scholarly journals Concentrations of some trace metals in water and sediment of main outfall drain in Al-Nassiriyia city by using pollution indices

2020 ◽  
Author(s):  
Afrah Abid Maktoof ◽  
Zahraa Zahraw ◽  
Majida Ghazi Magtooph
Keyword(s):  
Trace Metals ◽  
Pollution Indices ◽  
Water And Sediment

Assessment of Heavy Metals Content in the Proximity of a Contaminated Site From Cluj-Napoca (Romania)

2020 ◽  
Vol 65 (2) ◽  
pp. 17-37
Author(s):  
Georgiana Grosu ◽  
◽  
Carmen Andreea Roba ◽  
Ramona Bălc ◽  
Maria Lucia Bizău-Cârstea ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Statistical Analysis ◽  
Multivariate Statistical Analysis ◽  
Sediment Contamination ◽  
Contaminated Site ◽  
Pollution Indices ◽  
Chemical Parameters ◽  
Multivariate Statistical ◽  
Water And Sediment ◽  
Physico Chemical

The present study was conducted in the proximity of a contaminated site from Cluj-Napoca city (Cluj County, Romania), where metal processing activities have been carried out for decades. Metal content and physico-chemical parameters were analyzed in soil, water and sediment samples, while organic matter (OM) and total organic carbon (TOC) was additionally analyzed for the soil samples. The sources of heavy metals were evaluated based on multivariate statistical analysis, while the soil and sediment contamination degree was assessed based on specific pollution indices. The calculated indices indicated a significant pollution with Cd and Pb, which may represent a risk if the area would become a residential area. Keywords: heavy metals, contaminated site, soil pollution indices, multivariate statistical analysis, Cluj-Napoca

scholarly journals Evaluation of Trace Elemental Levels as Pollution Indicators in an Abandoned Gold Mine Dump in Ekurhuleni Area, South Africa

2021 ◽  
Author(s):  
Godwin Okereafor ◽  
Mamookho Makhatha ◽  
Lukhanyo Mekuto ◽  
Vuyo Mavumengwana
Keyword(s):  
South Africa ◽  
Trace Metals ◽  
Cation Exchange Capacity ◽  
Major Elements ◽  
Exchange Capacity ◽  
Pollution Indices ◽  
Trace Elemental ◽  
Contamination Levels ◽  
High Degree ◽  
Mine Dump

In the Blesbokspruit area of Ekuhurleni, South Africa, previous gold mining activities resulted in many tailings dump sites. 20 representative soil samples were used in describing the distribution of metals. The soils were very strongly acidic ranging from 3.86 to 4.34 with a low cation exchange capacity (CEC). Based on X-ray fluorescence (XRF) analysis, elemental composition of the soils revealed average values of major elements such as Na2O (0.18%), MgO (0.63%), Al2O3 (6.51%), SiO2 (81.83%), P2O5 (0.04%), SO3 (3.40%), K2O (1.98%), CaO (0.45%), TiO2 (0.51%), Cr2O3 (0.17%), MnO (0.04%), Fe2O3 (3.59%), NiO (0.04%), As2O3 (0.02%), with Rb2O and SrO falling below 0.01%. Trace metals (TM) contamination levels in the soils were evaluated using various pollution indices which revealed that over 60% of the soils were between the high degree and the ultra-high degree of contamination classes. The concentration of various trace metals varies from 860.3–862.6 mg/kg for Cr; 324.9–328.4 mg/kg for Al; 200.9–203.4 mg/kg for As; 130.1–136.2 mg/kg for Fe; 121.9–125.8 mg/kg for Pb; 27.3–30.2 mg/kg for Co; 23.8–26.8 mg/kg for Ni; 7.2–9.2 mg/kg for Ti; 7.1–9.2 mg/kg for Cd; 4.0–5.6 mg/kg for Zn and 0.1–0.6 mg/kg for Cu.

scholarly journals Assessment of Trace Metals Contamination of Surface Water and Sediment: A Case Study of Mvudi River, South Africa

2016 ◽  
Vol 8 (2) ◽  
pp. 135 ◽  
Author(s):  
Joshua Edokpayi ◽  
John Odiyo ◽  
Oluwaseun Popoola ◽  
Titus Msagati
Keyword(s):  
South Africa ◽  
Surface Water ◽  
Trace Metals ◽  
Water And Sediment

scholarly journals Water Quality Assessment of the Nile Delta Lagoons

2020 ◽  
Vol 13 ◽  
pp. 117862212096307
Author(s):  
Karim M Morsy ◽  
Amrit K Mishra ◽  
Mona M Galal
Keyword(s):  
Water Quality ◽  
Trace Metals ◽  
Nile Delta ◽  
Sediment Quality ◽  
Oxygen Demand ◽  
Industrial Effluents ◽  
Water Quality Assessment ◽  
Fish Mortality ◽  
Water And Sediment

Nile Delta Lagoons have been formed 7000 years before the present. The lagoons were aqua-cultural and ecological keystones for the early Egyptian agricultural civilization. The water quality of Nile Delta Lagoons has been deteriorated with the economic development, population rapid increase, and the related industrialization, which exert high pressure on the surrounding environment. The 4 lagoons (1) Maryut, (2) Edku, (3) Burullus, and (4) Manzala are large is surface area, shallow in depth and located on the Nile Delta that receive great amounts of agricultural drainage, sewage, and industrial effluents before discharging into the Mediterranean Sea. The aim of this study is to monitor and assess the water and sediment quality of the lagoons. In light of this assessment, it was found that excessive nutrients are discharged into these lagoons causing severe eutrophication. In addition, relatively low values of dissolved oxygen were recorded causing fish mortality in the lagoons which amplifies in summer as the temperature increases. The article also examined the physical and biological parameters in addition to the chemical concentration of trace metals (Zn, Fe, Pb, Mn, Cr, and Cd) in the water and sediment samples that were collected from the 4 lagoons. High values of biological oxygen demand, chemical oxygen demand, total coliform, fecal coliform, fecal streptococci, ammonia (NH3), total nitrogen, and total phosphorus were recorded. In addition, high concentrations of trace metals were found in the water and sediments of the 4 lagoons.

scholarly journals Levels of trace metals in water and sediment from Tyume River and its effects on an irrigated farmland

Water SA ◽  
2005 ◽  
Vol 31 (1) ◽  
Author(s):  
OR Awofolu ◽  
Z Mbolekwa ◽  
V Mtshemla ◽  
OS Fatoki
Keyword(s):  
Trace Metals ◽  
Water And Sediment

Assessment of Trace Metals in Water and Sediment in a Tropical River Potentially Affected by Land Use Activities in Northern Sarawak, Malaysia

2017 ◽  
Vol 11 (2) ◽  
pp. 99-110 ◽  
Author(s):  
Siong Fong Sim ◽  
Mugilan Rajendran ◽  
Lee Nyanti ◽  
Teck Yee Ling ◽  
Jongkar Grinang ◽  
...  
Keyword(s):  
Land Use ◽  
Trace Metals ◽  
Tropical River ◽  
Water And Sediment

scholarly journals Spatial variation and risk assessment of trace metals in water and sediment of the Mekong Delta

Chemosphere ◽  
2017 ◽  
Vol 179 ◽  
pp. 367-378 ◽  
Author(s):  
Emilie Strady ◽  
Quoc Tuc Dinh ◽  
Julien Némery ◽  
Thanh Nho Nguyen ◽  
Stéphane Guédron ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Trace Metals ◽  
Spatial Variation ◽  
Mekong Delta ◽  
Water And Sediment
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