On December 4, thousands of athletes or aspiring athletes invaded the streets of the city for the "Cagliari breathe" half marathon. On the same date, the air quality monitoring station in via Cadello showed a peak of 54 micrograms of PM10 per cubic metre. The limit for fine particles linked to smog, not to be exceeded more than 35 times a year, is 50. " Cagliari was breathing badly that day," sarcastically underlines Angelo Cremone, spokesperson for Clean Sardinia.
Every day it monitors the application of Arpas which allows you to observe what Sardinians inhale. And it reports numerous and daily exceedances of the limits. « The switchboard in via Cadello often switches the indicator to red, which means that the tolerance ceilings have been exceeded . It was the same on December 21st, but also on the 6th, when it reached 65 micrograms per cubic meter ».
A clarification, necessary: the regional agency for the environment specifies that the data published in real time on the system have yet to be validated. But the trend towards high concentrations of Pm10 is always clear in the same areas: in San Gavino, but also in the monitoring station in via Sant'Angelo, in Monserrato. As well as in the usual via Cadello, in Cagliari.
One of the contributing causes, beyond the source of the emissions, could be the almost total absence of wind (read "mistral") which is characterizing this anomalous December, with maximum temperatures well above 20 degrees.
In any case «tell us what is inside these fine particles», is Cremone's appeal, «How much benzene, how much fluorine, how much dioxin, how many hydrocarbons. It's not difficult but it's mandatory. Dust, even inert ones», he explains, «are dangerous, harmful to the human body. Dust, even when neutral, creates scar tissue in our lungs. Imagine if it is composed of heavy metals and carcinogens ».
(Unioneonline/E.Fr.)
