This powerpoint presentation begins by providing background information on pharmaceuticals in natural waters and wastewater. The presentation looks at the potential transformations of
pharmaceuticals to toxic byproducts, synergistic effects of exposure to multiple
pharmaceuticals, and
long-term vs. short term effects. Conclusions were that: during drinking water and wastewater
chlorination acetaminophen is degraded and
toxic benzoquinone is produced; and,
degradation of acetaminophen and production
of toxic benzoquinone depends on pH and on
the applied "chlorine to pharmaceutical" molar
ratio. Includes tables, figures.