The results of the determination of the fluoride contents in the vegetadles of
Zhengzhou are reported in this paper. The order of the fluoride contents (mid-
value) of various kind of vegetables is listed.
The data obtained from our experiments, after statistical treatment, show that
there is no significant difference in the fluoride contents of the vegetable of the
same kind, regardless of the origin of the vegetable, from the outskirts or from
the mar...