scholarly journals Assessment of Metal Pollution in the Sediments of Ras Al-Ardh and Yacht Club Marinas, Kuwait

2021 ◽  
pp. 1-13
Author(s):  
Amr A. El-Sammak ◽  
Amal F. Alotaibi
Keyword(s):  
Grain Size ◽  
Trace Metals ◽  
Trace Metal ◽  
Sediment Quality ◽  
Contamination Factor ◽  
Distribution Patterns ◽  
Pollution Load Index ◽  
Sediment Grain Size ◽  
Yacht Club ◽  
And Behavior

This study aims to investigate the fate and behavior of five trace metals (Fe, Ni, Pb, Cu and V) in the surface sediments of two selected marinas, namely Ras Al-Ardh and Yacht Club, along the coastal area of Kuwait. Leached and total concentrations of Fe, Ni, Pb, Cu and V were measured along with the total organic carbon (TOC) and sediment grain size. The bioavailability of the trace metals was also determined using simple extraction techniques. The contamination factor (CF), enrichment factor (EF) and pollution load index (PLI) were used for assessing sediment quality at the marinas. The results indicated that TOC was related to the mean grain size, where higher TOC concentrations were associated with finer grain fractions. Trace metal distribution patterns were similar to the TOC in the sediments. The value of PLI showed that the Ras Al-Ardh marina had higher metal enrichment than that of the Yacht Club marina. The results of CF and EF indicated that the sediments within both marinas are "slightly polluted" to "moderately polluted". The sediments were less contaminated with Cu relative to Pb and Ni. The PLI class of metals at the Yacht Club indicated that the marina can be classified as "non-polluted" to "moderately polluted", while the Ras Al-Ardh marina can be classified as "moderately polluted" to "polluted". The study revealed that sediment grain size, TOC, and trace metal concentrations varied spatially within each marina depending on the type of development and the probable source of metals. Sediment quality has changed tremendously due to the expansion of tourism, progress in industrial activities and increase in recreational requirements near the coastal areas.

scholarly journals Analysis of Trace Metal Contamination in Pahang River and Kelantan River, Malaysia

2019 ◽  
Vol 266 ◽  
pp. 04003 ◽  
Author(s):  
Norpadzlihatun Manap ◽  
Kavitha Sandirasegaran ◽  
Noor Shahifah Syahrom ◽  
Amnorzahira Amir
Keyword(s):  
Trace Metals ◽  
Trace Metal ◽  
Metal Contamination ◽  
Sediment Quality ◽  
Primary Objective ◽  
Trace Metal Concentration ◽  
Trace Metal Contamination ◽  
Quality Guidelines ◽  
Fish Samples ◽  
Negative Impacts

The primary objective of this study is to determine trace metal contamination in environmental samples obtained from Pahang River and Kelantan River, Malaysia which may help to identify the risk of sustainable dredging in these areas. This research also proceeds to compare the trace metal concentration with the National Water Quality Standards of Malaysia, Interim Canadian Sediment Quality Guidelines and Malaysian Food Act 1983 to determine its limits and risks. Samples of water, sediment, snails and fishes were collected and analyzed for As, Cu, Cd, Cr, Fe, Pb, Ni, Mn, and Hg by using atomic absorption spectrophotometer. It was found that the concentration of trace metals namely As, Cu, Cd, Cr, Pb, Ni, and Hg in river water, sediment, snail and fish samples in Pahang River were lower than the maximum allowable limits, except for Fe and Mn. In Kelantan River, the concentration of trace metals indicating that it is contaminated with Fe, Mn, Pb, Cr, Cu, Hg, and As as all trace metals exceeded the maximum allowable limits. Negative impacts may arise, and the river may contaminate more in future if there is no proper management to tackle this issue during execution of dredging activities.

scholarly journals Selection of Macroinvertebrate Indices and Metrics for Assessing Sediment Quality in the St. Lawrence River (QC, Canada)

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3335
Author(s):  
Mélanie Desrosiers ◽  
Bernadette Pinel-Alloul ◽  
Charlotte Spilmont
Keyword(s):  
Grain Size ◽  
Organic Contaminants ◽  
Sediment Quality ◽  
Macroinvertebrate Community ◽  
Habitat Characteristics ◽  
Anthropogenic Pressure ◽  
Chemical Contamination ◽  
Sediment Grain Size ◽  
Selection Of ◽  
St Lawrence River

This study aims to evaluate the anthropogenic pressure in the St. Lawrence River by assessing the relationships between composition and chemical contamination of sediments and macroinvertebrate community structure using a selection of indices and metrics. The aims of this study are to (i) determine the composition of macroinvertebrate community in sediments across a gradient of disturbance, (ii) select relevant macroinvertebrate indices and metrics for the assessment of sediment quality, (iii) investigate whether responses of selected indices and metrics differ across habitats and/or sediment quality classes, and finally, (iv) determine the thresholds for critical contaminants related to significant changes in the most relevant indices and metrics. Organic and inorganic contaminants as well as other sediment variables (sediment grain size, total organic carbon, nutrients, etc.) and macroinvertebrate assemblages were determined in 59 sites along the river. Fourteen macroinvertebrate indices and metrics, on the 264 initially selected, were shown to be the most effective to be used in bioassessment for the St. Lawrence River. However, the variation in macroinvertebrate indices and metrics remains strongly explained by habitat characteristics, such as sediment grain size or the level of nutrients. There is also an influence of metals and, to a lesser extent, organic contaminants such as petroleum hydrocarbons. The 14 selected indices and metrics are promising bioassessment tools that are easy to use and interpret in an environmental assessment of sediment quality in the St. Lawrence River.

scholarly journals Distribution of Heavy Metals in Surface Sediments of the Bay of Bengal Coast

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
M. Z. H. Khan ◽  
M. R. Hasan ◽  
M. Khan ◽  
S. Aktar ◽  
K. Fatema
Keyword(s):  
Heavy Metals ◽  
Trace Elements ◽  
Sediment Quality ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Gas Production ◽  
Production Plant ◽  
Marine Sediment Quality ◽  
Bay Of Bengal Coast ◽  
The Impact

The concentrations of major (Si, Al, Ca, Fe, and K) and minor (Cd, Mn, Ni, Pb, U, Zn, Co, Cr, As, Cu, Rb, Sr, and Zr,) elements in the surficial sediments were studied in an attempt to establish their concentration in the Bengal coast. It was revealed that the majority of the trace elements have been introduced into the Bengal marine from the riverine inflows that are also affected by the impact of industrial, ship breaking yard, gas production plant, and urban wastes. The concentration of heavy metals was measured using Atomic Absorption Spectroscopy and Energy Dispersive X-ray fluorescence instruments. The highest concentrations for several trace elements were thus recorded which generally decrease with distance from the coast. It was observed that the heavy metal concentrations in the sediments generally met the criteria of international marine sediment quality. However, both the contamination factor and pollution load index values suggested the elevation of some metals’ concentrations in the region. Constant monitoring of the Bengal coast water quality needs to be recorded with a view to minimizing the risk of health of the population and the detrimental impacts on the aquatic ecosystem.

scholarly journals Sediment Bulk Density Effects on Benthic Macrofauna Burrowing and Bioturbation Behavior

2021 ◽  
Vol 8 ◽  
Author(s):  
Lauren E. Wiesebron ◽  
Natalie Steiner ◽  
Claudia Morys ◽  
Tom Ysebaert ◽  
Tjeerd J. Bouma
Keyword(s):  
Grain Size ◽  
Bulk Density ◽  
Benthic Macrofauna ◽  
Hediste Diversicolor ◽  
Sediment Grain Size ◽  
Sediment Reworking ◽  
Sediment Compaction ◽  
Scrobicularia Plana ◽  
Lower Bulk Density ◽  
And Behavior

Benthic macrofauna are a key component of intertidal ecosystems. Their mobility and behavior determine processes like nutrient cycling and the biogeomorphic development of intertidal flats. Many physical drivers of benthic macrofauna behavior, such as sediment grain size, have been well-studied. However, little is known about how sediment bulk density (a measure of sediment compaction and water content) affects this behavior. We investigated the effect of bulk density on the burrowing rate, burrowing depth, bioturbation activity, and oxygen consumption of bivalves (Limecola balthica, Scrobicularia plana, and Cerastoderma edule) and polychaetes (Hediste diversicolor and Arenicola marina) during a 29-day mesocosm experiment. We compared four sediment treatments consisting of two sediments of differing grain size classes (sandy and muddy) with two bulk densities (compact and soft). Overall, bulk density had a strong effect on benthic macrofauna behavior. Benthic macrofauna burrowed faster and bioturbation more intensely in soft sediments with low bulk density, regardless of grain size. In addition, L. balthica burrowed deeper in low bulk density sediment. Finally, we found that larger bivalves (both C. edule and S. plana) burrowed slower in compact sediment than smaller ones. This study shows that benthic macrofauna change their behavior in subtle but important ways under different sediment bulk densities which could affect animal-sediment interactions and tidal flat biogeomorphology. We conclude that lower bulk density conditions lead to more active macrofaunal movement and sediment reworking.

Geochemical and mineralogical characteristics of beach sediments along the coast between Alanya and Silifke (southern Turkey)

Clay Minerals ◽  
2015 ◽  
Vol 50 (2) ◽  
pp. 233-248 ◽  
Author(s):  
M.G. Yalcin ◽  
M. Setti ◽  
F. Karakaya ◽  
E. Sacchi ◽  
N. Ilbeyli
Keyword(s):  
Grain Size ◽  
Trace Metals ◽  
Trace Metal ◽  
Water Content ◽  
Source Rocks ◽  
Geochemical Data ◽  
Metamorphic Rocks ◽  
Low Grade ◽  
Mineral Phases ◽  
Beach Sands

AbstractThe aim of this work was to determine the distribution of trace metals in the coastal sediments from the area between Silifke and Alanya (Turkey) and to investigate the sources of these elements, based on their mineralogical, petrographical and geochemical characteristics. Forty three samples were analysed for the determination of their water content, grain-size distribution, petrographical features and their chemical and mineralogical compositions. The samples had low water content, in agreement with the large sand grain size.The mineralogical composition reflects the complex geological setting of the area. The most abundant mineral phases are represented by calcite and dolomite, followed by quartz and mica. Chlorite, feldspar and other carbonates are present in lesser amounts, while kaolinite was detected in one sample only. All samples contain hematite, chromite, magnetite and goethite and one sample contained pyrite. Samples with high concentrations of trace metals, contained fragments of metamorphic rocks with pyroxene, amphibole, quartz and feldspar, whereas carbonates and opaque minerals were subordinate. Compared to literature data, the average concentrations of several elements and trace metals were great enough to be considered as possibly toxic, exceeding the Turkish higher acceptable limits. Geochemical data were treated statistically using Principal Component Analysis (PCA) to obtain evidence of their distribution and to identify any correlations.Based on the distribution of mineral phases, the area investigated was divided into different provinces, each characterized by the abundance of one, or more, tracer minerals. In the westernmost areas, between Alanya and Demirtas, the sediments indicate a provenance from dolomites or marbles. In the area between Demirtas and Gazipasa the provenance was from quartzites, clastic and metamorphic rocks and in the sector between Guney and Anamur, the sediments were derived mostly from low-grade metamorphic rocks, in particular metaschists and metabasites. The sediments in the area between Anamur and Ovacik, display variable source rocks and those between Ovacik and Silifke, were derived from limestones and, subordinately, clastic rocks.The trace-metal concentrations in beach sands appear to be related to the abundance of silicate minerals derived from weathering of the metamorphic-rock outcrops in the inland mountainous regions. In contrast, the trace-metal contents of the limestone- and dolomite-bearing beach sands were small.

scholarly journals Assessment of the metal pollution in surface sediments of coastal Tasaul Lake (Romania)

2020 ◽  
Vol 192 (12) ◽  
Author(s):  
Dan Vasiliu ◽  
Andra Bucse ◽  
Naliana Lupascu ◽  
Bogdan Ispas ◽  
Catalin Gheablau ◽  
...  
Keyword(s):  
Metal Contamination ◽  
Surface Sediments ◽  
Heavy Metal Contamination ◽  
Contamination Factor ◽  
Distribution Patterns ◽  
Agricultural Runoff ◽  
Pollution Load Index ◽  
Anthropogenic Sources ◽  
Pollution Indices ◽  
Metal Concentrations

AbstractForty-three surface sediment samples were collected in September 2019 from Tasaul Lake (Black Sea coast, Romania) to examine the metal distribution patterns, assess the level of metal contamination, and identify the pollutant sources. The determined mean metal concentrations were as follows: Al 49,772 mg/kg, Zn 84.40 mg/kg, Cr 83.70 mg/kg, V 76.45 mg/kg, Ni 42.53 mg/kg, Cu 34.27 mg/kg, Pb 26.30 mg/kg, As 12.49 mg/kg, and Hg 0.06 mg/kg. The metals in the surface sediments of Tasaul Lake displayed moderate spatial variation, with higher metal concentrations mainly occurring in the south and southeast (As, Pb, and Hg), southwest (Cu and Zn), and west of the lake (Cr, Ni, and V). Heavy metal contamination in sediments is assessed using pollution indices such as enrichment factor, contamination factor, and pollution load index. The highest CFs and EFs were determined for As (moderate to high pollution), followed by Pb (low to moderate pollution). The Cu, Zn, and Hg pollution indices showed values corresponding to low pollution levels, while Ni, Cr, and V presented the lowest indices, suggesting unpolluted sediments. Multivariate statistical analyses were performed to identify the origin of the analyzed heavy metals. Cr was predominantly sourced from lithogenic components, Ni and V originated from both natural and anthropogenic sources, and As, Cu, Zn, Pb, and Hg showed mainly anthropogenic sources such as agricultural runoff, domestic and industrial wastewater discharges, and quarrying activities.

scholarly journals Chromium Distribution and Spatial Variations in the Finer Sediment Grain Size Fraction and Unfractioned Surficial Sediments on Nyanza Gulf, of Lake Victoria (East Africa)

2016 ◽  
Vol 2016 ◽  
pp. 1-15 ◽  
Author(s):  
Job Mwamburi
Keyword(s):  
Grain Size ◽  
East Africa ◽  
Lake Victoria ◽  
Sediment Quality ◽  
Clay Fraction ◽  
Size Fraction ◽  
Anthropogenic Sources ◽  
Surficial Sediments ◽  
Sediment Grain Size ◽  
Study Results

Surficial sediments collected from the Nyanza Gulf of Lake Victoria (East Africa) were used to determine spatial concentrations of Cr and determine differences in contents of the unfractioned (whole sediment) and the finer grain size sediments, establishing any changes in Cr enrichment and potential ecological risks using sediment quality guidelines. A single pollution index was also used to evaluate level of Cr contamination. The spatial mean Cr contents in the <63 µm (silt-clay) fraction were found to be significantly lower than those in the unfractioned sediments, but with a strong linear positive correlation. The study results show decreasing spatial amounts of Cr in surficial sediments of the Nyanza Gulf, when compared to a study done 20 years earlier. However, the 95% confidence limits of the overall mean Cr in unfractioned sediments exceed the threshold effect concentration (TEC), indicating the potential for Cr remobilization from sediments. In general the sediment enrichment is evidence of possible dominance of lithogenous sources of Cr in the surface lake sediments, with potential anthropogenic sources from the drainage system and nearshore urban areas. The sediments are unpolluted with respect to geoaccumulation index, and sediment enrichment factors suggest a minor to moderate enrichment of Cr in surficial sediments of three sites around the Nyanza Gulf zones and around the river mouth in the main lake.

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.

Spatial and seasonal variations and ecotoxicological significance of sediment trace metal concentrations in Kebir-Rhumel basin (Northeast of Algeria)

2011 ◽  
Vol 64 (8) ◽  
pp. 1759-1766 ◽  
Author(s):  
Leila Sahli ◽  
Fatima-Zohra Afri-Mehennaoui ◽  
Mohamed El Hadef El Okki ◽  
Christian Blaise ◽  
Smail Mehennaoui
Keyword(s):  
Trace Metals ◽  
Trace Metal ◽  
Extreme Values ◽  
Biological Effects ◽  
Sediment Quality ◽  
Aquatic Organisms ◽  
Flame Atomic Absorption ◽  
Probable Effect Level ◽  
Threshold Effect Level ◽  
Effect Level

This study sought to assess sediment contamination by trace metals (cadmium, chromium, cobalt, copper, manganese, nickel, lead and zinc), to localize contaminated sites and to identify environmental risk for aquatic organisms in Wadis of Kebir Rhumel basin in the Northeast of Algeria. Water and surficial sediments (0–5 cm) were sampled in winter, spring, summer and autumn from 37 sites along permanent Wadis of the Kebir Rhumel basin. Sediment trace metal contents were measured by Flame Atomic Absorption Spectroscopy. Trace metals median concentrations in sediments followed a decreasing order: Mn &gt; Zn &gt; Pb &gt; Cr &gt; Cu &gt; Ni &gt; Co &gt; Cd. Extreme values (dry weights) of the trace metals are as follows: 0.6–3.4 μg/g for Cd, 10–216 μg/g for Cr, 9–446 μg/g for Cu, 3–20 μg/g for Co, 105–576 μg/g for Mn, 10–46 μg/g for Ni, 11–167 μg/g for Pb, and 38–641 μg/g for Zn. According to world natural concentrations, all sediments collected were considered as contaminated by one or more elements. Comparing measured concentrations with American guidelines (Threshold Effect Level: TEL and Probable Effect Level: PEL) showed that biological effects could be occasionally observed for cadmium, chromium, lead and nickel levels but frequently observed for copper and zinc levels. Sediment quality was shown to be excellent for cobalt and manganese but medium to bad for cadmium, chromium, copper, lead, nickel and zinc regardless of sites.

scholarly journals Ecological Risk Link to Trace Metals in Waters and Sediments along the Abobo-Doumé Fish Market in Ebrié Lagoon, Côte d’Ivoire

2020 ◽  
pp. 55-67
Author(s):  
Adama Diarrassouba Tuo ◽  
Issiaka Ben Chérif Traoré ◽  
Albert Trokourey
Keyword(s):  
Trace Metals ◽  
Contamination Factor ◽  
Reference Value ◽  
Dry Weight ◽  
Pollution Load Index ◽  
World Health ◽  
Economic Activities ◽  
Fish Market ◽  
Living Organisms ◽  
Health Organization

In coastal waters, trace metals continues to be among global threats due to several harmful effects on living organisms. The present study was conducted along the Abobo-Doumé Fish Market (ADFM) to assess metal contamination due to the lack of data despite the influences of several socio-economic activities. Waters (both surface and bottom layers) and surface sediments samples were collected using respectively a Niskin bottle and a Van Venn Steel, at five stations in April 2006.Trace metals concentrations were determined using the ICP-MS Instrument after proper treatment of each sample. Then, the obtained concentrations were used to calculate several pollution indexes such as Contamination Index (CI), Contamination factor (CF), Pollution Load Index (PLI), Enrichment factor (EF) and Muller’s Index of Geo-accumulation (Igeo) to evaluate the contamination of the selected trace metals in waters and sediments. For water samples, apart from Iron that was not detected in any sample, trace metals were found in respective ranges (in µg/L) of ND-0.2 (As), 0.2-2.0 (Cd), 2.0-20.0 (Hg), ND-1.0 (Mn) and 1.0-390.0 (Pb). According the World Health Organization guidelines values, waters were safe for As, Cd, Fe, and Mn. For Hg, apart from waters closed to the ADFM that exhibited a value of 20.0 µg/L, higher than the reference value of 6.0 µg/L, waters were safe elsewhere. Waters were found contaminated with Pb, particularly in bottom layers, with levels nine to thirty times higher than the reference value of 10.0 µg/L. For sediments, the respective ranges (in mg/kg dry weight) were observed: 2.10-4-1668.48 (As), 2.10-4-7.50 (Cd), 1.95-4554.90 (Fe), 10-4-2.070 (Mn) and 0.001-253.50 (Pb). Highest concentrations of As, Cd and Pb were observed in sediments from several sampling stations, indicating a contamination status of these sediments as confirmed by the calculated pollution indexes. In conclusion, waters along the Abobo-Doumé Fish Market were contaminated in Pb, while sediments exhibited highest concentrations in As, Cd and Pb. This area of the Ebrié Lagoon need attention to the exceeded concentrations of toxic elements (As, Cd and Pb) observed. The present study has provided useful data for future environmental assessment along the Abobo-Doumé Fish Market.

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