Without going into the merits of the industrial and productive world, it is possible to find in confined environments many sources of polluting substances of different kinds. Here are some examples:
HOUSE
- Sources of metabolic nature: CO2, NH3, odours
- Tobacco smoke: breathable particulate (PM10), carbon monoxide (CO), volatile organic compounds (VOC)
- Gas cookers: NO2, CO
- Wood-burning ovens and chimneys: PM10, CO, polycyclic aromatic hydrocarbons (IPA)
- Materials for constructions: radon and formaldehyde
- Ground below buildings: radon
- Furniture and products for the house: VOC, formaldehyde
- Gas heating: NO2, CO
- Kerosene heating: NO2, CO, SO2
- Insulating: asbestos
- External agents: CO, nitrogen oxide, hydrocarbons, airdispersed particulate
OFFICE
- Sources of metabolic nature: CO2, NH3, odours
- Tobacco smoke: PM10, CO, VOC
- Materials for constructions: VOC, formaldehyde
- Furniture: VOC, formaldehyde
- Photocopiers: VOC
- Air conditioners: biological agents
- External agents: nitrogen oxide, hydrocarbons, airdispersed particulate
TRANSPORTS
- Environment air: ozone in aircraft, CO and hydrocarbons in car
- Air conditioners for car: biological agents
The main polluting substances of indoor environments can be subdivided according to the prevalent origin and they can be classified according to the relation indoor/outdoor; so if it is higher to unit it shows an origin of the polluting substance essentially internal to the confined environment, on the contrary, if it is lower to unit it indicates an origin essentially external.
Thanks to our consolidated experience in the pollution and environment sectors, we want to communicate more and more frequently that previous measures, like the purification of air in confined environments with professional filtration systems, certified and with high efficacy, can guarantee indisputable benefits for the health of people and for the protection of the environment.
