lung cancer and PM2.5

The Journal of the American Medical Association (JAMA) cited a new toxicology study that linked PM2.5 air pollution with the growth of lung cells having “pre-existing oncogenic variants” that could promote lung cancer in mice. Because “the light is better underneath the lamppost,” there is an epidemiologic predilection for ascribing blame to the pollutants for which we have the most data, like PM2.5