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

Katie Wan Yee Yeung; Kevin King Yan Ho; Guang-Jie Zhou; Yuefei Ruan; Paul Kwan Sing Lam; Kenneth Mei Yee Leung

doi:10.1016/j.marpolbul.2022.113878

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

Katie Wan Yee Yeung, Kevin King Yan Ho, Guang-Jie Zhou^*, Yuefei Ruan, Paul Kwan Sing Lam, Kenneth Mei Yee Leung^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

2 Citations (Scopus)

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.

Original language	English
Article number	113878
Journal	Marine Pollution Bulletin
Volume	181
Online published	29 Jun 2022
DOIs	https://doi.org/10.1016/j.marpolbul.2022.113878
Publication status	Published - Aug 2022

Funding

This research was supported by the Research Grants Council of the Hong Kong SAR Government via the General Research Fund (Project No.: 17126517), and the Theme-based Research Scheme (Project No.: T21-711/16-R) to KMYL. GJ Zhou and Y Ruan were supported by the State Key Laboratory of Marine Pollution (City University of Hong Kong) which received regular research funding from Innovation and Technology Commission (ITC) of the Hong Kong SAR Government. However, any opinions, findings, conclusions or recommendations expressed in this publication do not reflect the views of the Hong Kong SAR Government or the ITC. The authors thank the Agriculture, Fisheries and Conservation Department of the HKSAR Government for assistance in collection of algal bloom samples. The authors are also thankful to all student helpers who contributed to seawater samplings.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 14 Life Below Water

Research Keywords

Algal bloom
Ecological risk
Environmental monitoring
Retinoid
Seawater

RGC Funding Information

RGC-funded

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10.1016/j.marpolbul.2022.113878

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title = "Spatiotemporal variations of retinoic acids and their metabolites in the marine environment of Hong Kong",

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.",

keywords = "Algal bloom, Ecological risk, Environmental monitoring, Retinoid, Seawater",

author = "Yeung, {Katie Wan Yee} and Ho, {Kevin King Yan} and Guang-Jie Zhou and Yuefei Ruan and Lam, {Paul Kwan Sing} and Leung, {Kenneth Mei Yee}",

year = "2022",

month = aug,

doi = "10.1016/j.marpolbul.2022.113878",

language = "English",

volume = "181",

journal = "Marine Pollution Bulletin",

issn = "0025-326X",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Spatiotemporal variations of retinoic acids and their metabolites in the marine environment of Hong Kong

AU - Yeung, Katie Wan Yee

AU - Ho, Kevin King Yan

AU - Zhou, Guang-Jie

AU - Ruan, Yuefei

AU - Lam, Paul Kwan Sing

AU - Leung, Kenneth Mei Yee

PY - 2022/8

Y1 - 2022/8

N2 - 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.

AB - 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.

KW - Algal bloom

KW - Ecological risk

KW - Environmental monitoring

KW - Retinoid

KW - Seawater

UR - http://www.scopus.com/inward/record.url?scp=85132919758&partnerID=8YFLogxK

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U2 - 10.1016/j.marpolbul.2022.113878

DO - 10.1016/j.marpolbul.2022.113878

M3 - RGC 21 - Publication in refereed journal

SN - 0025-326X

VL - 181

JO - Marine Pollution Bulletin

JF - Marine Pollution Bulletin

M1 - 113878

ER -

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

Abstract

Funding

UN SDGs

Research Keywords

RGC Funding Information

Access Output

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Permanent Link

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GRF: Ecological Risk Assessment of Retinoic Acids in Urbanised Coastal Marine Ecosystems

TBRS-ExtU-Lead: Enhanced Separation and Sludge Refinery for Wastewater Treatment - Solving the Nexus of Pollution Control and Resource Recovery in Mega Cities

Cite this

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

Abstract

Funding

UN SDGs

Research Keywords

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

GRF: Ecological Risk Assessment of Retinoic Acids in Urbanised Coastal Marine Ecosystems

TBRS-ExtU-Lead: Enhanced Separation and Sludge Refinery for Wastewater Treatment - Solving the Nexus of Pollution Control and Resource Recovery in Mega Cities

Cite this