The study, published in the journal Science of the Total Environment, combines analysis of emissions from different types of diesel fuel and exhaust aftertreatment systems and their effects on the cellular patterning of the human olfactory mucosa.
The olfactory mucosa, which is in direct contact with the brain, is exposed to the environment, and the study detected changes in cells at the molecular level when exposed to exhaust gases.
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Source: Ferra

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