants decabrominated diphenylether (decaBDE) and hexabromocyclododecane (HBCD), phthalates highlighting di(2-ethylhexyl)phthalate (DEHP), the pesticide chlorpyrifos (CPF), nanoparticles, the impacts of climate change on asthma and other respiratory disorders, and the influence of environment health stressors on cancer induction. Methods: Initially the focus was on identifying knowledge gaps in the state of the art in scientific knowledge. Literature reviews covered all elements that compose the causal chain of the different environmental health issues from emissions to exposures, to effects and to health impacts. Through expert elicitation, knowledge gaps were highlighted by assessing expert confidence using calibrated confidence scales. During this work a complementary focus to that on knowledge gaps was developed through interdisciplinary reflections. By extending the scope of the endeavour from only a scientific perspective, to also include the more problem solving oriented policy perspective, the question of which kind of policy action experts consider justifiable was addressed. This was addressed by means of a questionnaire. In an expert workshop the results of both questionnaires were discussed as a basis for policy briefs. Results: The expert elicitation, the application of the calibrated confidence levels and the problem solving approach were all experienced as being quite challenging for the experts involved, as these approaches did not easily relate to mainstream environment and health scientific practices. Even so, most experts were quite positive about it. In particular, the opportunity to widen one's own horizon and to interactively exchange knowledge and debate with a diversity of experts seemed to be well appreciated in this approach. Different parts of the approach also helped in focussing on specific relevant aspects of scientific knowledge, and as such can be considered of reflective value. Conclusions: The approach developed by HENVINET was part of a practice of learning by doing and of interdisciplinary cooperation and negotiation. Ambitions were challenged by unforeseen complexities and difference of opinion and as no Holy Grail approach was at hand to copy or follow, it was quite an interesting but also complicated endeavour. Perfection, if this could be defined, seemed out of reach all the time. Nevertheless, many involved were quite positive about it. It seems that many felt that it fitted some important needs in current science when addressing the needs of policy making on such important issues, without anyone really having a clue on how to actually do this. Challenging questions remain on the quality of such approach and its product. Practice tells us that there probably is no best method and that the best we can do is dependent on contextual negotiation and learning from experiences that we think are relevant.
ISI Document Delivery No.: 970YD

675. Khairy, Mohammed Abd; El-Hamid; Kolb, Marit; Mostafa, Alaa R; El-Fiky, Anwar, and Bahadir, Mă Fit. Risk Posed by Chlorinated Organic Compounds in Abu Qir Bay, East Alexandria, Egypt. 2012 Mar; 19, (3): 794-811.


Rec #: 42829
Keywords: SURVEY
Notes: Chemical of Concern: CPY
Abstract: Abstract: In Egypt, the picture of threats to humans and the environment from the exposure to organic pollutants is still incomplete. Thus the objectives of this study were to assess the occurrence and distribution of polychlorinated biphenyls (PCB), organochlorine pesticides, and chlorpyrifos in sediments and mussels of Abu Qir Bay and their risks for environment and human health. Twenty-three different compounds organochlorines were determined in 20 surfacial sediment and 10 mussel samples by gas chromatography-electron capture detector. A Screening Level Ecological Risk Assessment (SLERA) and a Human Health Risk Assessment (HHRA) were performed with the data. ÎŁDDT (DDT, DDE, DDD) (average concentration 27 ÎĽg/kg dw) dominated the detected organic pollutants in the sediments, followed by CHLs (chlordane, heptachlor, heptachloro epoxide), hexachlorocyclohexane, chlorpyrifos, endosulfane, dieldrine, ÎŁ6 PCBs, aldrine, hexachlorobenzene, pentachlorobenzene, methoxychlor, and mirex. In general, concentrations of ÎŁ6 PCBs in mussels were higher than their corresponding sediment concentrations reflecting their relatively high bioavailability and bioaccumulative potential. However, concentrations of the organochlorine pesticides in mussels were lower than their corresponding sediment samples. Nevertheless, the SLERA on the bay sediments revealed that adverse ecological effects to benthic species are expected to occur whereas the HHRA showed that adverse health effects are not expected to occur from the consumption of the mussels. With the help of a SLERA, it was possible to indicate which class of chlorinated organic compounds is of highest concern to assess and to improve the environmental quality of the bay. Monitoring of organochlorines and chlorpyrifos would be needed to control the future trend of pollution. [PUBLICATION ABSTRACT]
Keywords: Animals
Keywords: Bivalvia -- chemistry
Keywords: Polychlorinated Biphenyls -- analysis
Keywords: Insecticides
Keywords: Dieldrin -- toxicity
Keywords: Dieldrin -- chemistry
Keywords: Dieldrin -- analysis
Keywords: DDT -- toxicity
Keywords: Insecticides -- chemistry
Keywords: Water Pollutants, Chemical
Keywords: 3300:Risk management
Keywords: DDT -- chemistry
Keywords: DDT -- analogs & derivatives
Keywords: Insecticides -- toxicity
Keywords: Water Pollutants, Chemical -- chemistry
Keywords: Chlorpyrifos -- chemistry
Keywords: Dieldrin
Keywords: Water Quality
Keywords: Lindane -- analysis
Keywords: Risk Assessment -- methods
Keywords: Insecticides -- analysis
Keywords: Chlorpyrifos
Keywords: 9177:Africa
Keywords: Shellfish -- analysis
Keywords: Hydrocarbons, Chlorinated -- toxicity
Keywords: Chlorpyrifos -- toxicity
Keywords: DDT
Keywords: Hydrocarbons, Chlorinated -- chemistry
Keywords: Geologic Sediments -- chemistry
Keywords: Lindane -- chemistry
Keywords: Water Pollutants, Chemical -- analysis
Keywords: Humans
Keywords: Water Pollutants, Chemical -- toxicity
Keywords: Polychlorinated Biphenyls
Keywords: 1540:Pollution control
Keywords: Chlorpyrifos -- analysis
Keywords: Environmental Studies--Pollution
Keywords: Hydrocarbons, Chlorinated
Keywords: DDT -- analysis
Keywords: Chlordan -- toxicity
Keywords: Lindane -- toxicity
Keywords: Chromatography, Gas
Keywords: Polychlorinated Biphenyls -- toxicity
Keywords: Polychlorinated Biphenyls -- chemistry
Keywords: Lindane
Keywords: 9130:Experimental/theoretical
Keywords: Egypt
Keywords: Chlordan
Keywords: Chlordan -- analysis
Keywords: Hydrocarbons, Chlorinated -- analysis
Keywords: Chlordan -- chemistry
Keywords: Mediterranean Sea
Copyright - Springer-Verlag 2012
Language of summary - English
Location - Egypt
Pages - 794-811
ProQuest ID - 922510830
Document feature - Tables; Equations; References
SubjectsTermNotLitGenreText - Egypt
Last updated - 2012-04-12
Place of publication - Landsberg
Corporate institution author - Khairy, Mohammed Abd; El-hamid; Kolb, Marit; Mostafa, Alaa R; El-fiky, Anwar; Bahadir, MĂĽfit
DOI - 2591621561; 67521382; 108413; EVSP; 21948127; SPVLEVSP11356193605
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676. Khamiss, O.; Lery, X.; Belal, M. H.; Badawy, H. A.; Gianotti, J., and Abol-Ela, S. M. Effects of Some Insecticides on the Division of a Spodoptera littoralis Cell Line and on the Replication of Sl Baculovirus (NPV). 1998; 33, (3): 349-355.


Rec #: 970
Keywords: IN VITRO
Call Number: NO IN VITRO (CPY)
Notes: Chemical of Concern: CPY

677. Khan, I. A. T.; Riazuddin; Parveen, Z., and Ahmed, M. Multi-residue determination of synthetic pyrethroids and organophosphorus pesticides in whole wheat flour using gas chromatography. 2007; 79, (4): 454-458.


Rec #: 62799
Keywords: FOOD
Notes: Chemical of Concern: CPY
Abstract: Keywords: CHLORPYRIFOS-METHYL, ORGANO-PHOSPHORUS, GRAIN
ISI Document Delivery No.: 219VH

678. Khodarahmpour, Z; Hamidi, J, and Khodarahmpour, Z. Study of Yield and Yield Components of Corn (Zea Mays L.) Inbred Lines to Drought Stress. 2012 Feb 14; 11, (13): 3099-3105.


Rec #: 42879
Keywords: NO EFFECT
Notes: Chemical of Concern: CPY
Abstract: Abstract: Several strains of bacteria were successfully isolated from effluent storage pools of factories producing pesticides and from soil moisture around them. The isolates were capable of utilizing
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