Spatiotemporal variations of retinoic acids and their metabolites in the marine environment of Hong Kong

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Katie Wan Yee Yeung
  • Kevin King Yan Ho
  • Guang-Jie Zhou
  • Paul Kwan Sing Lam

Detail(s)

Original languageEnglish
Article number113878
Journal / PublicationMarine Pollution Bulletin
Volume181
Online published29 Jun 2022
Publication statusPublished - Aug 2022

Abstract

Excessive intake of retinoic acids (RAs) and the oxidative metabolites, 4-oxo-RAs, can lead to abnormal morphological development in animals. This study investigated spatiotemporal variations of concentrations and compositions of these compounds in Hong Kong's seawater and during algal blooms. Total concentrations of the studied compounds in seawater were up to 0.790 and 0.427 ng/L in dry and wet seasons, respectively, though no significant seasonal variation was observed. Spatially, the Deep Bay Water Control Zone was the most enriched area with the studied compounds owing to its semi-enclosed nature and influence from the Pearl River discharge. During algal blooms, the studied compounds were detected up to 4.74 ng/L. Based on calculated risk quotients, the ecological risk of the studied compounds to Hong Kong's marine ecosystems was low. Nevertheless, the occurrence and distribution of these chemicals in the marine environment should be closely monitored where algal blooms frequently occur.

Research Area(s)

  • Algal bloom, Ecological risk, Environmental monitoring, Retinoid, Seawater

Citation Format(s)

Spatiotemporal variations of retinoic acids and their metabolites in the marine environment of Hong Kong. / Yeung, Katie Wan Yee; Ho, Kevin King Yan; Zhou, Guang-Jie; Ruan, Yuefei; Lam, Paul Kwan Sing; Leung, Kenneth Mei Yee.

In: Marine Pollution Bulletin, Vol. 181, 113878, 08.2022.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review