Distribution of chlorinated hydrocarbon pesticides and PCBs in the Arctic Ocean

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Fisheries and Oceans , [Canada]
Pesticides -- Environmental aspects -- Arctic Archipelago (Nunavut and N.W.T.), Polychlorinated biphenyls -- Environmental aspects -- Northwest Territories -- Arctic Archipelago (Nunavut and N.W.T.), Organochlorine compounds -- Environmental aspects -- NorthwestTerritories -- Arctic Archipelago (Nunavut and N.W.T.), Environmental monitoring -- Arctic Archipelago (Nunavut and N.

Places

Arctic Archipelago (Nunavut and N.W.T.), Northwest Territories, NorthwestTerrit

Statementby B.T. Hargrave... [et al.].
SeriesCanadian technical report of fisheries and aquatic sciences,, no. 1644
ContributionsHargrave, Barry.
Classifications
LC ClassificationsTD196.P38 D58 1989
The Physical Object
Paginationix, 224 p. :
ID Numbers
Open LibraryOL1578839M
LC Control Number91100628

Get this from a library. Distribution of chlorinated hydrocarbon pesticides and PCBs in the Arctic Ocean. [Barry Hargrave;]. Chlorinated hydrocarbon solvents such as TCE are often preferred to hydrocarbon- or petroleum-based solvents because of their lower flammability (i.e.

higher flashpoint as determined by ASTM D). However, there is concern with the toxicity and carcinogenic properties of some of these materials and they should be used in well-ventilated areas.

J.W. Farrington, in Encyclopedia of Ocean Sciences (Third Edition), Abstract. Some chlorinated hydrocarbons such as the industrial chemicals PCBs and chlorinated pesticides such as DDT are considered pollutants because they entered the environment, including the oceans in the s to s and became distributed globally by atmospheric and oceanic transport.

Details Distribution of chlorinated hydrocarbon pesticides and PCBs in the Arctic Ocean FB2

However one problem with these compounds is due to their ability to persist in the environment. Compare the turnover times for the following compounds. DDT & DDE 95% is 'naturally' broken down in 10 years LD 50 = ; Lindane 95% is broken down in years LD 50 = 88; Cyclodienes (chlordane, dieldrin) 95% is broken down in 3 years LD 50 = - Furthermore, the partitioning of chlorinated compounds between sediment and water was investigated to understand their transport and fates in aquatic ecosystems.

The results indicated that average logs of organic carbon-normalized sediment-water partition coefficients (logK'(oc)) for OCPs varied between andand for PCBs, logK'(oc Cited by: Marine Chemistry 64 85– Chlorinated hydrocarbon pesticides and polychlorinated biphenyls in sediment cores from San Francisco Bay 1 M.I.

Venkatesan a,), R.P. de Leon a,2, A. van Geen b,3, S.N. Luoma c,4 a Institute of Geophysics and Planetary Physics, Uni˝ersity of California, Los Angeles, CAUSA b Lamont-Doherty Earth Obser˝atory of. Pesticide Distribution of chlorinated hydrocarbon pesticides and PCBs in the Arctic Ocean book Profile: Chlorinated Hydrocarbon Pesticides 3 Table 1.

Chlorinated hydrocarbon pesticide mammalian toxicities (mg/kg of body weight). Common name Rat oral LD 50 Rabbit dermal LD 50 Dicofol – >2, Endosulfan 18– – Table 2. Chlorinated hydrocarbon pesticide wildlife toxicity ranges. Common name Bird acute.

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Hong SH, Yim UH, Shim WJ, Oh JR, Lee IS () Horizontal and vertical distribution of PCBs and chlorinated pesticides in sediments from Masan Bay, Korea. Mar Pollut Bull – CrossRef Google ScholarCited by:   Methods and Findings. This study examined the levels of PCBs and three pesticides [p, p′-DDE, mirex, and hexachlorobenzene (HCB)] in muscle tissue from nine fish species from several locations around the Aleutian Islands of highest median PCB level was found in rock sole (Lepidopsetta bilineata, ppb, wet weight), while the lowest Cited by: Organochlorine pesticides and polychlorinated biphenyls in the Arctic Ocean Article (PDF Available) in Archives of Environmental Contamination and Toxicology 22(1) February with 68 Reads.

This chapter provides an overview of PCBs in the environment as a background to understanding their history of use, sources of input to the environment, distribution in the environment, and their human health and ecological e PCBs are such complex chemicals, knowledge of their chemical and physical properties is needed to understand their transport, fate, and toxicity.

Background Persistent organic pollutants (POPs), including polychlorinated biphenyls (PCBs) and chlorinated pesticides, have been shown to have many adverse human health effects. These contaminants therefore may pose a risk to Alaska Natives that follow a traditional diet high in marine mammals and fish, in which POPs bioaccumulate.

Methods and Findings This study. PCBs and other organic pollutants reach the deep ocean Persistent organic pollutants extend 2, m deep in the Atlantic Ocean, but at concentrations not acutely toxic to.

Chlorinated Hydrocarbon Compounds (Toxicity) Insecticides Derived from Plants (Toxicity) Organophosphates (Toxicity) to endrin, the most toxic of the three chlorinated cyclodiene insecticides.

Endosulfan: Endosulfan is widely used to control insect and mite pests on a variety of crops and orchards. It is heavily used on tobacco. The general concentrations of each chlorinated hydrocarbon were as follows: water PCBs toΣDDT toΣHCH to 10 ngl −1; air ΣDDT toΣHCH to 10 ng m −3.

PCB concentrations in surface waters were slightly lower than those of the North Atlantic and North Sea previously reported, while ΣDDT concentrations Cited by: Low-chlorinated biphenyls possessed the highest amount in fish samples while high-chlorinated biphenyls were higher in shrimp and mollusk samples.

The different distribution trends of PCBs in different organisms were ascribed to their living habits, habitats and physiological : Xiuping He, Weihong Zhao, JiangtaoWang, Rui Wang, Sift Desk.

The status and distribution of PCBs along the coast. chlorinated pesticides in sediments from Masan Bay, Concentration and distribution of PCBs, and PBDEs in both surficial. Chlorinated polycyclic aromatic hydrocarbons (Cl-PAHs) are a group of compounds comprising polycyclic aromatic hydrocarbons with two or more aromatic rings and one or more chlorine atoms attached to the ring system.

Cl-PAHs can be divided into two groups: chloro-substituted PAHs, which have one or more hydrogen atoms substituted by a chlorine atom, and chloro-added Cl. Start studying chapter 18 Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search. a type of seabird that was particularly affected by pesticides such as ddt was.

river runoff. chlorinated hydrocarbons reach the marine environment by way of. persistent. PCBS are characterized by being. chlorinated. Chlorinated pesticides appear as brown to black spots. Chlorinated and non-chlorinated pesticides may be detected by exposing the untreated, dry plate to bromine vapor for 30 seconds, drying for 30 seconds, and spray- ing with a fluorescein solution and finally with silver nitrate (42).

In springthe Texas Department of Health issued a fish consumption advisory for Lake Worth in Fort Worth, Texas, because of elevated concentrations of polychlorinated biphenyls (PCBs) in fish.

In response to the advisory and in cooperation with the U.S. Air Force, the U.S. Geological Survey collected 21 surficial sediment samples and three gravity core sediment.

mccarthy and r. gale—investigation of the distribution of organochlorine and polycyclic aromatic hydro-carbon compounds in the lower columbia river using semipermeable-membrane devices—u.s. geological survey wrir. THE ANAEROBIC DEGRADATION OF SELECTED CHLORINATED HYDROCARBON PESTICIDES by David W.

Hill* and Perry L. McCarty Respectively, Doctoral Candidate and Associate Professor of Sanitary Engineering Department of Civil Engineering Stanford University Stanford, California *Now a Research Sanitary Engineer with the Federal Water Pollution.

which are isolated from the ocean Due to its circumpolar distribution, Arctic char has been used as a sentinel species, which has allowed large scale spatial and temporal compar-isons, mainly for mercury−14 The few available published data on POPs in Arctic char are from lakes in Norway,15 Sweden,16 and Greenland,17−19 although a.

Global Contamination Trends of Persistent Organic Chemicals provides comprehensive coverage of spatial and temporal trends of classical and emerging contaminants in aquatic, terrestrial, and marine ecosystems, including the Arctic and Antarctic ecosystems.

Compiled by an international group of experts, this volume covers. Seeks to protect human health from the 12 most toxic chemicals (includes 8 chlorinated hydrocarbon pesticides/DDT can be used for malaria control) Persistent Organic Pollutants (POPs) - A group of persistent, toxic chemicals that bioaccumulate in organisms and can travel thousands of kilometers through air and water to contaminate sites far.

PCBs, and were below 3 pg m −3 in the North and the Norwegian Sea and below 1 pg m −3 in the Greenland Sea and the Arctic Ocean. PCB was detected in ∼80% of the samples and concentrations averaged ∼ pg m −3 in the Norwegian Sea, and ∼ pg m −3 in the Greenland Sea and the Arctic by: The United States has taken strong domestic action to reduce emissions of POPs.

For example, none of the original POPs pesticides listed in the Stockholm Convention is registered for sale and distribution in the United States today and inCongress prohibited the manufacture of PCBs and severely restricted the use of remaining PCB stocks.

Biomagnification, Biomagnification (or bioaccumulation) refers to the ability of living organisms to accumulate certain chemicals to a concentration larger than that Ducks, Ducks Ducks are waterfowl in the order Anseriformes, in the family Anatidae, which also includes geese and swans.

Ducks occur on all continents exce Ddt, DDT (dichloro-diphenyl-trichloroethane) is perhaps. impact on production and distribution of labile and refractory DOM caused by the dramatic changes in the Arctic Ocean.

During the “Impacts of Climate Ecosystems and Chemistry of the Arctic Pacific Environment” (ICESCAPE) research cruise, an under-ice bloom [Arrigo et al., ] was observed concurrent with the increasingCited by: 2.

Author(s) Johnson, A., D. Norton and W. Yake: Description: EPA priority pollutant pesticides and PCBs were analyzed in samples of Columbia River white sturgeon (Acipenser transmontanus), channel catfish (Ictalurus punctatus) and other fish species collected from McNary Pool in and results compared to similar U.S.

Fish and Wildlife Service (USFWS) data for white .E.D.

Description Distribution of chlorinated hydrocarbon pesticides and PCBs in the Arctic Ocean EPUB

Scura and G.H. Theilacker: Food-Chain Transfer of PCB thoroughly mixed and allowed to settle before the hexane-acetone fraction was removed.

The tissue was extracted two more times with ml of hexane; ex- tracts were pooled and washed with ml of distilled water. The solvent-CHC res- idue fraction was separated from the Cited by: DDT (Dichlorodiphenyl-trichloroacetic acid)Dichlorodiphenyl-trichloroacetic acid (or DDT) is a chlorinated hydrocarbon that has been widely used as an insecticide.

DDT is virtually insoluble in water, but is freely soluble in oils and in the fat of organisms. DDT is also persistent in the environment.

The combination of persistence and lipid solubility means that DDT biomagnifies.