Genetic damage caused by air pollution, can be inherited. This is the conclusion reached by researchers from the Canadian McMaster University (McMaster University), who studied the effect on laboratory animals stay at the steel mill.
All laboratory mice for 10 weeks were about steel plant in special containers. In this case, one group of animals was breathing ambient air, and the other — cleaned using HEPA-filters that do not allow microscopic particles of soot and dust.
The fact that the acquired mutations are inherited, Canadians are more aware of past work. Then they showed that the presence of steel plant near twofold increase in the number of genetic defects do not have the participants of the experiment, and their descendants. However, the work has not been possible to determine what kind of contamination is such mutations. In the latest study, Canadians have shown a link between genetic variations and soot in the air.
Regarding the mechanism of such mutations, the researchers suggest that the soot particles are so small that they are able to penetrate into the blood and then directly into the gonads, where the formation of spermatozoa. However, such a theory must be supported by other studies. Now it is safe to say only that the air filters reduce the number of mutations.
Medical Information Agency