The Volvo company in its cars has introduced an innovative system of air cleaning in the cabin, which allows to retain 95% of harmful PM 2.5 pollutants. Such high efficiency is due to the ionization of the air flowing inside the car. The air falling into the cabin passes through an element which gives the suspended dust a negative electrostatic charge. On the other hand, the cabin filter has a positive charge and thus attracts electrified particles. In this way, PM 2.5 particles can be caught, which otherwise could pass through common cabin filters. Volvo draws air into the cabin through four vents located on the dashboard. Each of them uses a metal ring with a needle in the center. Ionization takes place using a voltage of 7000V, and the electrified particles go to the cabin filter with the opposite electrostatic charge. Additionally, users can track the concentration of PM2.5 dust on the center display.
Air pollution in Poland
The main source of air pollution in Poland is the combustion of silt, fine dust, garbage and plastics in domestic furnaces. Poisonous smoke is a problem both in towns and villages. We call it 'low emissions', which means that pollutants get into the air from the low chimneys of our homes. The Environmental Protection Law (Art. 379) imposes an obligation on local government to monitor compliance with the provisions in this regard. However, only municipalities with municipal police have an effective enforcement authority. When submitting a notification of the alleged offence, we can refer to the provisions of the Waste Act of 2012. The city guard is obliged to deal with such a report. The act gives the city guard the right to enter the property from 6 am to 10 pm and conduct an inspection. If the polluter is a company, e.g. an industrial plant, the municipal police can also conduct an inspection at night. If there is no city guard in the commune, then the case should be reported to the commune office. Our complaint must be investigated. Then the case is taken over by an official indicated by the commune head or the mayor . However, he does not have the authority of the city guard. He can conduct an inspection, run a check of smoke and ash, but cannot issue a fine. If the smoke or ash test reveals the presence of prohibited compounds, the official is obliged to bring the case to court.