Scientific research shows that microplastic contamination is present in sea salt consumed by humans worldwide. The amount of microplastics varies significantly between countries and regions, generally reflecting the level of plastic pollution in surrounding marine environments.
Microplastic Counts (pieces per kg) in Sea Salt by Country
According to data compiled from multiple studies on sea salt samples…
| Country / Region | Approximate Microplastics (pieces/kg) |
|---|---|
| Sri Lanka | ~1,690 pieces/kg |
| China | ~1,500 pieces/kg |
| South Korea | ~1,200 pieces/kg |
| Vietnam | ~900 pieces/kg |
| Thailand | ~700 pieces/kg |
| Bangladesh (average) | ~803 pieces/kg |
| India | ~35–575 pieces/kg |
| (Values are approximate averages from sampled sea salt sources in respective regions.) |
Interpretation and Context
These figures indicate that sea salts produced in regions with higher levels of marine plastic pollution, especially in parts of Asia, tend to contain more microplastic particles. Microplastic contamination in salt is a reflection of broader environmental conditions and plastic waste management practices in each area.
Even after processing, sea salt that derives directly from seawater may retain microplastic particles, raising concerns for consumers about exposure through diet. Awareness of these contamination levels can help individuals make more informed choices about the salts and food ingredients they use.
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