As Morski writes, the Istrian seawater quality was recently tested at beaches around Istria County. Istria County’s Teaching Institute for Public Health conducted the ninth survey in a row from September the 5th to the 13th, 2022, where the Istrian seawater was sampled at 217 measuring points on the beaches from Savudrija to Brestova.
Air and sea temperatures are also normally recorded during this sort of sampling, and this time the sea temperature ranged from 23.0 ºC to 25.8 ºC, while the air temperature ranged from 17 ºC to 28 ºC.
At 210 measuring points, more specifically in 96.8% of the samples, and based on the individual results of microbiological indicators, the excellent quality of the Istrian seawater for swimming was recorded at 6 measuring points. In 2.8% of the samples taken, good seawater quality was recorded for swimming, and at 1 measuring point, so in a mere 0.5% of the samples taken, only satisfactory quality of the seawater for swimming was recorded.
Pursuant to Article 5 of the appropriate regulation, intestinal enterococci and Escherichia coli are determined in sea samples as microbiological indicators of seawater pollution, and during the sampling procedures, meteorological conditions, sea temperature and salinity, and visible pollution are all also recorded.
Based on the results of testing the microbiological indicators for individual sampling, seawater quality for swimming is classified as excellent and marked with a circular symbol on the map in blue, good quality seawater is marked on the map in green, satisfactory is marked in yellow and unsatisfactory is marked in red.
As part of this regular ninth examination of the quality of the Istrian sewater for swimming, the results of the sampling of microbiological indicators on September the 6th, 2022 showed that at the Porec, Molindrio, Hotel Molindrio (below the hotel) measuring point, the indicators exceeded the limit values, that is, that microbiological pollution was indeed present there.
However, the results of re-sampling done on September the 7th, 2022 showed that the elevated values of microbiological indicators were steadily decreasing, and the microbiological pollution for the aforementioned locations was characterised only in the short-term and therefore not officially included in the report.
Re-sampling carried out on September the 8th, 2022 showed the end of short-term pollution at the specified measuring point, and in the final report, the specified location was rated as good quality.
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