AI Article Synopsis
- Ten pharmaceutically active compounds (PhACs) were studied in northern Taiwan's estuarine waters and the Taiwan Strait to assess their ecological risk using risk quotients (RQ).
- Caffeine was found at the highest concentration (130-718 ng/l) in estuarine waters, while other PhACs like gemfibrozil and ketoprofen were more prevalent in Taiwan Strait seawater.
- Most RQ values indicated low risk to aquatic life, with only caffeine, erythromycin, and sulfadiazine showing potential low risk in some areas.
Article Abstract
Ten pharmaceutically active compounds (PhACs) were determined in northern Taiwan estuarine waters and Taiwan Strait (TS) seawater. The ecological risk of these PhACs was assessed using risk quotient (RQ), which is the ratio of the measured maximum concentration to the predicted no-effect concentration. Six PhACs were detected within the estuarine waters. Caffeine concentration (130-718 ng l) was the highest among the analyzed PhACs. The distribution of PhACs in the Danshuei River Estuary generally exhibited addition behavior, except that caffeine showed conservative behavior. Carbamazepine, gemfibrozil, caffeine, and ketoprofen were detected in TS seawaters. Their concentrations follow the sequence: gemfibrozil > ketoprofen > caffeine > carbamazepine. The caffeine concentrations in TS seawaters were 2-3 orders of magnitude lower than those in Danshuei estuarine waters. With few exceptions for caffeine, erythromycin, and sulfadiazine posing low risk in some estuarine waters, most of the RQ values were <0.01, suggesting no adverse effects on aquatic organisms.
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| http://dx.doi.org/10.1016/j.marpolbul.2019.06.069 | DOI Listing |
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