Abstract:Reclaimed water irrigation is a beneficial practice that could worsen nitrogen impairment of surrounding waterbodies. Estimating this contribution requires development of a suitable chemical marker. Toward that end, reuse effluents throughout Florida analyzed by liquid chromatography tandem mass spectrometry or high‐resolution atomic mass identified the radiographic contrast medium iohexol as a marker unique to reclaimed water. Because iohexol may be subject to biodegradation during subsurface transport or pho… Show more
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