Showing papers in "Science of The Total Environment in 1977"

TL;DR: The structure and histogenesis of hair and nails are discussed in relation to mechanisms by which trace elements are incorporated into these tissues and some of the problems involved in analysis are presented.

TL;DR: In this article, the uptake, translocation, and effect of lead and cadmium in corn, soybeans, and several other agronomic species was reviewed, and it was shown that Cadmium is more toxic to both corn and soybeans than is Pb, and that soybeans are more susceptible to both Cd and Pb than is corn.

TL;DR: In this paper, an assessment of the risk from the lead content of street dust was attempted, and measurements were made of the amount of lead in the dust from streets in London.

TL;DR: A core sample from the Western Basin of Lake Erie indicated that ΣDDT, HEOD and PCB began to accumulate in sediments in 1958, 1953, and 1956, which appeared to indicate a lag period of 2–5 years after wide-spread use occurred.

TL;DR: Polishing brings about a loss of the essential elements Zn and Cu, but not of Cd, a toxic pollutant, in rice, which may cause excessive absorption of this toxic metal in countries where rice is a major staple food.

TL;DR: Total mercury and methylmercury values in the tissues of the experimental animals indicated that harp seals can tolerate high levels of mercury in the brain and that the observed renal and hepatic dysfunction were related to the high accumulation of Mercury in these tissues.

TL;DR: The results indicated a possibility of an increase in cadmium in animal tissues depending upon the increased residues of this metal in the environment.

TL;DR: The levels of lead in city street dirt and in soil from various locations in Glasgow were investigated during spring 1976 as mentioned in this paper, and the results showed that lead derived from anti-knock compounds in petrol and introduced to the environment via automobile exhausts was clearly implicated as the main source of lead pollution.

TL;DR: A new book enPDFd surveillance of drinking water quality that can be a new way to explore the knowledge and get one thing to always remember in every reading time, even step by step is shown.

TL;DR: The trace concentrations of a number of metals including chromium, zinc, lead, vanadium and copper have been determined in intertidal sediments from the south bank of the Humber estuary.

TL;DR: In this article, gas chromatography-mass spectrometry with computerized data acquisition was used to detect aliphatic and polyaromatic hydrocarbons, fatty acids and heterocyclic arenes.

TL;DR: Significant regressions were found between water lead and blood lead concentrations and there were in addition increased lead concentrations found in houses using copper piping joined with lead soldered joints.

TL;DR: The paper reviews the application of ozone for the treatment of potable water for the period covered by the review is 1937--1975.

TL;DR: Distribution of polychlorinated biphenyls (PCB) in sewage wastes at a municipal sewage treatment plant was studied, showing that the great bulk of PCBs entering such a treatment plant become adsorbed onto the grit chamber solids and the sludge that is passed from the anaerobic digesters.

TL;DR: In this article, the abundance of tar lumps too small to be sampled by net tows is estimated based on the assumption that there are equal weights of particles in logarithmetically equal size intervals.

TL;DR: The value of using human blood as an indicator of occupational exposure to persistent organochlorine compounds is demonstrated and the average value obtained for the exposed workers is of the same magnitude as the general population in these industrialized countries.

TL;DR: In this article, an analytical method is described for the microcoulometric determination of extractable organic halogen, especially chlorine, in surface waters and sediments, and the results cover the period January 1973 to December 1975.

TL;DR: The trace element composition of stream sediments and waters from eight tributaries in four Cornish catchments have been studied on a seasonal basis as mentioned in this paper, and the average composition of sediment is useful for the prediction of areas where concentrations of potentially toxic elements in waters may exceed recommended limits.

TL;DR: The developments refer to: preparation of labelled metal pollutants with very high specific activity to label in vivo nanogram or subnanogram amounts of pollutant metals; neutron activation analysis of enzymes and nucleic acids with the aim of analyzing concentrations of many metal pollutants in the identified metal binding components of the microsamples.

TL;DR: In this article, a new procedure for the differential analysis of ppb concentrations of Cr(III) and Cr(VI) in natural waters has been developed, and three-liter samples are filtered, acidified to pH 6.0, and divided into three parts.

TL;DR: The use of the cetyltrimethyl-ammoniumbromide-turbidity-dilution technique reveals drastic qualitative changes in the nucleic acid fractions of regenerating sponge cubes.

TL;DR: Evidence is presented, showing that there has been an escalation in dialy fluoride intake via the total human food-and-beverage chain, with the likelihood that this escalation will continue in the future.

TL;DR: Liver hypertrophy was observed in both males and females fed 200 ppm HCB and subjected to food libitum, and food deprivation resulted in a higher plasma, liver, brain and adrenal accumulation of HCB in both male and females.

TL;DR: The application of flameless atomic absorption analysis to the determination of cadmium, copper, and lead in sewage sludges is described, which is sensitive and very rapid, since the normal lengthy sample pre-treatment has been virtually eliminated.

TL;DR: In this paper, a VIS-UV chromatogram analyzer (Farrand) was used for the analysis of polycyclic aromatic hydrocarbons in animal tissue and atmospheric particulate samples with good results.

TL;DR: Values were within the ranges normally observed in the river, suggesting that the dredging operations did not induce a significant PCB pulse of potential hazard to the estuary, and the input of PCB into Puget Sound via the Duwamish River was estimated to be 36 kg/year.

TL;DR: In this article, water quality data from Monongalia County, West Virginia are compared. And the results show that the disturbed areas yield hard water of the calcium-sulfate or calcium-magnesium-sulphate type which is low in pH, high in iron and aluminum, and contains trace elements one or more orders of magnitude greater than water from undisturbed terrain.

TL;DR: The conclusion that emerges is that the observed levels of PCB both in Lake Michigan and the fish biomass are consistent with laboratory measurements, and it will take several years for this ecosystem to cleanse itself of the compounds even if no new input is made.