And while fluoride intake from water and air can be evaluated relatively easily, it is much harder to estimate how much a given population ingests from foodstuffs because of the wide variations in individual eating habits and in fluoride concentrations in
And while fluoride intake from water and air can be evaluated relatively easily, it is much harder to estimate how much a given population ingests from foodstuffs because of the wide variations in individual eating habits and in fluoride concentrations in
而且，虽然来自于水和空气中的氟化物摄入量相对容易测量，但是却难以测量出特定的人口从食物中摄入的氟化物含量，因为有很大的区别存在于个人的饮食习惯和不同食物的氟含量当中。