Heavy Metal Pollution and Potential Ecological Risk Assessment in a Typical Mariculture Area in Western Guangdong

The distribution characteristics, environmental contamination states, and potential ecological risks of chromium (Cr), copper (Cu), arsenic (As), lead (Pb), and cadmium (Cd) in seawater, sediment and breeding feed were studied in a typical mariculture area in western Guangdong of China. Pearson corr...

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Autores principales:	Ning He, Lanzhou Liu, Ren Wei, Kaifeng Sun
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	heavy metals mariculture environment potential ecological risk assessment offshore pollution evaluation Medicine R
Acceso en línea:	https://doaj.org/article/93ca2dbb6f224889bca8df32ff2bc9c0
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id	oai:doaj.org-article:93ca2dbb6f224889bca8df32ff2bc9c0
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spelling	oai:doaj.org-article:93ca2dbb6f224889bca8df32ff2bc9c02021-11-11T16:23:38ZHeavy Metal Pollution and Potential Ecological Risk Assessment in a Typical Mariculture Area in Western Guangdong10.3390/ijerph1821112451660-46011661-7827https://doaj.org/article/93ca2dbb6f224889bca8df32ff2bc9c02021-10-01T00:00:00Zhttps://www.mdpi.com/1660-4601/18/21/11245https://doaj.org/toc/1661-7827https://doaj.org/toc/1660-4601The distribution characteristics, environmental contamination states, and potential ecological risks of chromium (Cr), copper (Cu), arsenic (As), lead (Pb), and cadmium (Cd) in seawater, sediment and breeding feed were studied in a typical mariculture area in western Guangdong of China. Pearson correlation analysis was used to determine metal homology, and the single-factor index, potential ecological risk index, hazard quotient (HQ), and joint probability curve (JPC) were used to evaluate pollution states and ecological risk of metals. Four main statements can be concluded from the results: (1) Pb and Cu showed a similar distribution pattern in the seawater and sediment and their contents in the breeding wastewater exceeded the standard limits in several stations. (2) Cr, Cu, and As have similar sources in the feeds, which may be an important source of metals in water. (3) The risk assessment revealed that the sediment from the studied areas was at a low ecological risk of heavy metal, whereas, water in the pond and outfall was slightly polluted by Pb, and water in the cages and outfall were slightly polluted by Cu. (4) Both the hazard quotient (HQ) and joint probability curve showed the overall risk probabilities (ORPs) in the waters ranked as Cu > Cr > Pb > Cd > As. Although Pb and Cd had HQ values greater than 1, their ORPs were acceptable. This study highlights that multiple evaluation models are more reliable than the single ecological risk assessment for evaluating heavy metal pollution risks in the mariculture area.Ning HeLanzhou LiuRen WeiKaifeng SunMDPI AGarticleheavy metalsmariculture environmentpotential ecological risk assessmentoffshore pollution evaluationMedicineRENInternational Journal of Environmental Research and Public Health, Vol 18, Iss 11245, p 11245 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	heavy metals mariculture environment potential ecological risk assessment offshore pollution evaluation Medicine R
spellingShingle	heavy metals mariculture environment potential ecological risk assessment offshore pollution evaluation Medicine R Ning He Lanzhou Liu Ren Wei Kaifeng Sun Heavy Metal Pollution and Potential Ecological Risk Assessment in a Typical Mariculture Area in Western Guangdong
description	The distribution characteristics, environmental contamination states, and potential ecological risks of chromium (Cr), copper (Cu), arsenic (As), lead (Pb), and cadmium (Cd) in seawater, sediment and breeding feed were studied in a typical mariculture area in western Guangdong of China. Pearson correlation analysis was used to determine metal homology, and the single-factor index, potential ecological risk index, hazard quotient (HQ), and joint probability curve (JPC) were used to evaluate pollution states and ecological risk of metals. Four main statements can be concluded from the results: (1) Pb and Cu showed a similar distribution pattern in the seawater and sediment and their contents in the breeding wastewater exceeded the standard limits in several stations. (2) Cr, Cu, and As have similar sources in the feeds, which may be an important source of metals in water. (3) The risk assessment revealed that the sediment from the studied areas was at a low ecological risk of heavy metal, whereas, water in the pond and outfall was slightly polluted by Pb, and water in the cages and outfall were slightly polluted by Cu. (4) Both the hazard quotient (HQ) and joint probability curve showed the overall risk probabilities (ORPs) in the waters ranked as Cu > Cr > Pb > Cd > As. Although Pb and Cd had HQ values greater than 1, their ORPs were acceptable. This study highlights that multiple evaluation models are more reliable than the single ecological risk assessment for evaluating heavy metal pollution risks in the mariculture area.
format	article
author	Ning He Lanzhou Liu Ren Wei Kaifeng Sun
author_facet	Ning He Lanzhou Liu Ren Wei Kaifeng Sun
author_sort	Ning He
title	Heavy Metal Pollution and Potential Ecological Risk Assessment in a Typical Mariculture Area in Western Guangdong
title_short	Heavy Metal Pollution and Potential Ecological Risk Assessment in a Typical Mariculture Area in Western Guangdong
title_full	Heavy Metal Pollution and Potential Ecological Risk Assessment in a Typical Mariculture Area in Western Guangdong
title_fullStr	Heavy Metal Pollution and Potential Ecological Risk Assessment in a Typical Mariculture Area in Western Guangdong
title_full_unstemmed	Heavy Metal Pollution and Potential Ecological Risk Assessment in a Typical Mariculture Area in Western Guangdong
title_sort	heavy metal pollution and potential ecological risk assessment in a typical mariculture area in western guangdong
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/93ca2dbb6f224889bca8df32ff2bc9c0
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Heavy Metal Pollution and Potential Ecological Risk Assessment in a Typical Mariculture Area in Western Guangdong

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