Showing papers in "Environmental Pollution Series A, Ecological and Biological in 1980"

TL;DR: The toxicity of secondary waste effluents from textile manufacturing plants was determined with freshwater and estuarine organisms and Daphnia pulex was generally the most sensitive animal, but no animal responded to all wastes.

TL;DR: It is suggested that the feral pigeon may be used both to monitor urban lead contamination and as a model for chronic lead toxicity, in relation to the possible antagonistic role of zinc.

TL;DR: Invertebrate community composition was studied in two streams which drain adjacent basins where conditions were similar in 1840 as mentioned in this paper, and the west branch supported 98 taxa, of which 40 were chironomids.

TL;DR: In this article, a break in an oil pipeline in mid-winter caused oil to travel underground over a distance of about 850 m. Oil contamination and damage to the soil structure due to the clean-up efforts caused serious yield decreases during the next summer.

TL;DR: In this paper, the results from atomic absorption spectrophotometry (aas) showed that lead, cadmium and copper accumulated in these species taken from these sites and only lead seemed to show any significant interspecific variation (p<0.05), amounts being greater in a chlorotica than in L terrestris.

TL;DR: In this paper, the long-term uptake and release of zinc, cadmium, lead and mercury by seaweed Ascophyllum nodosum were studied in situ by transferring whole plants from localities with low, to high, levels of heavy metals in the water and vice versa.

TL;DR: Although the commercial yield of the ozone-treated plants, expressed as hypocotyl dry weight, was significantly reduced, changes in the pattern of development of these plants were observed which were of adaptive value, and later leaves were more resistant to ozone, showing a slower rate of senescence than the cotyledons or first leaves.

TL;DR: The absence of several sensitive effects of acute lead exposure in many urban pigeons with high lead levels indicates that dose-effect relationships obtained under experimental conditions are of limited relevance to free-living organisms.

TL;DR: In this article, the authors investigated the behavior of Cr(VI) in anaerobic and aerobic soils and found that the organic contents of the soils did not differ greatly (0·8−1·0% organic C) and their efficiency in reducing Cr(vi) increased regularly with decreasing pH.

TL;DR: The effects of exposing Lolium multiflorum Lam. to 6·8 pphm (194 μgm −3 ) SO 2 for 20 weeks over winter were investigated as discussed by the authors.

TL;DR: The concentration of lead, cadmium and nickel in air were measured continuously for a 10-month period at sites located at 1·0, 10, 30 and 100 m from a heavily trafficked road in West London as discussed by the authors.

TL;DR: In this article, a comparison was made of the heavy metal concentrations of lead, zinc and calcium in earthworms and soil from pasture near a large lead and zinc smelting plant and a control area 9 km away.

TL;DR: The effects of prolonged artificial applications of sulphur pollutants to a Sphagnum -rich ombrogenous bog surface in North Wales are reported and the extent to which these results support the implication of atmospheric pollution in the Southern Pennine situation is discussed.

TL;DR: Gross production in the ponds treated with 2,4-D was more highly related to planktonic chlorophyll a and dissolved nutrients than in the untreated ponds, and fish growth appeared to be increased by the higher rate of 2, 4-D application.

TL;DR: Among organs, the selenium accumulations in kidney, liver, gall bladder and gill were large, while those in heart, bone and muscle were small, and the biological half-life was about 28 days.

TL;DR: In this article, exposure of tomato Lycopersicon esculentum mill to short-term and long-term (up to 28 days) fumigations of 40 pphm nitric oxide (NO) significantly increased the levels of nitrite reductase activities.

TL;DR: Eggs, larvae and sub-adults of the southern leopard frog Rana sphenocephala were exposed to endrin and toxaphene, following standards that have been used successfully in the study of fish and invertebrates.

TL;DR: Although not high enough to be associated with apparent morbidity, the levels indicate the widespread occurrence of mercury in the highly productiv waters of the cold Humboldt Current, a region considered to be very important as a source of human, as well as avian, food.

TL;DR: Children of Clarias batrachus exposed for 40 days to malathion caused little alteration in its hepatic protein and nucleic acids but a marked decrease in liver glycogen and a significant increase in serum glucose and free amino acid level.

TL;DR: Eggshells of Finnish white-tailed eagles Haliaetus albicilla from the 1970s were 16–19·7% thinner than those laid before 1935 and it is suggested that the decreasing DDE content is the most obvious reason for the increasing productivity because of the improved viability and hatchability of eggs.

TL;DR: The distribution of fish was studied in an upland stream receiving spatially separated pollution by acid drainage from coal stock-piles, suspended solids from a drift mine and ferruginous drainage at neutral pH from an abandoned mine.

TL;DR: A dietary dosage of 25 ppm Aroclor 1254 fed to nine-month-old mallards Anas platyrhynchos for at least a month before egg-laying had no detrimental effect on reproductive success or nest attentiveness when hens were allowed to incubate their own eggs.

TL;DR: In this article, the effects of SO 2 on the gas exchange of red kidney soybeans Phaseolus vulgaris L. (‘red kidney’) were studied under fluctuating SO 2 levels at both high and low humidities.

TL;DR: The thermal resistance of juvenile coho salmon (Oncorhynchus kisutch) and rainbow trout (Salmo gairdneri) sublethally exposed to nickel was subsequently examined by the critical thermal maximum (CTM) method as discussed by the authors.

TL;DR: Cadmium, copper, lead, zinc and manganese concentrations in the marine polychaete Arenicola marina and sediments it inhabits were investigated at 24 sites around the coast of Wales, finding that the highest concentrations were recorded in the upper region of the Bristol Channel.

TL;DR: In this paper, the authors investigated the uptake of 14 C-PCB by mixed species assemblages of estuarine phytoplankton and naturally occurring particulate matter in glass containers in the laboratory and in dialysis culture in Long Island Sound, USA.

TL;DR: In this paper, the authors investigated the effect of various combinations of three acids (HNO3, HCl and H2SO4) or three ammonium salts (NH4NO3 and NH4Cl) on tube elongation in Camellia japonica.

TL;DR: In this paper, the authors draw attention to an important one which has been overlooked, namely the way in which exposure concentrations are defined, and the principles that emerge apply equally to fumigation experiments with other pollutants and on other types of plant.

TL;DR: Radishes, leaf and root growth were consistently reduced when acidity was increased from pH 3·5 to 2·5, and some aspects of the early growth of barley were reduced by sulphite but not by increasing acidity.