Allergies, asthma ...The onset of diseases such as asthma certainly does not depend on a The only cause but from a set of causes, even a complex interaction between congenital and environmental factors cannot be excluded, but there is no doubt that the domestic environment requires special attention. Our health also depends on the ecosystem created inside the home.
The main pathologies associated with indoor pollution are: allergic diseases, asthma and disorders respiratory in childhood, COPD, respiratory infections (e.g. legionellosis), lung cancer, cardiovascular disease, irritative disorders and impaired comfort (e.g. sick building syndrome). Complex mixtures of indoor pollutants, even at low concentrations, can cause harmful effects on the health of susceptible people over time: children, pregnant women, elderly people, people suffering from asthma, respiratory and cardiovascular diseases. In children, exposure to some indoor pollutants is associated with an increased risk of irritation, acute respiratory symptoms, bronchial hyper-reactivity, respiratory infections and allergic sensitization.
It is estimated that 15% of cases of asthma among children and young people are attributable to smoking by parents, but also the presence of spots of humidity or mold in the room where the child sleeps increases the risk of asthma symptoms.
( Source: the site www.salute. gov.it )
Investigations in Italian schools carried out in the context of European projects have revealed an association between asthmatic symptoms and some most common indoor pollutants. The reduction of indoor exposures in environments frequented by children, , therefore, can help to reduce the frequency of this disease and its evolution towards serious forms. The air quality in school buildings, i.e. that determined by microclimatic comfort conditions and concentrations of some pollutants, is important both for the long exposure time of the children linked to their stay (6-8 hours a day on average), and for the increased susceptibility of children and adolescents to exposure to these environmental factors.
Therefore it is considered an important prevention factor for respiratory and allergic diseases. Several studies have shown a positive association between acute respiratory diseases, asthma, allergies and numerous factors present in the school environment, including humidity, pollutants such as particulate matter, ozone, volatile organic compounds (VOC) , CO2 , formaldehyde and allergens.
( Source : the site www.isprambiente.gov.it )