I am a hobbyist and a crafter working with cast models. These modles are up to 80% lead, with the rest being tin or similar soft metals. They are made in a mould, so they often have mould lines that need to be scraped off with a knife. But doing this can create lead dust which will pollute the immediate working environment. I had the idea of doing any scraping while the model was completely submerged in water. The theory is that small particles will be caught in suspension in the water, and the water can then be filtered or otherwise safely disposed of. (In case this needs illustrating, I have made a video of my method: link). My question is essentially, "will this method successfully control the spread of lead dust into my working environment, or am I missing something important?"