Download or read book The Toxicity of Guanidine Nitrate to Freshwater Aquatic Organisms written by W. H. van der Schalie and published by . This book was released on 1985 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The toxicity of guanidine nitrate (GN) to fathead minnows (Pimephales promelas) and water fleas (Daphnia magna) was determined. Based on immobilization of D. magna, the static acute 48 hour EC50 of GN was 70.2 mg/L, with 95 percent confidence limits of 66.0 to 74.7. An initial 21 day flow-through chronic test with D, magna showed that significant toxic effects occurred at the lowest GN concentration tested, 4.2 mg/L. In a second chronic test, statistically significant effects on reproduction (young per female per reproductive day) were found at 6.09 mg/L, but no effects were found at 2.90 mg/L, the next lowest concentration. Fathead minnows exposed to GN in a 35 day early life stage test were much less sensitive than D. magna. Statistically significant effects on survival were noted at 424 mg/L but not at lower concentrations (181 mg/L and below). To allow better evaluation of the potential effects of GN on aquatic communities, more data should be obtained on the toxicity of GN to additional fish, aquatic invertebrate, and aquatic plant species. The effects of water quality parameters on toxicity and the toxicity of significant environmental breakdown products of GN (if any) should also be determined.
Download or read book The Toxicity of Nitroguanidine and Photolyzed Nitroguandine to Freshwater Aquatic Organisms written by and published by . This book was released on 1985 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: The acute toxicity of nitroguanidine (NGu) to ten species of freshwater aquatic organisms was determined. Fish exposed to NGu for 96 hours included fathead minnows (Pimephales promelas), bluegills (Lepomis macrochirus), channel catfish (Ictalurus punctatus), and rainbow trout (Salmo gairdneri). Invertebrates, which were tested for 48 hours, included water fleas (Daphnia magna), amphipods (Hyallela azteca and Gammarus minus), midge larvae (Paratanytarsus dissimili), and aquatic worms (Lumbriculus variegatus). The acute toxicity of NGu was very low; less than 50 percent of any of these organisms exposed to NGu were killed at concentrations up to the solubility limit of NGu in water, which ranged from about 1,700 mg/L at 12 C (trout tests) to about 3,000 mg/L at 22 C (most other species). Complete photolyzation of NGu with ultraviolet light greatly increased NGu toxicity. The toxicity of phi-NGu decreased with time but was still much more toxic than NGu. Originator-supplied keywords include: Acute toxicity, Algae, Amphipod, Aquatic toxicology, Bluegill, Channle catfish, Daphnia magna, Fathead minnow, Fish, Gammarus minus, Hyallela azteca, Ictalurus punctatus, Invertebrates, Lepomis macrochirus, Lumbriculus variegatus, Midge larvae, Nitroguanidine, Oligochaete, Paratanytarsus dissimilis, Pimephales promelas, Photolysis, Rainbow trout, Salmo gairdneri, and Selenastrum capricornutum.
Download or read book Toxicity of Nitroguanidine Nitroglycerin Hexahydro 1 3 5 Trinitro 1 3 5 Triazine RDX and 2 4 6 Trinitrotoluene TNT to Selected Freshwater Aquatic Organisms written by and published by . This book was released on 1993 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of the study was to conduct the necessary toxicity tests to complete the existing data base for deriving U.S. EPA numerical water quality criteria for freshwater organisms exposed to nitroguanidine (NQ), nitroglycerin (NG), hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), and 2,4,6-trinitrotoluene (TNT). A secondary objective of the study was to determine what effect photolysis may have on the toxicity of NQ and RDX. The acute toxicity of NQ was established for the hydra (Hydra littoralis), cladoceran (Ceriodaphnia dubia), rainbow trout (Oncorhynchus mykiss), and fathead minnow (Pimephales promelas). The following NQ chronic tests were performed: 7-d cladoceran, 28-d ELS rainbow trout, and 28-d ELS fathead minnow. Photolyzed NQ was 100-fold more toxic to the cladoceran than the parent compound. NG acute toxicity was determined for the green alga (Selenastrum capriocornutum), hydra, cladoceran, midge (Paratanytarsus parthenogenticus), and fathead minnow. The following chronic tests were conducted with NG: 7-d cladoceran, 60-d ELS rainbow trout, and 28-d ELS fathead minnow. RDX acute toxicity was established for green alga, hydra, midge, cladoceran, and fathead minnow. The following chronic tests were conducted with RDX: 7-d cladoceran, Nitroguanidine, Nitroglycerin, Hexahydro-1,3,5-trinitro-1,3,5-triazine(RDX), 2, 4,6-Trinitrotoluene(TNT), Acute toxicity, chronic toxicity, Photolysis, Selenastrum capricornutum, Lemna minor, Hydra littoralis, Paratanarsus partheno life cycle, and 28-d ELS fathead minnow. genticus, Ceriodaphnia dubia, Pimephales promelas, Oncorhynchus mykiss.
Download or read book Toxicity of Military Unique Compounds in Aquatic Organisms written by and published by . This book was released on 1998 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Energetic Compounds written by Paul L. Marinkas and published by . This book was released on 1996 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume collects the progress in the last decade or two in selected topics within the field of organic energetic compounds. New areas of energetic materials science have achieved prominence, such as molecular orbital calculations, toxicology, biodegradation, and counter-terrorism. The topics selected for discussion in this volume embody the more exciting work in the field which is taking place in laboratories around the world.
Download or read book Acute and Chronic Toxicity of Chlordane to Fish and Invertebrates written by Rick D. Cardwell and published by . This book was released on 1977 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxicity of Common Pollutants to Freshwater Aquatic Life written by M. J. Mallett and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drinking Water Health Advisory written by Welford C. Roberts and published by CRC Press. This book was released on 1992-06-16 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Environmental Protection Agency (U.S. EPA) Office of Water (OW) initiated the Health Advisory Program in 1978 to provide information and guidance to individuals or agencies concerned with potential risk from drinking water contaminants for which no national regulations currently exist. Since that time, over 100 Health Advisories (HAs) have been published in final form for inorganic, organic, and microbial contaminants. This volume contains HAs for munitions chemicals developed as part of a Memorandum of Understanding between the U.S. EPA and the Department of the Army. To develop each HA, the authors reviewed toxicological data for each chemical and presented the relevant studies to allow an evaluation of the data without continued reference to the primary documents. Each HA has undergone critical internal review by the OW Toxicology Review Panel, EPA program offices, the EPA Reference Dose (RfD) Committee, the EPA Carcinogen Risk Assessment and Verification Enterprise (CRAVE) Committee, and the Army Medical Department (for munitions chemicals only). Finally, the HAs were reviewed by an external panel of experts in toxicology and risk assessments. Drinking Water Health Advisory: Munitions will be an important reference document for all DOD/DOE hazardous waste sites, drinking water professionals, and academic libraries.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Cyanides on Aquatic Organisms with Emphasis Upon Freshwater Fishes written by Gerard Leduc and published by . This book was released on 1982 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sublethal Effects of Toxic Chemicals on Aquatic Animals written by J. H. Koeman and published by Elsevier Science & Technology. This book was released on 1975 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current and Selected Bibliographies on Benthic Biology written by and published by . This book was released on 1985 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sittig s Handbook of Pesticides and Agricultural Chemicals written by Stanley A. Greene and published by William Andrew. This book was released on 2013-10-22 with total page 1215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sittig's Handbook of Pesticides and Agricultural Chemicals is specifically designed for use by those engaged in the agricultural and food processing industries, both vital to our nation's health and economy. People in every phase of food production, from the farm to the fork, will find a wealth of material here. It will also be of interest to professionals in the pharmaceutical, cosmetics, and personal care industries who use agricultural products as ingredients. It provides crop, chemical, regulatory, health and safety information on nearly 800 pesticides, fertilizers, and other agricultural chemicals. These chemicals are organized withg unique identifiers so that all who may have contact with or interest in them can find critical information quickly.
Download or read book The Acute and Chronic Toxicity of 3 5 Dinitroaniline 1 3 Dinitrobenzene and 1 3 5 Trinitrobenzene to Freshwater Aquatic Organisms written by and published by . This book was released on 1983 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: The toxicity to freshwater aquatic organisms of three compounds formed during the continuous manufacturing process for 2,4,6-trinitrotoluene (TNT) was determined. The compounds were 1,3-dinitrobenzene (DNB), 3,5- dinitroaniline (DiNA), and 1,3,5-trinitrobenzene (TNB). Four species of fish (fathead minnow, rainbow trout, channel catfish, and bluegill), one aquatic invertebrate (Daphnia magna), and one alga (Selenastrum capricornutum) were tested. Emphasis was on determining the threshold levels of toxicity to the species found to be most sensitive to the test materials.
Download or read book Biological Remediation of Explosive Residues written by Shree Nath Singh and published by Springer Science & Business Media. This book was released on 2013-08-04 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial degradation, Phytoremediation, Remediation, Explosive residues, Biotransformation, Mineralization, Degradative Enzymes, Degradation Pathways, Energetics, Soil contamination, Water contamination.
