Showing papers in "Science of The Total Environment in 1982"

TL;DR: Evidence from the literature shows that not only has growth hormesis been observed in a range of taxa after exposure to a variety of agents, but also that the dose-response data have a consistent form.

TL;DR: The findings strongly suggest that a relationship exists between the pneumoconiosis diagnosed and the occupational exposure to rare-earth dusts calling attention to proposals for maximum permissible concentration limits of occupational Exposure to RE in air.

TL;DR: Both humic acid and fulvic acid obtained from leaf mould and river sediment methylate inorganic mercury as mentioned in this paper, and lower molecular weight compounds were most active in this methylation.

TL;DR: Applying reliable sampling methods and the voltammetric determination procedure in particular suitable for heavy metals at the trace level, significant contributions to a consistent data basis for the distribution of heavy metals in the sea could be achieved.

TL;DR: In this paper, a number of Los Angeles aerosol samples, collected on quartz filters, were analyzed by thermal (effluent gas) analysis, which involves heating the sample at a predetermined termperature rate in oxygen, and the evolved gases are passed over a copper oxide catalyst to assure their complete conversion to carbon dioxide, which is detected by a nondispersive infrared carbon dioxide analyzer.

TL;DR: It is concluded that only the series "prehistorical Teutons" may be exposed to levels which are relevant to postmortem changes and the present body burden for lead in germany is about 20 times greater than this "physiological zero point".

TL;DR: In this article, the introduction of organic micropollutants into the hydrological cycle is considered in terms of both point and non-point source discharges and individual industrial and domestic sources of particular classes of organic chemicals are assessed.

TL;DR: The accumulation of arsenic with time in tissues of rats and rabbits was determined by neutron activation analysis (NAA).

TL;DR: In this paper, a comparison of the Cd, Hg and Pb contents of Aster and Salicornia, both highly in demand as vegetables by local people, with standard values accepted for green vegetables in the F.R.G. and the Netherlands was made.

TL;DR: It is suggested that the accumulation of Cd, Pb, and Zn is due to a slow irreversible uptake or to the existence of more binding sites in old leaves to be explained by translocation within the plant, dilution due to growth or leakage from the older leaves.

TL;DR: In this article, the influence of aquatic humus with time on low concentrations of alkanes, polycyclic aromatic hydrocarbons (PAH), and chlorinated Hydrocarbons have been investigated.

TL;DR: It is apparent that sublethal levels of PCB have a detrimental effect on the physiology of the Atlantic cod.

TL;DR: The concentrations of total selenium and total mercury in the muscle of striped mullet from four stations in the Northern Tyrrhenian Sea and one in the Black Sea were analyzed and suggested that Se-Hg receptors exist and increase with the age of the animal.

TL;DR: Proposals to burn more coal for energy are discussed in relation to the mercury released from it, the mercury already present in the environment which is constantly being revaporized and redistributed, and the mercury washed out of the atmosphere into permanent sinks such as marine sediments.

TL;DR: Aerial fallout around a nickel smelter in the Niagara Peninsula over the past 60 years resulted in accumulations of between 500 and 1500 mg/kg Ni in mineral soils within a 3 km quadrant; to the NE-SE direction.

TL;DR: The marked relation existing between dietary intake and milk content of trace elements is confirmed by the finding that Cs concentration in diet, fresh waters and human milk samples from Latium were one to two orders of magnitude higher than those measured in a small town in the south of Italy.

TL;DR: No distinct trend for the interrelationship between water and tissue elemental concentrations could be established for the regions around Cairo, Aswan and Alexandria.

TL;DR: The lead and nickel content of 179 human milk samples has been determined by atomic absorption spectroscopy (lead) and inductively-coupled plasma emission spectropscopy (nickel).

TL;DR: Concentrations of Co, Cu, Fe, Hg, Mn, Sb, Se and Zn in IAEA milk (dry) standard A-11 were re-evaluated with the help of instrumental and radiochemical neutron activation analysis (NAA).

TL;DR: The argon supported inductively coupled plasma--atomic emission spectrometer (ICP--AES) is found to be an attractive analytical tool for the simultaneous multi-element determination of major, minor and trace elements in human liver and kidney specimens.

TL;DR: Application of pattern recognition methods to the elemental data illustrates the wide scatter of points, corresponding to samples from an industrial area, compared to the tight clustering of samples from other parts of the city.

TL;DR: The levels in hair and serum of patients with cardiovascular disease were significantly low (P less than 0.05), and it was noted that there was no correlation between Se in hair or serum of the same individuals; further work is necessary to shed more light on these relationships.

TL;DR: Oxidized nitrogen distribution is discussed in terms of the daily patterns of nitrogen pollutant concentrations, the fractional conversion of NOx to products and the diurnal profile of the conversion fraction, and lastly, the contribution of the individual compounds to the overall oxidized nitrogen burden.

TL;DR: Covariances between lead and Mutagenicity, and the varying distribution of the polar and non-polar mutagens at the stations, indicate that at all stations the mutagenicity of the non-Polar extract is dominated by automobile exhaust products.

TL;DR: The findings suggest the existence of a metal contamination of soils in the industrial area of Bari in Apulia, with average levels of Hg, Cd, Cu, Mn, Ni, Pb, Se, Sn, and Zn higher than the mean levels in rural soils and the common ranges known for world soils.

TL;DR: A critical analysis of various aspects of TAP such as regulatory controls, sources, atmospheric concentrations and health impacts is provided.

TL;DR: In this article, the results were compared to those predicted on the basis of thermodynamic data for the HONO 2 + NH 3 + NH 4 NO 3 (s) equilibrium, showing good agreement between measured nitrate values and those expected from comparison of measured and equilibrium nitric acid concentrations.

TL;DR: Analysis of cancer mortality in whites has revealed a significant excess in both males and females in an old lead/zinc mining and smelting area, which consists of three rural contiguous counties.

TL;DR: Findings of this study suggest that changes in hair arsenic levels during infancy are related to the introduction of cereals in the diet.

TL;DR: In this paper, the selenium content in rye-grass grown on different soil types was between 0.05 and 0.11 ppm, and positively correlated with the soil level.