High levels of heavy metals in Western Arabian Gulf mangrove soils
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Major development along the Western Arabian Gulf coast has disturbed the marine environment, and led to increased concentrations of heavy metals in the coastal soils. The amount of 13 of these metals (Ag, Al, As, Cd, Cr, Cu, Fe, Mn, Mo, Ni, Pb, V and Zn) in Avicennia marina branches and leaves as well as in rhizosphere soil samples from two Bays 70 km apart (Tarut Bay; Saudi Arabia and Tubli Bay; Bahrain) was quantified. Heavy metal concentration in the two bays were similar and higher than those reported in other regions suggesting a generalized heavy metal pollution in the area. These concentrations are much higher than the international permissible limits of soil contaminations except for Iron and Manganese which were within the limits. The results indicate that marine environments in the area need recovery plans and monitoring.
KeywordsAvicennia marina Contaminants Stabilization Bio-concentration factor Biogeochemical processes
I am thankful to Science College Research Units at Imam Abdulrahman Bin Faisal University (IAU), for providing chemicals and analyzing samples in ICP unit, in particular Norah Alnaim and Amnah Alharbi, as well as, my intern student Alanoud Alyami.
Compliance with ethical standards
Conflict of interest
The author declares that she has no conflict of interest.
- 2.Naser H (2012) Metal concentrations in marine sediments influenced by anthropogenic activities in Bahrain, Arabian Gulf. Metal contaminations: sources, detection and environmental impacts. NOVA Science Publishers, Inc., New York, pp 157–175Google Scholar
- 4.Poonian C (2003) The effects of the 1991 Gulf War on the marine and coastal environment of the Arabian Gulf: impact, recovery and future prospects. Management 44Google Scholar
- 10.Van Lavieren H, Burt J, Feary D, Cavalcante G, Marquis E, Benedetti L et al (2011) Managing the growing impacts of development on fragile coastal and marine ecosystems: lessons from the Gulf. A policy report, UNU-INWEH, Hamilton, ON, CanadaGoogle Scholar
- 13.Almahasheer H (2016) Ecosystem services of Avicennia marina in the Red Sea. PhD. Dissertation. King Abdullah University of Science and TechnologyGoogle Scholar
- 18.Almahasheer H, Al-Taisan W, Mohamed MK (2013) Mangrove deterioration in Tarut Bay on the eastern province of the Kingdom of Saudi Arabia. Pakhtunkhwa J Life Sci 01(02):49–59Google Scholar
- 19.Naser H (2016) Management of marine protected zones—case study of Bahrain, Arabian Gulf. In Applied studies of coastal and marine environments. InTech, RejikaGoogle Scholar
- 22.Scott DA (1995) A directory of wetlands in the Middle East. IUCN, GlandGoogle Scholar
- 24.ESRI (2017) World Countries. [Layer Package]. Esri data and maps. https://www.arcgis.com/home/item.html?id=ac80670eb213440ea5899bbf92a04998—overview
- 25.ESRI (2017) World Ocean Base. [Layer Package]. Esri data and maps. https://www.arcgis.com/home/item.html?id=1e126e7520f9466c9ca28b8f28b5e500
- 28.Kingston H, Walter P (1995) Microwave assisted acid digestion of siliceous and organically based matrices. EPA Draft Method, 3052Google Scholar
- 35.Beyer WN (1990) Evaluating soil contamination. Fish and Wildlife Service, Washington, DCGoogle Scholar
- 36.Authority P o. l (2016) Cefas guideline action levels for the disposal of dredged materialGoogle Scholar
- 38.Luo S-l, Chen L, Chen J-l, Xiao X, Xu T-y, Wan Y et al (2011) Analysis and characterization of cultivable heavy metal-resistant bacterial endophytes isolated from Cd-hyperaccumulator Solanum nigrum L. and their potential use for phytoremediation. Chemosphere 85(7):1130–1138CrossRefPubMedGoogle Scholar
- 39.Althukair A, Khan M, Alhinai K (1995) Monitoring of coast line and habitat changes of Tarut Bay, Saudi Arabia using satellite images. In Proceedings of ASCE-SAS Second Regional Conference and ExhibitionGoogle Scholar
- 40.De Lacerda LD, Abrao JJ (1984) Heavy metal accumulation by mangrove and saltmarsh intertidal sediments. Rev Bras Biol 7:49–52Google Scholar
- 45.Shahid M, Ferrand E, Schreck E, Dumat C (2013) Behavior and impact of zirconium in the soil–plant system: plant uptake and phytotoxicity. In: Whitacre D (ed) Reviews of environmental contamination and toxicology, vol 221. Springer, New York, pp 107–127Google Scholar