What reason led to people with respiratory illness move to the american west

An analysis was conducted to determine the Worst Cities for Respiratory Infections to promote  awareness to people concerning  respiratory infections. And according to the surveys conducted, not only did the West region have the least cities on the list of the “The 50 Worst Cities for Respiratory Infections”, but the American West is ranked eight out of the top ten cities wherein physicians noted and recorded the fewest respiratory antibiotic prescriptions for each individual in that area.

a mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.a geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.

i think the reason that they immagrated was to find freedom of religion