Scientists said that a trip on the subway harm, because the air in the subway contains hazardous dust.
The researchers tested several samples of dust on the European subway stations and compared them with other samples, including the wood-burning stoves and road tunnel. As a result it was found that the samples from the metro have a high content of metal particles.
Regular trips to the subway can harm health . Metal-rich dust particles can penetrate into the body tissue and it is dangerous not only for the light, but also for the heart, brain and kidneys.
Coma all this, the station poorly ventilated, they constantly preserved high temperature, creating an ideal environment for accumulation toxic dust .
Particularly dangerous small particles as large dust particles adhere mainly to the trachea and nasal passages, and the small particles reach the bronchioles and small airways, according to experts of the University Southampton .
Researchers possess irrefutable evidence that ultra-fine particles is easy to overcome the barrier of the airway epithelium, and fall into the underlying tissues. This means that at risk may be a liver, brain, kidney and heart - vascular system.
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