Every year there are millions of premature and preventable deaths owing to air indoor and outdoor pollution. Various sources provide differing data, but still there are millions of deaths (between 7 and 9), and 88,000 of these in Italy alone. Diseases that strike all the organs – brain, lungs, heart, and metabolism – and are always traceable to the effects of pollutants, many of which even cross the blood-brain barrier and are therefore neurotoxic. Of particular concern is the impact on the more fragile segments of the population, such as pregnant women and children.