Low quality of microplastic studies complicates our understanding of water contamination
In short: A review of fifty studies investigating microplastics in drinking water and freshwater sources found that most research lacks standardized methods. While microplastics are frequently detected in rivers, lakes, and tap water, the researchers found that only four out of fifty studies met all proposed quality criteria for sampling and analysis.
The researchers assessed fifty studies covering river, lake, groundwater, tap, and bottled water to evaluate data quality and summarize plastic types. They found that microplastic concentrations vary wildly across ten orders of magnitude. However, the lack of standardized extraction and identification methods remains a major limitation, making it difficult to accurately assess human health risks.
Why it matters: Improving the quality of microplastic sampling and analysis is essential for accurate human health risk assessments.
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