Pedro, your health is yours, so your lack of adverse effects from charcoal grilling doesn't necessarily contradict what has been found for others. Since I have a few serious health problems, I'm not going to engage in dining behavior based on your experience. The risks to health are one thing, but there also evidence that environmental damage results from charcoal grilling. As in all things, it's a matter of individual choices. As a long ago former heavy smoker, I am experiencing the sorry end results of that choice.