Risk Assessment of Lead and Cadmium in Drinking Water for School use in Nakhon Si Thammarat Province, Thailand.

This research aimed to evaluate children's health risk based on the concentration of lead (Pb) and cadmium (Cd) in the drinking water used by 44 primary schools. Samples were collected from bottled water, tap water, filtered tap water and raw water, for a total of 146 samples, between 1 September 2018 and 31 January 2019. The concentrations of Pb and Cd in drinking water samples were determined by graphite furnace atomic absorption spectrometry.