Scholarlink

<p>This study was conducted to determine the concentrations of some physicochemical parameters of water and sediment in Lake Tinike during dry and wet seasons as well as some heavy metals in water, sediment, and fish. A laboratory-based study was carried out between January and June 2017, with samples collected from three purposively selected sites. Heavy metal concentrations were determined using Atomic Absorption Spectrophotometry (AAS), while physicochemical parameters, including temperature, pH, total dissolved solids (TDS), and electrical conductivity, were measured using standard procedures. The mean concentrations of copper (Cu), cadmium (Cd), lead (Pb), and manganese (Mn) in water were 0.96 ± 0.02, 0.05 ± 0.003, 0.13 ± 0.07, and 1.00 ± 0.01&#xa0;mg/L, respectively, while in sediments—2.00 ± 0.041, 0.80 ± 0.008, 1.70 ± 0.10, and 1.22 ± 0.10&#xa0;mg/kg; and in fish—2.78 ± 0.034, 0.07 ± 0.001, 1.72 ± 0.02, and 3.46 ± 0.08&#xa0;mg/kg. Fish samples recorded the highest levels of Cu, Pb, and Mn compared to sediments and water. Cd, Pb, and Mn in water slightly exceeded the maximum permissible concentration limits for drinking water, while Cd and Mn in sediments were above permissible levels of concentration. In fish, Pb exceeded permissible limits of concentration, whereas Cu, Cd, and Mn remained within acceptable ranges. Generally, some heavy metal concentrations (Cd, Pb, and Mn) in Lake Tinike were above international safety standards, indicating potential ecological risks and public health concerns for surrounding communities that rely on the lake for water and fish consumption. Therefore, continuous monitoring, strict regulation of pollutant discharges, and public awareness initiatives are strongly recommended to safeguard both environmental and human health in the region.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Heavy metal contamination in water, sediment, and fish from Lake Tinike, eastern Ethiopia: ecological and public health implications

  • 期刊论文

  • 发表日期：

    2026年5月19日

查看全文
  • Yaecob Gebre,
  • Sewnet Mengistu,
  • Sissay Menkir,
  • Endale Teju,
  • Mohammed Kasso

摘要

This study was conducted to determine the concentrations of some physicochemical parameters of water and sediment in Lake Tinike during dry and wet seasons as well as some heavy metals in water, sediment, and fish. A laboratory-based study was carried out between January and June 2017, with samples collected from three purposively selected sites. Heavy metal concentrations were determined using Atomic Absorption Spectrophotometry (AAS), while physicochemical parameters, including temperature, pH, total dissolved solids (TDS), and electrical conductivity, were measured using standard procedures. The mean concentrations of copper (Cu), cadmium (Cd), lead (Pb), and manganese (Mn) in water were 0.96 ± 0.02, 0.05 ± 0.003, 0.13 ± 0.07, and 1.00 ± 0.01 mg/L, respectively, while in sediments—2.00 ± 0.041, 0.80 ± 0.008, 1.70 ± 0.10, and 1.22 ± 0.10 mg/kg; and in fish—2.78 ± 0.034, 0.07 ± 0.001, 1.72 ± 0.02, and 3.46 ± 0.08 mg/kg. Fish samples recorded the highest levels of Cu, Pb, and Mn compared to sediments and water. Cd, Pb, and Mn in water slightly exceeded the maximum permissible concentration limits for drinking water, while Cd and Mn in sediments were above permissible levels of concentration. In fish, Pb exceeded permissible limits of concentration, whereas Cu, Cd, and Mn remained within acceptable ranges. Generally, some heavy metal concentrations (Cd, Pb, and Mn) in Lake Tinike were above international safety standards, indicating potential ecological risks and public health concerns for surrounding communities that rely on the lake for water and fish consumption. Therefore, continuous monitoring, strict regulation of pollutant discharges, and public awareness initiatives are strongly recommended to safeguard both environmental and human health in the region.