Scholarlink

<p>The Krishna River, a major perennial river system in India, is vital for regional biodiversity, agriculture, and water supply. This study aimed to investigate the concentrations of nine heavy metals Chromium (Cr), Manganese (Mn), Cobalt (Co), Nickel (Ni), Copper (Cu), Zinc (Zn), Arsenic (As), Cadmium (Cd), and Lead (Pb) in surface water samples collected from three sites along the Krishna River in Telangana, India. Sampling was conducted during four distinct seasons: winter, summer, monsoon, and post-monsoon. Using Inductively Coupled Plasma Mass Spectrometry (ICP-MS), heavy metal concentrations were quantified and analyzed. Results indicate that Cu levels were significantly higher during winter and summer but decreased during the monsoon season, with an overall average of lower concentrations in monsoon compared to other seasons. Despite fluctuations, all heavy metal levels were found within permissible limits according to WHO and FAO standards. The study observed a general reduction in contamination levels over time, which may be attributed to decreased industrial and agricultural activities during the COVID-19 lockdown. Seasonal variations and their impact on heavy metal concentrations underscore the need for continuous monitoring to address and mitigate pollution sources effectively.</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

Temporal variations in heavy metal concentrations in the Krishna river: a comprehensive seasonal assessment

  • 期刊论文

  • 发表日期：

    2025年5月27日

查看全文
  • R. Laxmi,
  • R. Singh,
  • A. Kumar,
  • S. Chander,
  • R. Haldhar,
  • H. Almujibah

摘要

The Krishna River, a major perennial river system in India, is vital for regional biodiversity, agriculture, and water supply. This study aimed to investigate the concentrations of nine heavy metals Chromium (Cr), Manganese (Mn), Cobalt (Co), Nickel (Ni), Copper (Cu), Zinc (Zn), Arsenic (As), Cadmium (Cd), and Lead (Pb) in surface water samples collected from three sites along the Krishna River in Telangana, India. Sampling was conducted during four distinct seasons: winter, summer, monsoon, and post-monsoon. Using Inductively Coupled Plasma Mass Spectrometry (ICP-MS), heavy metal concentrations were quantified and analyzed. Results indicate that Cu levels were significantly higher during winter and summer but decreased during the monsoon season, with an overall average of lower concentrations in monsoon compared to other seasons. Despite fluctuations, all heavy metal levels were found within permissible limits according to WHO and FAO standards. The study observed a general reduction in contamination levels over time, which may be attributed to decreased industrial and agricultural activities during the COVID-19 lockdown. Seasonal variations and their impact on heavy metal concentrations underscore the need for continuous monitoring to address and mitigate pollution sources effectively.