Scholarlink

<p>This study investigated heavy metal and volatile organic compound contamination in residual dust from inspection bays at two major vehicle licensing offices in Trinidad, West Indies. Surface dust was analyzed for seven heavy metals using flame atomic absorption spectroscopy, while a qualitative screening for volatile organic compounds was achieved using gas chromatography–mass spectrometry. Concentrations of cadmium, chromium, copper, manganese, nickel, lead and zinc ranged from n.d.–1.33&#xa0;µg/g, 9.02–22.64&#xa0;µg/g, 54.34–275.65&#xa0;µg/g, 75.62–346.65&#xa0;µg/g, 13.96–24.15&#xa0;µg/g, 30.88–92.45&#xa0;µg/g and 158.69–358.60&#xa0;µg/g, respectively. Contamination assessments revealed an enrichment of copper, chromium, lead and zinc at the inspection bays which were attributed primarily to specific vehicular-related sources; however, the overall ecological risk was considered low. For adults, the non-cancer risks were negligible, and the potential carcinogenic risks based on exposure to cadmium, chromium and nickel were not significant. The volatile organic compound profiles included alkanes, aromatics, halohydrocarbons, oxygenated volatile organic compounds and olefins, with methylene chloride as the dominant compound at both locations.</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 metals and volatile organic compounds in residual dust at vehicle inspection bays in Trinidad, West Indies

  • 期刊论文

  • 发表日期：

    2026年5月13日

查看全文
  • Daniel Rampersad,
  • Faisal K. Mohammed

摘要

This study investigated heavy metal and volatile organic compound contamination in residual dust from inspection bays at two major vehicle licensing offices in Trinidad, West Indies. Surface dust was analyzed for seven heavy metals using flame atomic absorption spectroscopy, while a qualitative screening for volatile organic compounds was achieved using gas chromatography–mass spectrometry. Concentrations of cadmium, chromium, copper, manganese, nickel, lead and zinc ranged from n.d.–1.33 µg/g, 9.02–22.64 µg/g, 54.34–275.65 µg/g, 75.62–346.65 µg/g, 13.96–24.15 µg/g, 30.88–92.45 µg/g and 158.69–358.60 µg/g, respectively. Contamination assessments revealed an enrichment of copper, chromium, lead and zinc at the inspection bays which were attributed primarily to specific vehicular-related sources; however, the overall ecological risk was considered low. For adults, the non-cancer risks were negligible, and the potential carcinogenic risks based on exposure to cadmium, chromium and nickel were not significant. The volatile organic compound profiles included alkanes, aromatics, halohydrocarbons, oxygenated volatile organic compounds and olefins, with methylene chloride as the dominant compound at both locations.