Occurrence of microcystin-LR in vegetated lagoons used for urban runoff management.

In this study, the contents of MC-LR in four macrophyte-vegetated lagoons were determined by solid phase extraction and ultra-high-performance liquid chromatography with tandem mass spectrometry technology. Results indicated that MC-LR was found in Nymphaea tetragona lagoon (lagoon-S), Vallisneria spiralis lagoon (lagoon-B) and another Vallisneria spiralis lagoon (lagoon-J). Only in lagoon dominated by Pistia Stratiotes L. (lagoon-D), MC-LR concentration was undiscovered regardless of seasonal variation. The levels of MC-LR varied seasonally and were affected by the different vegetated aquatic macrophytes. The results suggest that in addition to conventional physicochemical parameters and indicators of water quality, MC-LR levels should be taken into consideration when the effectiveness of phytoremediation is assessed.
PMID: 30772435 [PubMed - as supplied by publisher]

Source: Toxicon - February 14, 2019 Category: Toxicology Authors: Peng XY, Tang YK, Yang WW, Chen YN, Zhou Y, Yuan Y, Huang YF, Liu L Tags: Toxicon Source Type: research