Comparative Investigation of Water Quality Parameters of Aerial &amp; Rangat Bay, Andaman Islands Using In-Situ Measurements and Spatial Modelling Techniques

Jha, Dilip Kumar; Devi, M. Prashanthi; Vinithkumar, Nambali Valsalan; Das, Apurba Kumar; Dheenan, P.S.; Venkateshwaran, P.; Kirubagaran, R.

doi:10.1007/s12403-013-0086-2

Cited by 20 publications

(14 citation statements)

References 9 publications

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“…Mangrove ecosystem act as an important source of nutrients, organic matter and heavy metals for the adjacent coastal ecosystems and our results indicate coastal mangrove ecosystems of Andaman and Nicobar Islands abide to this ecosystem function with higher nutrient and lower metal concentration observed within the mangrove sediments. The physical parameters of temperature, salinity and pH observed in our site were like the results observed for the mangrove ecosystems in and around AI for pre-monsoon season 42,57,45,46,37 .…”

Section: Discussion;supporting

confidence: 85%

“…Phosphate levels within the four-mangroves zone B (Fig.2) in our results were higher than Chidiyatappu (1.6-fold) 42 , Sippighat (3.1-fold) 49 and Aerial Bay (4.1-fold) 46 and were similar to Sundarbans mangroves sediment 61 . Higher phosphate levels within mangrove sediment are due to the land run-off from the nearby agricultural fields, as these mangrove areas are considered pristine in terms of anthropogenic pollution source 49 .…”

Section: Discussion;supporting

confidence: 62%

“…Lower levels of phosphate at zone B than at zone A within the mangrove ecosystem suggests the outwelling of phosphate by daily tidal influx to the adjacent coastal ecosystem. Phosphate levels of Marine Jetty (Fig.2) in our study were 1.6-fold and 3.6-fold higher than Phoenix Jetty 49 and Aerial Bay 45,46 respectively and were similar to Rangat Bay 42,46 which can be related to the continuous input of anthropogenic waste water discharge at Marine Jetty as there are no source of agricultural input at this site.…”

Section: Discussion;supporting

confidence: 55%

“…Ammonium and nitrate levels of Chidiyatappu zone A & B (Fig.3a & c) were 3-fold and 1.2-fold higher than previously observed for Chidiyatappu Bay 37,42 and Aerial Bay 45 respectively, whereas ammonium levels of Burmanala zone B were 2-fold higher than previously observed values around AI 37,45,46 and nitrate levels were 2-fold lower than Rangat Bay 46 and Sippighat mangrove ecosystem 49 . Ammonium levels of Burmanala and Kalapathar zone A were similar to Aerial Bay 45,46 and Carbyn cove was similar to Rangat Bay 46 .Marina Jetty ammonium levels were 1.1-fold lower than previously recorded for Aerial Bay Jetty 45 .…”

Section: Discussion;contrasting

confidence: 49%

“…Similarly, nutrients such as nitrite, nitrate, ammonium and phosphate concentration of Aerial Bay and Rangat Bay with mangroves was reported for water quality monitoring 46 . Other studies have focused on the influence of anthropogenic activities on coastal ecosystem of these islands, such as influence of sewage and land run-off on the microbial biota and nutrient concentrations of Portblair Bay 47 , changes in bacterial and physico-chemical properties of seawater due to land run-off 48 , whereas hypoxic conditions created by sewage disposal due to human activities have been reported near mangrove ecosystem of Phoenix Jetty, South Andamans 49 .…”

Section: Introductionmentioning

confidence: 65%

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Andaman mangrove sediments: source of nutrients and sink of heavy metals

Mishra

Manish

2018

Preprint

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Andaman Islands (AI) of India is a biodiversity hotspot of mangroves but biogeochemical dynamics of AI is less understood. We collected sediment samples of four AI mangrove sites and one site without mangroves for nutrients and trace metal analysis. Samples were collected from each site at the inlet of seawater (Zone A) and the other 500m into the mangrove creek (Zone B). Nutrients (sulphate, ammonium, nitrite and nitrate) levels, organic matter (OM) and carbon content were higher at Zone B of mangrove ecosystem due to the higher OM content from mangrove leaf litter decomposition and microbial degradation. Metal (Pb &Cd) content of zones with and without mangroves were similar and Igeo values indicated moderate contamination of mangrove zones of AI due to lack of anthropogenic pollution. Our results suggest mangrove ecosystems of AI are uncontaminated from heavy metals and are source of nutrients to the oligotrophic coastal ecosystems of Andaman Sea.

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Section: Discussion;supporting

confidence: 85%

Section: Discussion;supporting

confidence: 62%

Section: Discussion;supporting

confidence: 55%

Section: Discussion;contrasting

confidence: 49%

Section: Introductionmentioning

confidence: 65%

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Andaman mangrove sediments: source of nutrients and sink of heavy metals

Mishra

Manish

2018

Preprint

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Influence of natural and anthropogenic factors on the water quality of the coastal waters around the South Andaman in the Bay of Bengal

et al. 2015

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Hydrogeochemical characterization and water quality evaluation for drinking and irrigation purposes of coastal aquifers of Middle Andaman

Kumar,

Vishwakarma,

Singh

et al. 2024

Discov Appl Sci

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A comprehensive study to characterize the hydrogeochemistry of the region and the impact of saltwater intrusion on groundwater was conducted along the eastern coast of Middle Andaman of Andaman and Nicobar (A&N) Islands. The escalating population growth and intensified tourism activities have resulted in the over-extraction of groundwater. Seismic activities led to the opening of lineaments to the sea and the dissolution of limestone in the influence of seawater. 24 groundwater samples and 1 reference sample from sea were taken from various locations of middle Andaman. The analysis involved the determination of major cations, anions, and heavy metals using Inductively Coupled Plasma Optical Emission spectroscopy (ICP), spectrophotometry, and flame photometry. Furthermore, X-ray diffraction analysis, binary diagrams, Chloro-alkaline indices (CAI), Gibbs Plot, correlation matrix, Piper plot, Chadha’s plot and Principal Component Analysis (PCA) to the major ions data indicated rock-water interactions, strong correlations among alkali and alkaline earth metals, and interactions between seawater and carbonate minerals respectively. The water quality index indicated “very poor to unsuitable for drinking purposes” in 24% of the samples. Additionally, indices for irrigation suitability; total hardness (TH), residual sodium carbonate (RSC), and Magnesium adsorption ratio (MAR) were found to be detrimental for irrigation in 80%, 08%, and 12% of the water samples, respectively. These results highlight the importance of implementing effective water resource management techniques, such as groundwater extraction rates, adopting appropriate water treatment technologies to mitigate the adverse impacts of heavy metals, saltwater intrusion and maintain water quality for human consumption and agricultural use in the region.

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Comparative Investigation of Water Quality Parameters of Aerial & Rangat Bay, Andaman Islands Using In-Situ Measurements and Spatial Modelling Techniques

Cited by 20 publications

References 9 publications

Andaman mangrove sediments: source of nutrients and sink of heavy metals

Andaman mangrove sediments: source of nutrients and sink of heavy metals

Influence of natural and anthropogenic factors on the water quality of the coastal waters around the South Andaman in the Bay of Bengal

Hydrogeochemical characterization and water quality evaluation for drinking and irrigation purposes of coastal aquifers of Middle Andaman

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