Dangerous pigments is old news to painters, and artists in general. Check out the book Artist Beware (Michael McCann). Pigments I used, and still use when I can get them, are the Cadmiums (red, yellow), flake white (lead oxide) and Naples yellow. All very poisonous.

A great influence on me as an artist, and a good friend, died prematurely almost certainly as a result of his exposure to dangerous materials. In his case, asbestos.