As others have written, as no scientific basis for PM 2.5 to be caused by directly by DC fast charging. Information about PM 2.5 is correct. However, the greatest source in California comes from diesel semi trucks, especially around the three main ports of Oakland, Long Beach and Los Angeles. I have listened to hours of individuals and representatives of community groups pleading with the California Air Resources Board to please protect them from this health endangering, Life-Threatening, climate changing source of pollution by requiring the acceleration the of tailpipe free emissions electric vehicles in and out of the ports. Also, we hear about these same detrimental health effects around gas and oil refining facilities. This article is highly irresponsible in continuing to foster false beliefs that the the fossil fuel industry perpetuates to scare people away from making the necessary transition to renewable sources of energy, three to four times more quickly each year than we currently are in order to avoid the worst devastation of climate change that we are already seeing. I believe the author's intent was innocent but faulty in failing research further The real sources of PM 2.5 and if there's any actual validity to this so-called study.