Showing papers in "Science of The Total Environment in 1976"

TL;DR: In this article, it is assumed that until the beginning of this century there still existed a natural balance between the production and degradation of polycyclic aromatic hydrocarbons (PAH), which kept the natural background concentration low and fixed.

TL;DR: The survey found that cadmium is accumulated to a surprising extent by most fungi, and the values found and the pattern of accumulation suggest potential uses of fungi in environmental studies.

TL;DR: Analysis of samples of wood taken from different tree rings for lead by atomic absorption spectrometry showed that there was little correlation between the sample site or ring age and air borne lead concentrations, however, the concentration of lead in tree bark at several sites was particularly sensitive to traffic flow at that site.

TL;DR: Results showed that absorption was enhanced to twenty-times control value by diets deficient in minerals and seven-fold by diets of high fat content, whereas high mineral diets have been shown to result in a two-fold reduction in lead absorption.

TL;DR: This study was conducted with initial groups of 100 male and 100 female C3H mice of unspecified initial age, which were each fed heptachlor or heptACHlor epoxide, and a subsequent group of 10 controls of unspecified sex, were used for liver tumor transplant studies.

TL;DR: An investigation into the lead concentrations in dust collected in Birmingham shows relationships are shown to exist between samples from similar areas and the distributions of lead concentrations throughout the City are shown.

TL;DR: The lead contents of two species of mussels collected along the Pacific coast from Piedras Blancas, California to Punta Banda, Baja California were determined by isotope dilution method and the gill tissues of the mussels showed the highest lead concentration.

TL;DR: Preliminary investigation indicates that detectable amounts of organochlorine and mercury residues are capable of crossing the placenta in the harp seal.

TL;DR: The results of the present investigation tend to confirm the findings of other studies indicating an apparently beneficial effect of relatively hard water on cardiovascular parameters, and the concentration of aluminium and vanadium in toenails show interesting trends.

TL;DR: The versatility of some types of modern instrumentation is illustrated in several fields of environmental chemistry and some of the substantial problems are discussed.

TL;DR: A complete chemical analysis revealed the plankton and the rock from which the spring water flowed to contain 54 detectable elements, while the concentrated water had only 53.

TL;DR: In this article, the authors present a picture of HCB contamination in Italy, as seen from experimental data obtained from 1969 to 1974, which refer to samples of surface waters, soils, fauna, cows milk, uncooked and cooked total diets, human fatty tissue.

TL;DR: In a study of fifty-five human milk samples from eastern Pennsylvania, the total DDT derived products exceeded the DDT content of cows milk and canned infant formula.

TL;DR: There was no significant relationship between frequently reported symptoms of the farm workers and depressed cholinesterase levels, and the widespread use of organophosphate pesticides creates the possibility of excessive exposure of migrant farm workers to these compounds.

TL;DR: In this article, the gas chromatographic behavior of bromobiphenyls is described and a number of new compounds have been prepared and characterised, and a thorough insight into the chemistry, analysis and toxicological and biological effects access to pure bromophenyl isomers will be of great value.

TL;DR: Two methods are employed to estimate the association the association of hydrocarbons, sulfur compounds, nitrogen compounds, natural ionizing radiation, and cigarette smoking with some age stratified and disease specific United States mortality rates for white males.

TL;DR: The distribution of cadmium, cobalt, copper, lead, manganese, mercury, nickel and zinc in the sediments of Urr Water, an estuary relatively free of industrial and sewage pollution, has been investigated as mentioned in this paper.

TL;DR: Ozone and diethylhydroxylamine react rapidly at 23°C to give C2H5NO2, CH3CHO, O2, and H2O as major products.

TL;DR: In this paper, the acidity spectrum of rain droplets was measured from four different rains and the results indicated a bi-modal pH spectrum for the individual raindrops, with the smaller mode being located about pH 2.5 to 3 and the larger mode being about pH 4.5.

TL;DR: Hexachlorobutadiene was identified as a component of the residue mixture of chlorinated hydrocarbons in fish from inland waters fed by the Rhine, particularly in the Ketelmeer.

TL;DR: In this paper, the DEHA was used for addition to urban atmospheres to inhibit photochemical smog production in order to reduce the initial rate of C2H4 removal and the initial conversion of NO to NO2 by a factor of 20.

TL;DR: In this article, a simple, inexpensive Astragalus of which two alkanes were readily shown to be the alkanes dimethyl selenide and dimethyl diselenide was found.

TL;DR: In this paper, the triethanolamine-coated crystal was used for SO 2 detection and an instrument capable of utilizing such a detector was constructed. The instrument is designed as a continuous monitor, it can also be used as an intermittent sampler.

TL;DR: The State of the Environment report continues to examine also the conventional arms race, pointing out that the combined military expenditure by developing countries has increased by the rate of ten per cent a year since 1960, taking scarce foreign exchange to build up arsenals, rather than developing the environment of these countries or alleviating the poverty of the people living in these countries.

TL;DR: In this article, a random model is developed to predict the residual volume of oil as a function of elapsed time, initial oil volume and its physical properties, and random environmental factors (wind speed and ambient temperature).

TL;DR: In this article, the 63.3-keV transition from the decay of the first daughter 234Th was measured using a Ge(Li) gamma-ray spectrometer.