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结果 151-160 的 233
Sulphur emission from large point sources in Europe
1994
Barrett, M. | Protheroe, R.
Toxic properties of pesticides.
1994
Cheremisinoff N.P. | King J.A.
Pollution control in fertilizer production
1994
Addresses various aspects of pollution control for the mining, production, transportation, and distribution of chemical fertilizers covering technologies for various segments of the industry, including raw materials production, end products, and by-products.
显示更多 [+] 显示较少 [-]Toxic properties of pesticides
1994
Cheremisinoff, Nicholas P. | King, John Allison
This unique resource offers concise, detailed information on the toxicological properties of and safe handling practices for pesticides and provides an overview of the registration process, registration procedures, and supplemental registration. Explaining the interaction between federal and state authorities on toxic chemicals, Toxic Properties of Pesticides gives an alphabetic listing of over 800 chemicals including their applications - from insecticides and growth regulators to herbicides, repellents, and synergists ... examines cancellation and suspension regulations ... furnishes safety guidelines and emergency treatment procedures ... elucidates the signs and symptoms of poisoning ... organizes chemicals according to product name, properties, toxicity, and uses ... supplies a listing of pesticide manufacturers and their addresses ... synthesizes previously uncollected data ... and more.
显示更多 [+] 显示较少 [-]Engineering risk analysis of water pollution
1994
Ganoulis, J.
Water contamination and health
1994
Wang, Rhoda G. M.
This practical reference examines every potential means of exposure to water contaminants, provides in-depth discussion on toxicology, explains the most up-to-date techniques for evaluating human health risk, and develops a methodology for assessing the cumulative absorbed dose of contaminants through all routes of exposure, including ingestion, inhalation, and dermal. | Covering both federal and state efforts to monitor and treat water and discussing water safety regulations, Water Contamination and Health addresses indoor exposure to radon from water sources and exposure to chloroform in swimming pools ... highlights epidemiology, including the need to determine the actual correlation between chemical exposure and human health effects ... emphasizes the internal dose concept using a physiologically based pharmacokinetic model ... furnishes a case study on spontaneous abortion in pregnant women who were exposed to a specific chemical from a contaminated well ... explores the potential existence of carcinogens in water for human consumption ... and much more!
显示更多 [+] 显示较少 [-]Remediation of hazardous waste contaminated soils
1994
Wise, Donald L. (Donald Lee) | Trantolo, Debra J.
This unique, single-source reference offers a thorough treatment of the remediation of soils contaminated by hazardous wastes and the scientific and engineering issues that must be addressed in creating practical solutions for their reclamation. Presenting traditional physical and chemical methods as well as current and emerging biological methods, Remediation of Hazardous Waste Contaminated Soils discusses state-of-the-art techniques of site monitoring and assessment ... demonstrates a wide range of technical approaches that can be used in remediation ... elucidates hydrocarbon remediation ... illustrates actual, in-field remediation processes, highlighting bioremediation ... furnishes innovative process modeling studies ... organizes chapters by issues, case studies, traditional methods, and new technologies to facilitate cross-referencing of topics ... and much more. | Written by more than 50 internationally recognized experts from academia, government, and industry, Remediation of Hazardous Waste Contaminated Soils is an incomparable guide for environmental, pollution control, and chemical engineers; environmental scientists; industrial waste specialists; environmental and patent attorneys; remediation technicians; and upper-level undergraduate and graduate students taking courses in environmental management.
显示更多 [+] 显示较少 [-]The ocean as part of the global carbon cycle
1994
Wolf-Gladrow, D. (Alfred-Wegener-Institut fuer Polar- und Meeresforschung, Bremerhaven (Germany))
The ocean plays a central role in the global carbon cycle being by far the largest active reservoir. Atmospheric CO2 level depends on the CO2 concentration in the ocean surface layer, which is relatively low compared to mean oceanic values due to biological and physical carbon pumps. Although the ocean may take up much of the carbon released by the increased burning of fossil fuels, this capacity is limited because of the chemical buffering and a mismatch in time scales (oceanic mixing is much slower than anthropogenic perturbations).
显示更多 [+] 显示较少 [-]Immunoassay monitoring of polychlorinated biphenyls (PCBs) in the Great Lakes
1994
Richter, C.A. (Michigan State Univ., East Lansing (USA). Dept. of Fisheries and Wildlife. Pesticide Research Center. Inst. for Environmental Toxicology) | Drake, J.B. | Giesy, J.P. | Harrison, R.O.
Although polychlorinated biphenyls (PCBs) are no longer manufactured, they are still entering the environment. In some compartments of the environment, PCB concentrations are a serious concern. This is especially true in compartments which accumulate PCBs, and in food items consumed by humans and wildlife. Also, there are situations in which management decisions require rapid, sensitive, accurate measurements, which can be made in real time under field conditions. Methods to use an enzyme-linked immunosorbent assay (ELISA) for PCBs were developed and applied to sediments and fish muscle homogenates collected from the Great Lakes. The extraction methods developed can be applied in the field with non-hazardous solvents, in the absence of sophisticated laboratory equipment. The method detection limit for PCBs in dimethyl sulfoxide (DMSO) extracts of sediment was 0.9 mg/kg. For PCBs in isopropanol extracts of fish tissue, the method detection limit was 0.6 mg/kg. The resolution of the ELISA was 0.83 mg/kg at 1.1 mg/kg and 1.6 mg/kg at 1.7 mg/kg, for sediment and fish tissue, respectively.
显示更多 [+] 显示较少 [-]Determination of atrazine in rainfall and surface water by enzyme immunoassay
1994
Dankwardt, A. (Technische Univ. Muenchen, Freising (Germany). Lehrstuhl fuer Botanik) | Wuest, S. | Elling, W. | Thurman, M. | Hock, B.
Rainwater and surface water from four sites in Germany (Bavaria and Lower Saxony) were analyzed for atrazine by enzyme immunoassay from June 1990 until October 1992. The limit of quantification of the immunoassay was 0.02 microgram per litre with a middle of the test at 0.2 microgram per litre. About 60% of the samples contained measurable amounts of atrazine. Seasonal trends were observed, with the highest concentration in the summer months of up to 4 microgram per litre for rainwater and up to 15 microgram per litre for surface waters. The highest concentrations were found in agricultural areas, while in the investigated national parks up to 0.56 microgram per litre could be detected in rain warer. This points to long-range atmospheric transport from agricultural areas to pristine national parks. Samples from forest stands usually showed higher atrazine concentrations than samples from open fields. Deposition rates of 10 - 50 microgram per m** (2) per year were observed in the national parks and 10 - 180 microgram per m** (2) per year at the agricultural sites. Comparison of results obtained by enzyme immunoassay and GC/MS showed a good correlation of r = 0.95.
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