The Distribution of trace metals and fauna in the firth of clyde in relation to the Disposal of Sewage Sludge

1973 ◽  
Vol 53 (3) ◽  
pp. 721-739 ◽  
Author(s):  
W. Halcrow ◽  
D. W. Mackay ◽  
I. Thornton
Keyword(s):  
Trace Metals ◽  
Sewage Sludge ◽  
Trace Metal ◽  
Metal Content ◽  
Demersal Fish ◽  
The United Kingdom ◽  
Sludge Disposal ◽  
Sea Bed ◽  
Trace Metal Content ◽  
Local Background

SummaryTrace metals have been determined in the sediments, waters and fauna of a sewagesludge disposal area in the Firth of Clyde. Enhanced values of organic carbon and several metals were found in the sediments of the immediate deposit area. The results are discussed in relation to local background variations and compared with data from the Solway Firth. Trace-metal concentrations in the waters of the deposit area were higher than those from further off shore in the Clyde.Epifaunal species showed rather erratic variation in trace metal content, unrelated to total or readily extractable trace metals in the underlying sediment. The tracemetal content of demersal fish species was not significantly different from figures reported for elsewhere in the United Kingdom.The distributions of some in-faunal and epifaunal species in the area are described.It is concluded that the effects of sewage sludge disposal in this area are local, gross changes being limited to an area of about 20 km2 of sea-bed. However, little is known of the overall effects of toxic wastes particularly at threshold levels, and further monitoring is required.

scholarly journals Concentrations of Essential Trace Metals in the Brain of Animal Species—A Comparative Study

2020 ◽  
Vol 10 (7) ◽  
pp. 460 ◽  
Author(s):  
Chiara Alessia DeBenedictis ◽  
Andrea Raab ◽  
Ellen Ducie ◽  
Shauna Howley ◽  
Joerg Feldmann ◽  
...  
Keyword(s):  
Nervous System ◽  
Trace Metals ◽  
Trace Metal ◽  
Metal Content ◽  
Brain Size ◽  
Physiological Role ◽  
Physiological Concentration ◽  
Specific Distribution ◽  
Trace Metal Content ◽  
The Brain

The essential trace metals iron, zinc, and copper have a significant physiological role in healthy brain development and function. Especially zinc is important for neurogenesis, synaptogenesis, synaptic transmission and plasticity, and neurite outgrowth. Given the key role of trace metals in many cellular processes, it is important to maintain adequate levels in the brain. However, the physiological concentration of trace metals, and in particular zinc, in the human and animal brain is not well described so far. For example, little is known about the trace metal content of the brain of animals outside the class of mammals. Here, we report the concentration of iron, zinc, and copper in fresh brain tissue of different model-species of the phyla Chordata (vertebrates (mammals, fish)), Annelida, Arthropoda (insects), and Mollusca (snails), using inductively coupled plasma mass-spectrometry (ICP-MS). Our results show that the trace metals are present in the nervous system of all species and that significant differences can be detected between species of different phyla. We further show that a region-specific distribution of metals within the nervous system already exists in earthworms, hinting at a tightly controlled metal distribution. In line with this, the trace metal content of the brain of different species does not simply correlate with brain size. We conclude that although the functional consequences of the controlled metal homeostasis within the brain of many species remains elusive, trace metal biology may not only play an important role in the nervous system of mammals but across the whole animal kingdom.

scholarly journals The Impact of Coastal Geodynamic Processes on the Distribution of Trace Metal Content in Sandy Beach Sediments, South-Eastern Baltic Sea Coast (Lithuania)

2021 ◽  
Vol 11 (3) ◽  
pp. 1106
Author(s):  
Dovilė Karlonienė ◽  
Donatas Pupienis ◽  
Darius Jarmalavičius ◽  
Aira Dubikaltinienė ◽  
Gintautas Žilinskas
Keyword(s):  
Grain Size ◽  
Trace Metals ◽  
Trace Metal ◽  
Metal Content ◽  
Sandy Beach ◽  
Trace Metal Content ◽  
Beach Sediments ◽  
Geodynamic Processes ◽  
Sea Coast ◽  
Eastern Baltic

Sandy coasts are one of the most dynamic spheres; continuously changing due to natural processes (severe weather and rising water levels) and human activities (coastal protection or port construction). Coastal geodynamic processes lead to beach sediment erosion or accumulation. The coast’s dynamic tendencies determine the changes in the volume of beach sediments; grain size; mineralogical; and geochemical composition of sediments. In addition to lithological and mineralogical analysis of sediments, geochemical analysis can provide valuable information about the local and regional patterns of sediment transport, distribution, provenance, and coasts’ conditions. The study aims to assess trace metals’ temporal and spatial distribution determined in the sandy beach sediments along the south-eastern Baltic Sea coast (Lithuania) during 2011–2018. The Lithuanian seacoast is divided into two parts: mainland and spit coast. Our results revealed that the dominant group of elements on the mainland includes Ca–Mg–Mn–Ti and on the Curonian Spit Fe–Pb–As–Co–Cr–Ni–Al, which remain unchanged during the years. The analysis included additional parameters such as beach volume, grain size and sorting, and heavy mineral concentration on the beach. The spatial analysis of trace elements indicated that the trace metal content depends on the coastal processes, but it differs in the mainland and spit sea coast. We identified a higher concentration of trace metals in the erosion-dominated areas in all analysed years on the mainland coast. On the spit coast, the trace metal concentration increased in areas associated with relict coarse sand and where the loading of sediments was active on the beach due to the northward along-shore transport.

Trace metals in cyanobacterial mats, phytoplankton and sediments of the Lake Vanda region, Antarctica

2007 ◽  
Vol 19 (3) ◽  
pp. 311-319 ◽  
Author(s):  
J.G. Webster-Brown ◽  
K.S. Webster
Keyword(s):  
Trace Metals ◽  
Trace Metal ◽  
Metal Binding ◽  
Metal Content ◽  
High Surface ◽  
High Surface Area ◽  
Particulate Material ◽  
Cyanobacterial Mats ◽  
Trace Metal Content ◽  
Sediment Particles

AbstractThe degree and nature of association between trace metals (Cu, Pb, Zn, Ni, Ag, & Cd) and cyanobacterial mats, phytoplankton and sediments has been assessed in the Lake Vanda region of the Wright Valley, Victoria Land. Trace metal:Fe ratios and SEM imaging confirmed that apparent trace metal enrichment in cyanobacterial mats, relative to the sediment beneath, was due to incorporation of fine (sub-micron) sediment particles in the muciligenous matrix of the mat. In suspended particulate material (SPM) filtered from the oxic water of Lake Vanda and the Onyx River, the degree of trace metal binding to the SPM did not appear to correlate with phytoplankton content. Instead a positive correlation was observed between Fe and trace metal content. The SPM at the top of the lake water column, where only the finest sediment remains suspended, had the highest trace metal concentrations. It is concluded that the trace metal content of cyanobacterial mats and phytoplankton samples is primarily due to incorporation of fine sediment particles of high surface area which therefore enhance trace metal adsorption capacity. This reinforces the existing hypothesis that trace metal solubility in this environment is primarily controlled by abiotic processes.

Performance and trace metal content of Crambe and kenaf grown on sewage sludge-treated stripmine land

1982 ◽  
Vol 29 (2) ◽  
pp. 145-161 ◽  
Author(s):  
K.D. Carlson ◽  
R.L. Cunningham ◽  
W.J. Garcia ◽  
M.O. Bagby ◽  
W.F. Kwolek
Keyword(s):  
Sewage Sludge ◽  
Trace Metal ◽  
Metal Content ◽  
Trace Metal Content

scholarly journals Trace Metal Content and Health Risk Assessment of PM10 in an Urban Environment of León, Mexico

Atmosphere ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 573 ◽  
Author(s):  
Julia Griselda Cerón Bretón ◽  
Rosa María Cerón Bretón ◽  
Alberto Antonio Espinosa Guzman ◽  
Claudio Guarnaccia ◽  
Stephanie Martínez Morales ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Trace Metals ◽  
Health Risk ◽  
Trace Metal ◽  
Health Risk Assessment ◽  
Metal Content ◽  
Sampling Site ◽  
Absorption Spectrometry ◽  
Ambient Air ◽  
Trace Metal Content

Trace metal concentrations in PM10 were measured in an urban–industrial site in León, Mexico in three different seasons. PM10 were collected in quartz fiber filters of 47 mm diameter using low volume equipment operating with a controlled flow of 5 L min−1 over 24 h. Mass concentrations were gravimetrically determined and it was found that PM10 samples showed values in excess of the Mexican standard and the established values by WHO during cold dry and warm dry seasons. Morphology of selected particles was studied by SEM-EDS analysis, and the elemental composition was determined. Collected samples were analyzed by atomic absorption spectrometry in order to quantify ambient air concentrations of some trace metals (Cu, Co, Zn, Cd, Fe, Mg, and Mn). Median concentrations of trace metals showed the maximum value for iron (3.079 μgm−3) and the minimum value for Cd (0.050 μgm−3) over the entire period. From the meteorological analysis, it was found that sources located SW and ESE of the sampling site contributed to the levels of trace metals in PM10 in the studied site. The health risk assessment found that the population of León is at increased lifetime risk of experiencing cancer because of exposure to these concentrations of PM10 and their trace metal content.

Trace metal contents in male, non-ovigerous and ovigerous females, and the egg sacs of the marine copepod, Euchaeta concinna Dana, 1849 (Copepoda, Euchaetidae), collected from the southern East China Sea

Crustaceana ◽  
2013 ◽  
Vol 86 (11) ◽  
pp. 1410-1424 ◽  
Author(s):  
Shih-Hui Hsiao ◽  
Tien-Hsi Fang
Keyword(s):  
Trace Metals ◽  
Trace Metal ◽  
East China Sea ◽  
Metal Content ◽  
East China ◽  
China Sea ◽  
Metal Contents ◽  
Trace Metal Content ◽  
Southern East China Sea ◽  
Marine Copepods

Marine copepods have a great ability to accumulate trace metals from seawater. The trace metal content in marine copepods may vary both intra- and inter-specifically. However, the known specific trace metal content of the copepod sexes and according to the ovigerous status of the females is very limited. Copepod samples of Euchaeta concinna Dana, 1849, were collected from the southern East China Sea and separated into four groups: males; non-ovigerous females; ovigerous females without egg sacs, and egg sacs, in order to analyse the trace metal contents (Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn) in these samples. These trace metal contents were found to range between 0.04 and 195.7 μg/g. Zinc, Fe, and Cu were the major components among the trace metals studied and their concentrations generally exceeded 10 μg/g. The trace metal contents in the copepod body generally exceeded the amount in the egg sacs. However, the Cr concentration in the egg sacs was much higher than that in the copepod body, either male or female, and the value ranked as second just behind Zn among the metals studied. The nickel content was also slightly higher in the egg sacs. This study provides the important finding that E. concinna egg sacs contained Cr concentrations out of all proportions to that of the copepod body. Yet, why E. concinna egg sacs contain relatively higher Cr concentrations than the body remains a question to be answered.

Trace-metal content of Mississippi oil field brines

1990 ◽  
Vol 37 (2) ◽  
pp. 171-183 ◽  
Author(s):  
James A. Saunders ◽  
Charles T. Swann
Keyword(s):  
Trace Metal ◽  
Metal Content ◽  
Oil Field ◽  
Trace Metal Content
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