In our cities air quality is determined by several seasonal or climatic factor, by vehicular traffic conditions and industrial activity.
In closed environments, due to the reduction of air change rate caused by energy saving policies, the concentration of pollutants can be dozens of times higher than the already polluted outside air.
LABORAD srl does assessments of air quality by extensive monitoring and integrated evaluations over time, using the most advanced technologies in the field.
LABORAD srl has also fixed monitoring stations based on NDIR (nondispersive infrared sensors) technology that ensure a constant protection over time in a totally automatized way and with no need for manteinance. The stations can also be integrated with the ventilation system of the building, allowing significant savings in conditioning and ventilation costs through a controlled air change that avoids unnecessary energy expenses.
THE PROBLEM OF INDOOR AIR QUALITY
Among the several factors that affect the “quality” of the environments in which we live and the safety on workplace, thus affecting people well being, the microclimate and chemical and radioactive (especially due to Radon gas) pollution are of crucial importance.
Some indoor pollutants are linked to the outdoor pollution, but most part of them are produced inside the buildings themselves. Several studies have demonstrated that indoor pollution levels are often higher than outdoor ones, especially for VOC (Volatile Organic Compounds). The building material and furnishing, furniture, carpets, upholstery and adhesives used for their installation, office equipment and several product such as those used for cleaning but also cigarette smoke release VOC in indoor air.
Another important polluting factor for indoor air in building is Radon gas, a radioactive gas released from underground and from building material that causes cancer in human (i.e. lung cancer). The release of alpha particles and their decay in radioactive products such as Polonium inside the lungs causes DNA mutations and favors the onset of cancer: Radon is considered the second cause of lung cancer in Italy, with cigarette smoking being the first one. To measure Radon concentration in a building allows to take action in order to maintain its level within a safe limit for health.
IRRITATING EFFECTS AND ON COMFORT OF INDOOR AIR QUALITY
Among the pathologies caused by the exposure to indoor agents, the most frequent ones are characterized by irritations and neurosensory symptoms that induce sickness, discomfort of the occupants and a negative perception of air quality. Exposuire of skin and mucosas of eye, nose and throath to airborne pollutants can cause irritations in the site of contact.
The main chemical compounds responsible of irritative reactions in nearby environments are formaldehyde and other aldehydes, volatile organic compounds (VOC), substances present in cigarette smoke, and artificial mineral fibers.
The intensity of the response of the organism to the irritative effect depends on some microclimatic factors, such as temperature and humidity. Also artificial mineral fibers, especially glass wool, can be responsible of irritative effects on skin. In some buildings epidemics of dermatitis due to mineral fibers have been observed, especially on occasion of maintenance work on insulating panels or after contamination of air ducts caused by broken pipes and penetration of the insulating material in which they were covered.
For a free evaluation of air quality (air pollution measurement) in houses or workplaces, for making measurements of general pollution or just to verify the safety of your systems (workplace safety, risk evaluation and assessment or safety training), you can contact one of our technicians in the section “Ask the expert”.