Scholarlink

<p>Polycyclic Aromatic Hydrocarbons (PAHs) pose significant risks to human health and ecosystems. Despite extensive research on PAHs, a significant gap exists in understanding their spatial and temporal variability in regions heavily impacted by oil and gas activities. This study addresses this gap by investigating the distribution and risk assessment of PAHs in water and sediment samples collected from upstream, within, and downstream of the Ibelebeiki axis of the Kolo Creek in Ogbia Local Government Area of the Niger Delta region, Nigeria during three remarkable seasons (dry, wet-dry, and wet seasons). Standard methods were used for sample extraction and PAHs analysis was done using GC-FID. The result showed a wide temporal and spatial variability in the distribution of 16 US EPA (United States Environment Protection Agency) PAHs congeners. Naphthalene had the highest concentration in water samples during the three seasons (1.0564&#xa0;mg/L, 1.0109&#xa0;mg/L, and 1.0109&#xa0;mg/L, respectively). Similarly, naphthalene had the highest concentration, with values of 1.9067&#xa0;mg/L, 1.8111&#xa0;mg/L, and 1.9067&#xa0;mg/L respectively, over the three seasons in sediments. The non-carcinogenic health risk assessment for children exceeded acceptable limits in all locations and seasons. In all the locations across the 3 seasons, a hazard index greater than 1 was observed. Carcinogenic risk assessment indicated a significant potential health threat. Principal component analysis (PCA) identified two major anthropogenic sources of PAHs in the study area. This study emphasizes the urgent need for effective pollution control measures to mitigate the adverse impacts of PAHs on human health and the environment.</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

Risk Assessment and Distribution of Polycyclic Aromatic Hydrocarbons in Water and Sediments Along Ibelebiri Axis of Kolo Creek, Ogbia Local Government Area, Niger Delta Region of Nigeria

  • 期刊论文

  • 发表日期：

    2025年1月31日

查看全文
  • Chimere Ezekwe,
  • Chinwe Azuka Onwudiegwu,
  • Stephen Anayo Uzoekwe

摘要

Polycyclic Aromatic Hydrocarbons (PAHs) pose significant risks to human health and ecosystems. Despite extensive research on PAHs, a significant gap exists in understanding their spatial and temporal variability in regions heavily impacted by oil and gas activities. This study addresses this gap by investigating the distribution and risk assessment of PAHs in water and sediment samples collected from upstream, within, and downstream of the Ibelebeiki axis of the Kolo Creek in Ogbia Local Government Area of the Niger Delta region, Nigeria during three remarkable seasons (dry, wet-dry, and wet seasons). Standard methods were used for sample extraction and PAHs analysis was done using GC-FID. The result showed a wide temporal and spatial variability in the distribution of 16 US EPA (United States Environment Protection Agency) PAHs congeners. Naphthalene had the highest concentration in water samples during the three seasons (1.0564 mg/L, 1.0109 mg/L, and 1.0109 mg/L, respectively). Similarly, naphthalene had the highest concentration, with values of 1.9067 mg/L, 1.8111 mg/L, and 1.9067 mg/L respectively, over the three seasons in sediments. The non-carcinogenic health risk assessment for children exceeded acceptable limits in all locations and seasons. In all the locations across the 3 seasons, a hazard index greater than 1 was observed. Carcinogenic risk assessment indicated a significant potential health threat. Principal component analysis (PCA) identified two major anthropogenic sources of PAHs in the study area. This study emphasizes the urgent need for effective pollution control measures to mitigate the adverse impacts of PAHs on human health and the environment.