scholarly journals Preliminary Investigation of Microplastic as a Vector for Heavy Metals in Bye-ma Salt Mine, Wukari, Nigeria

2021 ◽  
Author(s):  
HIKON B. N. ◽  
GARY G YEBPELLA ◽  
LAMI JAFIYA ◽  
S. Ayuba
Keyword(s):  
Heavy Metals ◽  
Preliminary Investigation ◽  
Aquatic Organisms ◽  
Polymeric Materials ◽  
Ethylene Vinyl Acetate ◽  
Salt Mine ◽  
Absorption Bands ◽  
Heavy Metals Pollution ◽  
High Level ◽  
Poly Propylene

This study is aimed at the preliminary investigation of microplastics as carrier of heavy metals pollution in surface sediment. Heavy metals concentration was determined by FAAS while microplastics characterization was analysed by ATR-FTIR spectrophotometer. The results obtained showed high level of lead (Pb) concentrations which ranged from 21.37 - 32.80 mg/kg across the sampling sites while Cd has the least concentration between 0.04 - 0.80 mg/kg. The concentration of Pb and Cd were above the USEPA permissible limit in sediment. The following absorption bands; 2978.19, 1728.28 and 1458.23 cm-1 with the functional groups; C-H stretch, C=O stretch and CH2 bend indicates the presence of Ethylene vinyl acetate (EVA) in site S2 and S4 respectively. Other microplastics found in the sampling sites are Nylon, Nitrile, Polycarbonate and Poly propylene. This indicates that there is identical distribution of the microplastics in the sampling sites. The quantities of microplastics isolated ranged from 8.11 - 8.16 g across the sites. Aquatic organisms fed on these polymeric materials because of their unique appearance. Hence, heavy metals adsorption will lead to higher concentrations on microplastics which could be ingested and lead serious complication in their intestine.

scholarly journals Penilaian tingkat pencemaran logam berat dalam sedimen di perairan Pulau Morotai, Maluku Utara

DEPIK ◽  
2015 ◽  
Vol 4 (2) ◽  
Author(s):  
Edward .
Keyword(s):  
Heavy Metals ◽  
Aquatic Organisms ◽  
Pollution Level ◽  
Marine Life ◽  
Recreation Area ◽  
Heavy Metals Pollution ◽  
Low Levels ◽  
Geoaccumulation Indices ◽  
Load Indices ◽  
Base Data

<p><strong><em>Abstract. </em></strong><em>Morotai Waters, located in North of Maluku, has panoramic coastal waters and marine natural beautiful view, and rich of fishery resources, so it is potentially to be developed as a location for recreation area, mariculture, and fisheries industries. For those reasons, the development need a lot of base data, one of the data base is heavy metals. Heavy metals comes from various human activities, both on land and at sea and geological process. Heavy metals in low levels needed by aquatic organisms for the growth and development of its life, but high levels are toxic. Measurement of levels of heavy metals Pb, Cd, Cu, Zn, Ni, and Cr in the sediment in the waters of Morotai was conducted in June 2005. Sediment samples is taken using gravity cores at 13 research stations. The levels of heavy metals were measured using Atomic Absorption Spectrophotometer (AAS). The purpose of this study was to evaluate the contamination and pollution of heavy metals pollution level in Morotai Island waters using CF, I_geo, and PLI. The results of this study show that, based on the value of contamination factors (CF), geoaccumulation indices (I_geo) and pollution load indices (PLI), sediment in this water is include to uncontamination and unpolluted category and is still safe for marine life (CF&lt;0, I_geo&lt;0 and PLI &lt;1).</em></p><p><strong><em>Keywords:</em></strong><em>  Morotai; sediment; heavy metal; pollutions</em></p><p><em> </em></p><p><strong>Abstrak</strong>. Perairan Morotai terletak di Maluku Utara, perairan ini memiliki panorama pantai dan alam laut yang indah, serta kaya akan sumberdaya perikanan, sehingga berpotensi untuk dikembangkan sebagai lokasi  wisata bahari, budidaya, dan industri perikanan. Untuk pengembangan tersebut diperlukan data dasar, salah satu data dasar tersebut adalah data  logam berat. Logam berat berasal dari berbagai aktivitas manusia yang ada di darat maupun di laut, dan proses geologis di alam. Logam berat dalam kadar yang rendah diperlukan oleh organisme perairan untuk pertumbuhan dan perkembangan hidupnya, namun dalam kadar yang tinggi bersifat racun. Pengukuran kadar logam berat Pb, Cd, Cu, Zn, Ni, dan Cr dalam sedimen di perairan Morotai telah dilakukan pada bulan Juni 2005. Contoh sedimen diambil dengan menggunakan gravity core pada 13 stasiun penelitian. Kadar logam berat diukur dengan menggunakan Spektrofotometer Serapan Atom (SSA). Tujuan  penelitian ini adalah untuk menilai tingkat kontaminasi dan tingkat  pencemaran logam berat dalam sedimen di perairan Pulau Morotai dengan menggunakan nilai faktor kontaminasi (CF), indeks geoakumulasi (I_geo) dan indeks beban pencemaran (PLI). Hasilnya menunjukkan berdasarkan nilai CF, I_geo, dan PLI, sedimen di perairan ini termasuk kategori tidak terkontaminasi dan tidak tercemar oleh logam berat Pb, Cd, Cu, Zn, Ni, dan Cr, serta masih aman untuk kehidupan biota laut (CF&lt;0, I_geo&lt;0 dan PLI&lt;1).</p><p><strong>Kata Kunci:</strong> Morotai; sedimen; logam berat; pencemaran </p><h3> </h3>

scholarly journals Heavy Metals in Organs and Tissues of Silver X Bigheads Carp Hybrid as Indices of Anthropogenic Pressure in Areas with a High Level of Urbanization

2021 ◽  
Vol 83 ◽  
pp. 55-68
Author(s):  
Alina A. Makarenko ◽  
Petr G. Shevchenko ◽  
Iryna S. Kononenko ◽  
Vadym M. Kondratyk ◽  
Dmytro S. Khrystenko ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Natural Waters ◽  
Environmental Pollutants ◽  
Aquatic Organisms ◽  
Bighead Carp ◽  
Anthropogenic Pressure ◽  
Functional Features ◽  
The One ◽  
Cadmium And Lead ◽  
High Level

The growth of man-caused load on natural objects, including surface waters, gave impetus to the studying for issue of water pollution in Ukraine by various pollutants. Especially relevant for us are the studies of fishery reservoirs as a direct environment for growing quality aquaculture products. Among the toxic compounds contained in reservoirs, one of the first places is occupied by heavy metals. On the one hand, heavy metals, as pollutants in natural waters, pose a great danger because even in relatively small concentrations they can adversely affect aquatic organisms. On the other hand, in microquantities most heavy metals (except mercury, cadmium and lead) are a natural and even essential component of living cells of aquatic organisms, including fish [17,19].Zn, Mn, Fe, Cu, Pb, Co, Ni, Cd in the organs and tissues of the bighead carphybrid form, which was cultivated in ponds from highly urbanized territory, are distributed heterogeneously and their level of content depends not only on the physical and chemical characteristics of the aquatic environment or this heavy metals biochemical activities force in fish organisms, but also on functional features of concrete organs and tissues of the latter. Results of our investigations showed that above mentioned heavy metals were characterised by high levels of content in the organs and tissues of hybrid silver x bigheadcarp. Highest content in organism of hybrid are lead, cobalt, and cadmium. Highest concentration of heavy metals in our investigations was recorded in gills, because it is the first defence line of fish organism from environmental pollutants.

scholarly journals Shell Growth of Large Benthic Foraminifera under Heavy Metals Pollution: Implications for Geochemical Monitoring of Coastal Environments

2020 ◽  
Vol 17 (10) ◽  
pp. 3741 ◽  
Author(s):  
Nir Ben-Eliahu ◽  
Barak Herut ◽  
Eyal Rahav ◽  
Sigal Abramovich
Keyword(s):  
Heavy Metals ◽  
Shell Growth ◽  
Aquatic Organisms ◽  
Toxicity Tests ◽  
Proof Of Concept ◽  
Large Benthic Foraminifera ◽  
Algal Symbionts ◽  
Ecological Criteria ◽  
Heavy Metals Pollution ◽  
Pollution Events

This study was promoted by the recent efforts using larger benthic foraminiferal (LBF) shells geochemistry for the monitoring of heavy metals (HMs) pollution in the marine environment. The shell itself acts as a recorder of the ambient water chemistry in low to extreme HMs-polluted environments, allowing the monitoring of recent-past pollution events. This concept, known as sclerochronology, requires the addition of new parts (i.e., new shell) even in extreme pollution events. We evaluated the physiological resilience of three LBF species with different shell types and symbionts to enriched concentrations of Cd, Cu, and Pb at levels several folds higher than the ecological criteria maximum concentration (CMC) (165–166, 33–43, 1001–1206 µg L−1, respectively), which is derived from aquatic organisms’ toxicity tests. The physiological response of the holobiont was expressed by growth rates quantified by the addition of new chambers (new shell parts), and by the chlorophyll a of the algal symbionts. The growth rate decrease varied between 0% and 30% compared to the unamended control for all HMs tested, whereas the algal symbionts exhibited a general non-fatal but significant response to Pb and Cu. Our results highlight that shell growth inhibition of LBF is predicted in extreme concentrations of 57 × CMC of Cu and 523 × CMC of Cd, providing a proof of concept for shell geochemistry monitoring, which is currently not used in the regulatory sectors.

Effects of heavy metals pollution on human health

2020 ◽  
Vol 23 (11) ◽  
Author(s):  
Aqeel M. Ali Al-Lami ◽  
Saba Riad Khudhaier ◽  
Omer AbdulKareem Aswad
Keyword(s):  
Heavy Metals ◽  
Human Health ◽  
Metals Pollution ◽  
Heavy Metals Pollution

Heavy metals pollution potentials in the National Iron Ore Mining Company, Itakpe

2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Cyril Ocheri ◽  
A. D. Omah ◽  
C. N. Mbah ◽  
R. E. Njoku ◽  
N. A. Urama ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sea Level ◽  
Toxic Elements ◽  
Iron Ore ◽  
Pollution Potential ◽  
Extraction Techniques ◽  
Mining Company ◽  
Mining Sites ◽  
Metals Pollution ◽  
Heavy Metals Pollution

Heavy metals pollution potential in National Iron Ore Mining Company, Itakpe was investigated. Two mining sites located at the east mining pits such as M3O, which is 370 m above sea level and M2O, which is 350 m above sea level were studied.  Sequential extraction techniques was utilised to examine the distribution effect of the heavy metals pollution potential on the environment. Twelve representative (six-soil, two-sediment, two-plant and two-water) samples were collected, pre-treated and prepared for this study. The atomic absorption spectrometer was used to analyse the concentration of the metals after the sequential and single-stage extractions were determined. Results showed that Chromium, Arsenic, Cadmium and Copper are more bioavailable in the study area than Lead and Iron. This findings indicate that human, animals and plants are exposed to toxic elements (metals and metalloids).

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