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HEAVY METAL ANALYSIS OF SOIL IN LOCAL WATER SOURCE AREAS IN GWINNETT COUNTY USING ICP-MS

Abstract

Heavy metal contamination in rapidly developing areas poses a significant environmental and public health risk. Gwinnett County, GA experienced notable population growth from 2024 to 2025, increasing the need for environmental monitoring. This study evaluated concentrations of heavy metals in soils from eight sites ranging from parks, residential and recreational areas, and watershed zones within the county. Soil samples were prepared and digested to be analyzed using Inductively Coupled Plasma–Mass Spectrometry (ICP-MS), to detect trace-level concentrations of heavy metals such as lead (Pb), cadmium (Cd), arsenic (As), mercury (Hg), and chromium (Cr). Preliminary findings showed that while most locations fall within acceptable regulatory limits, certain sites exhibit elevated concentrations due to nearby anthropogenic activity. The results provide valuable data for assessing potential exposure risks, identifying possible sources of contamination, and supporting ongoing environmental monitoring efforts in Gwinnett County.

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