AI Article Synopsis
- Two LC-MS/MS methods were used to analyze several herbicides and a metabolite in estuarine waters, showing good agreement despite differences in sensitivity.
- The study examined the transportation of these compounds to the Baltic Sea through ten German estuaries, finding detectable levels in both coastal waters (0.9-747ng/L) and sediments (5-136pg/g d.w).
- While the contaminant levels are considered low and unlikely to cause immediate harm, further long-term effect studies are recommended.
Article Abstract
Two LC-MS/MS methods including different sample preparation and quantitative processes showed a good agreement for analysis of the herbicides MCPA, mecoprop, isoproturon, bentazon and chloridazon, and the metabolite chloridazon-methyl-desphenyl (CMD) in estuarine waters. Due to different sensitivity of the methods only one could be used to analyze marine samples. The transport of these compounds to the Baltic Sea via ten German estuaries and their distribution between coastal water and sediments was studied. The results showed that all selected compounds can be transported to the Baltic Sea (0.9-747ng/L). Chloridazon, bentazon, isoproturon and CMD were detected (0.9-8.9ng/L) in the coastal waters and chloridazon and isorproturon in the sediments (5-136pg/g d.w.). Levels of contaminants in the sediments could be influenced by the total organic carbon content. Concentrations observed in the Baltic Sea are most likely not high enough to cause acute effects, but long term effect studies are strongly recommended.
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| http://dx.doi.org/10.1016/j.marpolbul.2016.10.014 | DOI Listing |
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