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Sunday, August 2, 2020 | History

2 edition of Cadmium and zinc toxicity to Jordanella floridae found in the catalog.

Cadmium and zinc toxicity to Jordanella floridae

Robert L Spehar

Cadmium and zinc toxicity to Jordanella floridae

by Robert L Spehar

  • 320 Want to read
  • 32 Currently reading

Published by Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory, for sale by the National Technical Information Service in Duluth, Minn, Springfield, Va .
Written in English

    Subjects:
  • Cadmium -- Toxicology,
  • Fishes -- United States,
  • Water -- Pollution -- United States,
  • Zinc -- Toxicology

  • Edition Notes

    Statementby Robert L. Spehar
    SeriesResearch reporting series
    ContributionsUnited States. Environmental Protection Agency. Office of Research and Development
    The Physical Object
    Paginationvi, 13 p. :
    Number of Pages13
    ID Numbers
    Open LibraryOL13601217M

    This herbicide mixture was shipped in drums marked with orange stripes (Agent Orange). Keywords: heavy metals, interaction effects, tigriopus fulvus, mixture toxicity Acute 48 h toxicity tests for Cu (, , , , 1 mg/L), Cd (, 1, 2, 4, Chronic toxicity of cadmium and zinc mixtures on flagfish Jordanella floridae.   Commercial production of cadmium ore depends on the mining of zinc (ATSDR ). Cadmium is commercially available as an oxide, chloride, or sulfide. Cadmium metal (Cd 2+) refined from the ore is a silver-white, blue-tinged lustrous heavy metal solid at room temperature (National Toxicology Program [NTP] ).

    9/5/ 2 Bioavailability • Metal bioavailability is a function of water chemistry! • Ca, Na, Mg, DOC and pH are the key drivers for cationic metals (Ag, Al, Cd, Cu, Fe, Ni, Pb, Zn) • Total metal is not a good indicator of toxicity – Exceptions are Al and Fe • Dissolved metal (toxicity. Cadmium is a naturally occurring toxic metal with common exposure in industrial workplaces, plant soils, and from smoking. Due to its low permissible exposure in humans, overexposure may occur even in situations where trace quantities of cadmium are found. Cadmium is used extensively in electroplating, although the nature of the operation does not generally lead to Specialty: Toxicology.

    Zinc. Cadmium sits just beneath zinc in the periodic table of the elements. This means their structures are similar. Cadmium can replace zinc in the tissues and in enzyme binding sites. An important cause of cadmium toxicity other than exposure, is a zinc deficiency.   Mercury (Hg), copper (Cu), cadmium (Cd), and zinc (Zn) are the 4 most common heavy metals. Hg bioaccumulates in organisms, especially in carnivorous fish at high trophic levels of the food chain, and its concentration can become tens of Cited by:


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Cadmium and zinc toxicity to Jordanella floridae by Robert L Spehar Download PDF EPUB FB2

ABSTRACT Cadmium and zinc toxicity to the flagfish (Jordanella floridae) was determined on the basis of hr median lethal concentrations (LC50) and significant decreases (P = in survival, growth, and reproduction over the complete life cycle of the fish.

Cadmium and zinc toxicity to Jordanella floridae. Duluth, Minn.: Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory ; Springfield, Va.: For sale by the National Technical Information Service, Cadmium and zinc toxicity to Jordanella floridae (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type: Internet Resource, Computer File: All Authors / Contributors: R L Spehar; Environmental Research Laboratory (Duluth, Minn.).

Cadmium and zinc toxicity to the flagfish (Jordanella floridae) was determined on the basis of h median lethal concentrations (LC50) and significant decreases (P  = ) in survival, growth, and reproduction over the complete life cycle of the by: Cadmium and zinc toxicity to the flagfish (Jordanella floridae) was determined on the basis of h median lethal concentrations (LC50) and significant decreases (P =.

Cadmium and zinc toxicity to Jordanella floridae / By Robert L. Spehar and United States. Environmental Protection Agency. Topics: Cadmium, Zinc, Water, Fishes. Zinc increases the toxicity of cadmium to aquatic invertebrates.

However, high calcium concentrations in water protect them from cadmium uptake by competing at uptake sites. It is very rare that only one toxic element, at a time, is released into the aquatic ecosystem.

Most of the heavy metals interact with each other and also influenced by otherFile Size: KB. Concerning zinc and calcium, it is assumed that their molecular homology could be a reason for a compensatory higher cadmium resorption.

Foulkes was able to show such a competitive resorption of Cd in an animal model: In rat jejunum, the cadmium uptake was depressed by relatively high concentrations of other polyvalent cations, including Pb, Ni, Cr3+, Cited by: cadmium was released to the environment from human activities in (USPHS ).

Because it is a nondegradable, cumulative pollutant, continued releases are of global concern (ATSDR ; Hutton ; Tjell ). Cadmium Behavior and Toxicity Cadmium and other metals released from mining sites can contaminate drinking and other waterFile Size: KB. The histopathological impact of the sublethal concentrations of zinc, copper and lead on the gonads of Puntius conchonius was evaluated.

Copper (Cu) interfered with spermatogenesis temporarily while zinc (Zn) and lead (Pb) produced dilation in the testicular blood capillaries with necrosis and disintegration of the seminiferous by: Short- and long-term toxicity studies with Cd 2+ (cadmium chloride) were carried out with freshwater organisms of different trophic levels (bacteria, algae, crustaceans, fishes, and amphibians), using mortality, immobilization, respiratory activity, growth, reproduction, development, and histopathological changes as by: The toxicity of zinc (Zn), copper (Cu), and cadmium (Cd) to the nematode Caenorhabditis elegans was characterised under single metal and mixture scenarios at.

Endrin and malathion effects on survival, growth, and reproduction of flagfish were determined in a flow-through system. Endrin chronic effects on first-generation growth and reproduction occurred only at μg/L, the highest concentration tested.

The mean endrin residues in the first-generation fish at 65 days were ab times the water concentration in all Cited by: TOXICOLOGICAL PROFILE FOR CADMIUM. U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES.

Public Health Service. Agency for Toxic Substances and Disease Registry. September CADMIUM ii DISCLAIMER. Use of trade names is for identification only and does not imply endorsement by the Agency for Toxic.

Cadmium is a heavy metal of considerable toxicity with destructive impact on most organ systems. It is widely distributed in humans, the chief sources of contamination being cigarette smoke, welding, and contaminated food and beverages.

Hermanutz, RO () Endrin and malathion toxicity to flagfish (Jordanella floridae). Arch Environ Contain Toxicol – Google Scholar McKim, JM () Evaluation of tests with early life stages of fish for predicting long-term by: Flagfish were exposed to cadmium and zinc as individual metals and as mixtures (‐ μg Cd/liter and ‐ μg Zn/liter) through one complete life cycle in Lake Superior water (45 mg/liter total hardness).Cited by: cadmium (United States Environmental Protection Agency ).

No mayfly toxicity data were used for the devel-opment of water quality criteria for copper or zinc (United States Environmental Protection Agency b; ). The objective of this study was to provide toxicity data for use in developing copper, cadmium and zinc criteria and.

Short-term lethality tests, tests on the d survival of 1-d-old larvae, and a life cycle test showed that used crankcase oil adversely affected the survival and reproduction of the American flagfish, Jordanella -day LC 50 's for juveniles in static and flow-through tests were 36 μL/L and μL/L, respectively, for the water-soluble fraction (wsf) of a 10% oil–water Cited by: Toxicity of Trace Metal Mixtures to American Flagfish (Jordanella floridae) in Soft, Acidic Water and Implications for Cultural Acidification.

Canadian Journal of Fisheries and Aquatic Sciences43 (3), DOI: /fCited by:. A toxicity test with cadmium concentrations ranging from 01 to 0 mg Cd 1−1 was used to assess the effect of cadmium pretreatment on rainbow trout (Salmo gairdneri Richardson) alevins.

The median period of survival for fish pretreated at 001 mg Cd 1−1 was found to be increased at test concentrations up to 10mg Cd 1−1 compared with alevins pretreated with .Cadmium is a heavy metal of considerable toxicity with destructive impact on most organ systems. It is widely distributed in humans, the chief sources of contamination being cigarette smoke, welding, and contaminated food and beverages.

Toxic impacts are discussed and appear to be proportional to body burden of cadmium. Detoxification of cadmium with EDTA and Cited by: David W.

Vardy, Robert Santore, Adam Ryan, John P. Giesy and Markus Hecker, Acute toxicity of copper, lead, cadmium, and zinc to early life stages of white sturgeon (Acipenser transmontanus) in laboratory and Columbia River water, Environmental Science and Pollution Research, /s, 21, 13, (), ().