Fluoride is a widely distributed nephrotoxin with exposure potentially resulting from environmental fluorine excess.Kidney is the main excretory organ of fluorine.
Cytogenetic techniques as a measurement method of radiation biodosimetry were widely used and validated in evaluation of ionizing radiation biodosimetry, especially in acute radiation exposure.
A new fabrication method for hollow microneedle array is proposed with three times exposures in deep X-ray lithography of synchrotron radiation and the development procedure.
And the boundary of them has the same lithologic character: the ravinement surface of river course or exposure mudstone of flooding plain and root clay.