the ROME – Glyphosate and heavy metals: the city environments are increasingly contaminated. And to say the bees, sentinels of the environmental top notch and the protagonists of an investigation conducted by the department of environmental sciences and technologies of the Alma Mater of Bologna, Conapi, the national consortium of beekeepers. The study, which at the time wants to have a value of only a “demonstration”, was built between 2017 and 2019 in four cities: Turin, Milan, Bologna and Bari, the last year has taken over the Power. Were monitored the hives are placed in urban gardens, measuring both the mortality of the bees each week, the levels of pesticides and heavy metals present in insects and nectar-honey collected in the comb. The data demonstrate that the levels of pollution are increasing in the course of the years, in all four cities.
The results of the survey, which will be presented during a conference held at the Fig tree, was advanced today at a press conference in the regional capital. With regard to pesticides, both in Bologna, both in Turin in 2019 is not never exceeded the critical threshold of bee mortality (125 deaths per week in each hive), but in insects both nectar have been found traces of glyphosate in the sampling done in the fall. In Milan and Bari, instead, the critical threshold has been exceeded, with peaks of 1,500 dead bees a week in the capital of the milanese, and 700 in the apulian city. In all of the drawings were also found residues of glyphosate, both in insects, both in the honey, so much in the collection of the autumn as in the summer. In general, confirmation Claudio shaving horse , a researcher who led the study, in the three years “there has been a crescendo, although the levels of glyphosate are low.”
Worrying is the presence of heavy metals detected in the bees, in their turn, in the increase in the three-year period in the four cities under investigation. In this case, the black mesh goes to Turin and Bari, which in 2019 have recorded values above the reference thresholds in the 55% and 50% of the withdrawals. In Bologna, instead of 37.5% while in Milan of 35%. The metals detected are chromium, nickel, iron and vanadium, which are widely used for the alloys, whereas it is almost absent from the lead. With respect to the 2017, stresses, even shaving horse, “the situation has worsened”: only in Bologna, the data of the heavy metals than the values of the references have skyrocketed from 12.5% to 37.5% of the samples taken.
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