I am wondering about the health aspects of black boards and white boards.
Black boards have now been around for centuries. Their only detrimental health effect is the chalk dust. Some senior colleagues tell me that they are having breathing issues after several years of teaching. Then again, it's just chalk, which is chemically fairly well-understood.
White boards are a rather recent fad in academia. They do not -seem- to produce dust as much as blackboards, but nevertheless there is a mess over time with ink dripping down onto the floor, and you need replace the erasers regularly. Last but not least, I have no clue about the ink used in those pens and their health effects.
Do you have practical advice how to handle black boards and white boards, and do you know about medical research about them?