Scholarlink

<p>Mercury (Hg) is a global pollutant that poses significant risks to human health and ecosystems. In its dominant atmospheric form, gaseous elemental mercury (GEM), it can travel long distances, contributing to widespread environmental contamination. This study investigates GEM levels in ambient air across urban, suburban, rural, and industrial areas in Peninsular Malaysia using both in situ and continuous measurement methods. Results show GEM concentrations ranging from a minimum of 4.8 to a maximum of 28.9&#xa0;ng&#xa0;m⁻3, with the highest levels observed in industrial areas such as Pasir Gudang (28.9&#xa0;ng&#xa0;m⁻3) and Shah Alam (18.6&#xa0;ng&#xa0;m⁻3). Health risk assessments (HRA), conducted for different age groups, indicated that GEM concentrations were below the threshold for non-carcinogenic health risks (HQ &lt; 1). These findings highlight the urgent need for long-term monitoring to assess mercury pollution and inform Malaysia’s commitment to the Minamata Convention. The study underscores the importance of continuous GEM monitoring to bridge knowledge gaps in mercury’s spatial and temporal distribution, especially in tropical regions.</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

Gaseous Elemental Mercury (GEM) in Ambient Air in Malaysia and its Health Risk Assessment

  • 期刊论文

  • 发表日期：

    2025年2月22日

查看全文
  • Mohd Shahrul Mohd Nadzir,
  • Tan Mei Shin,
  • Alvin Chua,
  • Mohd Zaim Mohd Nor,
  • Muhamad Ikram A. Wahab,
  • Tay Kheng Soo,
  • Mohd Aftar Abu Bakar,
  • Noratiqah Mohd Ariff,
  • Mohd Fadzil Firdzaus Mohd Nor

摘要

Mercury (Hg) is a global pollutant that poses significant risks to human health and ecosystems. In its dominant atmospheric form, gaseous elemental mercury (GEM), it can travel long distances, contributing to widespread environmental contamination. This study investigates GEM levels in ambient air across urban, suburban, rural, and industrial areas in Peninsular Malaysia using both in situ and continuous measurement methods. Results show GEM concentrations ranging from a minimum of 4.8 to a maximum of 28.9 ng m⁻3, with the highest levels observed in industrial areas such as Pasir Gudang (28.9 ng m⁻3) and Shah Alam (18.6 ng m⁻3). Health risk assessments (HRA), conducted for different age groups, indicated that GEM concentrations were below the threshold for non-carcinogenic health risks (HQ < 1). These findings highlight the urgent need for long-term monitoring to assess mercury pollution and inform Malaysia’s commitment to the Minamata Convention. The study underscores the importance of continuous GEM monitoring to bridge knowledge gaps in mercury’s spatial and temporal distribution, especially in tropical regions.