Is Sui Gas is harmful to humans

Fine dust - where it comes from and what it does in people

With the approaching winter, fine dust becomes an issue again, as high levels of fine dust build up with persistent inversion. What measures have to be taken to avoid high concentrations? Is particulate matter really that dangerous to health and why?
According to Prof. Urs Baltensperger from the Paul Scherrer Institute in Villigen, fine dust is not a “new” problem. Even the lungs of the famous “Ötzi” were full of soot - only the “Ötzi” was not so old that the fine dust problem would have affected its lifespan. In Switzerland, the fine dust concentrations have decreased since the start of the measurements up to the year 2000. Since then, they have remained constant and in many places are still above the limit of 20 micrograms per cubic meter of air.
Because of the harmful effects on our health, the fine dust values ​​must be reduced further. Two different strategies must be pursued at the same time: On the one hand, «primary» emissions, i.e. the direct emissions of fine dust particles, must be reduced. And on the other hand, so-called precursor substances, i.e. substances that are only converted into fine dust in the atmosphere, must be reduced. This strategy has a much greater chance of success than “waiting for the EU”, especially in the case of particulate matter episodes, in which most of the particulate matter is homemade due to the low-exchange inversion positions.
Prof. Peter Gehr from the Institute for Anatomy at the University of Bern then focused on the effect of fine dust on our health. In the anatomical atlas by Leonardo da Vinci, it says "Dust is harmful" above the lungs. Today we clearly know that particulate matter can have negative health effects and possibly even increase mortality. The particularly small dust particles with a diameter of less than 100 nanometers (i.e. less than a 10,000th of a millimeter) are called nanoparticles and are particularly dangerous. Why?
After inhaled nanoparticles have been deposited on the inner surface of the lungs, they can penetrate into cells and tissues of the lungs and even into the smallest blood vessels and thus be transported with the bloodstream to other organs.
Air pollution, especially nanoparticles, ozone, nitrogen oxide NO2 and cigarette smoke, can cause inflammatory reactions. This damages cells lining the inner surface of the lungs and even the underlying tissue. Animal experiments have shown that this can lead to pneumonia and, if the particles get into the blood, changes in the blood and in the blood vessels. If the particles get into other organs with the blood, they can cause cell and tissue damage there too.