If not for government regulations, how much lead and asbestos would Americans still be ingesting/inhaling?

I think your question goes to the recent findings about products from China. Interestingly, China imports from the USA the greatest product known for causing cancer, early death, emphysema, addiction and tons of known and doented health problems - cigarettes. And we do this without any concern what so ever for the health of the Chinese, or any other country in the world. Why then is everyone up in arms over the Chinese sending us toys with lead? We have children putting leaded toys in their mouths in the USA, we have adults AND children all over the world putting American cigarettes in their mouths.