From a survey conducted by Altroconsumo together with the consumer associations of Austria, Belgium, Denmark and Spain, more than two thirds of the samples of mussels, prawns and salt analyzed were contaminated by microplastics. The laboratory analyzes involved 102 samples: 38 of sea salt, 35 of mussels and 29 of shrimps. Of these, as many as 70 contained microplastics, even of different types (film, granules and fibers). In 39 cases it was a presence judged by “significant” experts.
As far as the salt is concerned, the presence of microplastics in significant quantities was detected in 39% of the samples, while traces (ie only some specific particles) were found in 29%. For mussels, the presence was detected in 40% of samples and traces in 31%. Finally, in crustaceans such as shrimp, shrimp and frozen prawns, microplastics were present in 34.5% of samples and traces in 31%.
Among the various products analyzed, mussels were those with a higher percentage of contaminants. If only traces were found in 31% of the samples, in 40% it was a significant presence. This is due to the fact that mussels, such as clams or oysters, are filtering organisms, particularly exposed to contamination because they feed by filtering the water.
Of the 102 samples, 30 were purchased in Italy and Altroconsumo also indicates the name of the producers and sales points, specifying that the indication was diffused reported for transparency “not to advise or advise companies: the problem of microplastics does not depend on how farms are conducted or fishing areas. Molluscs from the same area may or may not be contaminated. Only the analyzes can establish it “.
The survey focused on cooking salt, mussels and crustaceans. No fish were chosen, because the microplastic remain circumscribed to the intestinal tract, which is a part that is normally not consumed.
Compagnia Italiana Sali (CIS), in a statement to Il Fatto Alimentare, responds to the fears raised by the analysis of Altroconsumo, explaining the company “From 2006 periodically analyzes the hydrocarbon index for gas chromatography of all its sea salts. This method makes it possible to verify the rate of compounds with carbon chains, including plastic, which has always been below the limit of 0.5 mg / kg during all measurements. Furthermore, the insoluble sea salt is analyzed regularly. The rate is typically around 0.03% and is essentially small stones and / or fragments of shells, present in the sea that are of identical size or smaller than the salt crystals. No plastic particles were found during the analysis. “