Scholarlink

<p>This study investigates lead accumulation in house sparrows (<i>Passer domesticus</i>) to assess urban pollution in Meknes, Morocco. Fifty sparrows were captured from both urban and rural areas, and their organs were analyzed using ICP-AES spectroscopy. The results showed that femur bones had the highest lead concentration, containing 59% of the total lead, with levels reaching 10.82&#xa0;µg/g in the town center. Lead levels were significantly higher in urban areas, with increases ranging from 147.88 to 472.73% compared to rural areas. The Generalized Linear Model (GLM) analysis revealed a significant increase in lead concentrations in the town center (coefficient of 1.5200&#xa0;mg/kg, <i>p</i> &lt; 0.001) and much higher concentrations in bones compared to the liver (coefficient of 4.9996&#xa0;mg/kg, <i>p</i> &lt; 0.001). A strong positive correlation was found between lead levels in the kidneys and bones, indicating a common pattern of lead accumulation. These findings underscore the effectiveness of using house sparrows as bioindicators of urban lead pollution and highlight the need for strategies to mitigate this contamination, particularly in urban environments.</p> Graphical abstract <p></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

Lead bioaccumulation and distribution in house sparrows (Passer domesticus): assessing urban pollution in Meknes, Morocco

  • 期刊论文

  • 发表日期：

    2025年2月24日

查看全文
  • Youssef Haddadi,
  • Abdelkader Chahlaoui,
  • Aziz Taouraout,
  • Imane Ichennarn,
  • Youssef Ouballouk

摘要

This study investigates lead accumulation in house sparrows (Passer domesticus) to assess urban pollution in Meknes, Morocco. Fifty sparrows were captured from both urban and rural areas, and their organs were analyzed using ICP-AES spectroscopy. The results showed that femur bones had the highest lead concentration, containing 59% of the total lead, with levels reaching 10.82 µg/g in the town center. Lead levels were significantly higher in urban areas, with increases ranging from 147.88 to 472.73% compared to rural areas. The Generalized Linear Model (GLM) analysis revealed a significant increase in lead concentrations in the town center (coefficient of 1.5200 mg/kg, p < 0.001) and much higher concentrations in bones compared to the liver (coefficient of 4.9996 mg/kg, p < 0.001). A strong positive correlation was found between lead levels in the kidneys and bones, indicating a common pattern of lead accumulation. These findings underscore the effectiveness of using house sparrows as bioindicators of urban lead pollution and highlight the need for strategies to mitigate this contamination, particularly in urban environments.

Graphical abstract