Wolf, Leif published the artcileTracking artificial sweeteners and pharmaceuticals introduced into urban groundwater by leaking sewer networks, Recommanded Product: Diatrizoic Acid, the main research area is monitoring artificial sweetener pharmaceutical urban groundwater pollution; sewer leak pharmaceutical artificial sweetener pollution urban groundwater.
There is little quant. information on temporal trends of pharmaceuticals and other emerging pollutants, including artificial sweeteners, in urban groundwater and their suitability as tracers to aid in urban water management. This work monitored pharmaceuticals and artificial sweeteners for 6 years in a shallow urban groundwater body along with conventional wastewater tracers in an observation well network specifically constructed to assess sewer leaks. Of 71 substances screened, 24 were determined at greater than anal. detection limits. The most frequent compounds were the iodinated x-ray contrast medium, amidotrizoic acid (35.3%), the anticonvulsant, carbamazepine (33.3%), and the artificial sweetener acesulfame (27.5%); all other substances occurred in <10% of screened wells. Results from a group of specifically constructed focus wells within 10 m of defective sewers confirmed sewer leaks as a major entrance pathway to groundwater. Pharmaceutical and artificial sweetener spatial distribution corresponded well with pipeline leakage model predictions, which operate on optical sewer condition monitoring data and hydraulic information. Correlations between carbamazepine, iodinated X-ray contrast media, and artificial sweetener concentrations were weak to non-existent. Peak concentrations of ≤4130 ng/L amidotrizoic acid were observed in groundwater downstream from a local hospital. Anal. of 168 samples for amidotrizoic acid, collected on 5 dates, did not show significant temporal trends for years 2002-2008, despite changed recommendations in the medical use of amidotrizoic acid. Detailed results showed that current mass balance approaches for urban groundwater bodies must be adapted to reflect spatially distributed leaks and variable wastewater composition in addition to lateral and horizontal groundwater fluxes. Science of the Total Environment published new progress about Drugs. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Recommanded Product: Diatrizoic Acid.
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem