scholarly journals Contamination Métallique de l'Eau et du Sédiment d'Oued Bouhamra = Metal Contamination of Water and Sediment from Wadi Bouhamra

Author(s):  
Gaël Durand ◽  
Mohamed El Hadi Samar ◽  
Soumeya Khaled-Khodja
2017 ◽  
Vol 8 ◽  
pp. 273-279 ◽  
Author(s):  
Md. Simul Bhuyan ◽  
Muhammad Abu Bakar ◽  
Aysha Akhtar ◽  
M. Belal Hossain ◽  
Mir Mohammad Ali ◽  
...  

2012 ◽  
Vol 69 (6) ◽  
pp. 2013-2025 ◽  
Author(s):  
Seyedeh Belin Tavakoly Sany ◽  
Aishah Salleh ◽  
Abdul Halim Sulaiman ◽  
A. Sasekumar ◽  
Majid Rezayi ◽  
...  

2014 ◽  
Vol 12 (2) ◽  
pp. 109-121 ◽  
Author(s):  
Md Saiful ISLAM ◽  
Shuping HAN ◽  
Md Kawser AHMED ◽  
Shigeki MASUNAGA

2018 ◽  
Vol 8 (1) ◽  
pp. 30-40
Author(s):  
Hui Ping Chai ◽  
Nyanti Lee ◽  
Jongkar Grinang ◽  
Teck Yee Ling ◽  
Siong Fong Sim

This paper reports the heavy metals content in water, sediments and in fish of the Baleh River, in order to evaluate the contamination status of metals. Water and sediment samples were obtained from seven stations located upstream of the Baleh River. Fish species were collected using netting and three species were recorded. Samples were digested and subjected to metal analysis. The findings indicate that there is low risk of metal contamination in water and sediments. Nonetheless some stations were characterized by higher levels of Fe, Al and Mn in water, likely due to accelerated sediment runoff. The acid extractable metal content reported in this study represents the dissolved and weakly-sorbed metals on particulates. For fish, accumulation of heavy metals was found to be more pronounced in the gills, compared to dorsal and ventral muscles. The concentration of Fe, Mn and Al were particularly high in the gills, as these elements were abundant in water. Hg on the other hand was consistently higher in dorsal and ventral muscles. Generally, concentrations of heavy metals in fishes of the Baleh were well within the permissible limit of Food and Agriculture Organization.Keywords: contamination status, metal analysis, Fe, Mn, Al


DEPIK ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 238-242
Author(s):  
Fauziah Fauziah ◽  
Abdullah Abdullah ◽  
Supriatno Supriatno ◽  
Firdus Firdus ◽  
Muhammad Nasir ◽  
...  

Violet Batissa (Batissa violacea) is an important economic organism on the west-south coast of Aceh, because it is relatively high consumed by the community. However, gold mining activities carried out around the watershed are estimated to pollute the river and cause B. violacea to also be affected. The purpose of this study was to determine the level of mercury (Hg) and Lead (Pb) contamination in clam meat in Teunom, Aceh Jaya Regency. The research was conducted from June to September 2021. Sampling of clam was done by purposive sampling method. Hg and Pb were analyzed in clam meat using the Atomic Absorption Spectrophotometer (AAS) method. The results of the analysis showed that the Hg content in clam meat was between 0.12-0.63 mg/kg (mean 0.35±0.26 mg/kg), water 0.0026-0.0103 mg/kg (mean 0.0052±0.004 mg/kg), and sediment 1.3224-3.8767 mg/kg (mean 2.2324±1.427 mg/kg). Furthermore, the results of the analysis showed that the Pb content in clam meat, water and sediment had the same value at 3 stations with values 0.0002±0 mg/kg, 0.0003±0 mg/kg, and 0.0002±0 mg/kg, respectively. The conclusion of this study is that the Hg content in water and sediment has exceeded the threshold, while the clam meat is still in good quality standards. The Pb content in clam meat, water and sediment were also in good quality standards. Based on our study, B. violacea is still safe for consumption, while the water has been polluted and is recommended not to be utilized for human consumption.Keywords:Heavy metalRiverWaterSedimentBatissa violacea


2021 ◽  
Vol 84 (6) ◽  
pp. 1498-1508
Author(s):  
Nazanin Kalani ◽  
Borhan Riazi ◽  
Abdolreza Karbassi ◽  
Faramarz Moattar

Abstract This study aimed to measure and ecologically assess heavy metals, including As, Cr, Pb, Cd, and Ni in water and sediment samples taken from Gomishan, an international wetland located in Golestan, Iran. Four sampling stations were selected to cover all parts of the wetland. The analyses of the heavy metals were performed by ICP-MS. Based on the content of the heavy metals in the sediments, the values of risks for individual heavy metals, as Er, and for total heavy metals, as IR, were estimated. Igeo and EF also presented the soil quality in terms of accumulated contamination. The average content of the heavy metals in water was 23.12, 4.14, 10.04, 6.71, and 94.48 μg/L for As, Cd, Cr, Ni, and Pb, respectively. The heavy metal concentrations in sediments were decreased in the following order: Pb (2130 ppb) > As (655 ppb) > Cr (295 ppb) > Ni (148.8 ppb) > Cd (148.8 ppb). The potential risk values for individual heavy metals were in the low range, Er < 40, except for Cd, which mostly posed a moderate ecological risk. The values of EF and Igeo showed that the sediments sampled from the Gomishan wetland were minimally enriched and contaminated. As the Gomishan wetland has a moderate risk of heavy metal contamination, conservative and monitoring activities should be performed.


2019 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Tri Muji Susantoro ◽  
Ariani Andayani

<strong>Heavy Metal Contamination in the Coastal Area of Tanjung Selor North Kalimantan.</strong> The establishment of the North Kalimantan Province transformed the Tanjung Selor region and its surroundings into the provincial capital so that it will grow rapidly, both in terms of development and other activities. Monitoring environmental conditions, one of which is heavy metals in the waters need to be carried out as a starting environment before the area develops. This is important given the nature of heavy metals that change toxic at concentrations that exceed the threshold. The purpose of this study is to identify the potential for heavy metal contamination in the coastal area of Tanjung Selor, Bulungan Regency, North Kalimantan Province. Heavy metals studied is limiting to mercury (Hg), Chromium (Cr), Arsenic (As), Cadmium (Cd), Copper (Cu), Lead (Pb) and Zinc (Zn). The location of the sampling was carried out using Landsat 8 imagery designed to represent the condition of the coastal area. Samples come from well water, river water, seawater, and marine sediments at 4, 9 and 5 observation stations respectively. Samples were taken on August 2014  using the grab sample method and analyzed for heavy metal content using the standard American Public Health Association (APHA) method with the Atomic Absorption Spectroscopy (AAS) instrument. Of the 23 samples produced, only 3 observation stations were not contaminated with heavy metals. While in the other 20 samples one of three types of heavy metals were found that exceeded the threshold. In general, Cu is the most detected metal exceeding the threshold in the study area found in samples of river water, sea water and sediment. Zn is found to exceed the threshold in well water. Pb is found to exceed the threshold in sample 5 of river water. Cd is found to exceed the threshold in samples of river water, sea water and sediment. The source of pollution is thought to originate from coal mining activities, oil palm plantations, and household waste. The overall results of this study show that river estuaries tend to accumulate heavy metals.


2019 ◽  
Vol 9 (5) ◽  
Author(s):  
Md. Simul Bhuyan ◽  
Muhammad Abu Bakar ◽  
Md. Rashed-Un-Nabi ◽  
Venkatramanan Senapathi ◽  
Sang Yong Chung ◽  
...  

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