Lead exposure from routine consumption of coffee and tea from ceramic mugs
My wife does pottery, and makes her own glazes. This is a major concern for potters, and you usually won't see a professional or semi-professional potter use lead in their glazes...Of course, if you're buying on Amazon, who knows.. but you are very, very unlikely to have this problem with people who make pottery for a living (like local artists, or reputable Etsy shops)..