Characteristics and Distribution of Microplastics in Surface Sediment of Selat Pulau Tuba, Langkawi, Kedah

Kamaruddin, Sharir Aizat; Rusli, Hurin Haifa; Naim, Khairul; Roslani, Muhammad Akmal

doi:10.24191/myse.v7i2.10269

Cited by 5 publications

(5 citation statements)

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“…Overall, spline has been known to be generating gently varying surfaces such as pollution concentrations [18]. GIS has been proven to be effective tools and software for visualizing and presenting the variation of water pollutants in a study area [19].…”

Section: Resultsmentioning

confidence: 99%

A Comparative Accuracy of Regularized and Tension Spline Methods to Estimate and Model the Surface Water pH of Pulau Tuba, Langkawi, Kedah

Kamaruddin¹,

Nasir²,

Rahim³

et al. 2021

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This research is conducted to assess the accuracy of spline interpolation methods to predict and model the surface water pH of Pulau Tuba, Langkawi, Kedah, Malaysia. In-situ sampling activities using pH-meter and Geographic Positioning Systems (GPS) were carried out during high tides and at noon in November 2018. The development of spatial models was constructed using Regularized and Tension spline methods. Then, validation of models was carried out to compare the observed and predicted values of pH using correlation analysis, regression analysis, and error analysis. The accuracy of the developed map was calculated using the overall accuracy equation. This research found that the regularized spline method had more accuracy in estimating surface water pH variability than the tension spline method. Pearson correlation coefficient (r), Coefficient of determination (R2), Mean Absolute Error (MAE) and Root Mean Square Error (RMSE) were reported at 0.896, 0.803, 0.0265 and 0.0344 for the regularized spline method,respectively. The developed spatial model was then transformed into a map by adding map elements such as legend, title, north arrow, and scales for effective visualization. The developed map has an accuracy of 87.50%. The surface water pH was found at the range of 7-8. Low reading of pH is expected due to the addition of rainwater to the coastal water of Pulau Tuba, Langkawi, Kedah. The research outcomes would benefit government and non-government agencies to monitor the coastal and ocean acidification and the development of strategic policies and rules to reduce the impact of anthropogenic activities and climate changes for this area.

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Section: Resultsmentioning

confidence: 99%

A Comparative Accuracy of Regularized and Tension Spline Methods to Estimate and Model the Surface Water pH of Pulau Tuba, Langkawi, Kedah

Kamaruddin¹,

Nasir²,

Rahim³

et al. 2021

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“…The island has many biodiversity species that flourish from the coastal, marine, and mangrove ecosystems. The socio-economic activities by the locals are farming, fishing and operating tourism activities (Kamaruddin et al, 2020b). Pollution can be expected from non-point sources from Pulau Langkawi, however, point source pollution directly from the islands is considered minimal (Kamaruddin et al, 2019).…”

Section: Methodology Description Of Study Areamentioning

confidence: 99%

Sustainable Management of the Coastal Water pH of Pulau Tuba Using the Inverse Distance Weighted (IDW) Method

Kamaruddin

Aziz

Roslani

et al. 2021

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The purpose of this research is to evaluate the precision of the Inverse Distance Weighted (IDW) to estimate and map the coastal water pH for the sustainability of Pulau Tuba, Langkawi, Kedah. 30 sampling points have been set up during two sampling activities in November 2018. The pH meter has been calibrated and lowered to 1 meter below the water surface to measure the reading of pH. The development of the spatial model was developed using the spatial analyst tool available in ArcGIS Software. Several types of statistical analyses were carried to compare the observed and predicted value of pHs such as correlation analysis, regression analysis, and error analysis. Accuracy assessment was carried later after the transformation of a spatial model into a surface map. The research found that the IDW method successfully interpolated the pH readings. The research found that there is a strong positive correlation between the observed and predicted values. For error analysis, Mean Absolute Error (MAE) and Root Mean Square Error (RMSE) were recorded at 0.033 and 0.044, respectively. After the transformation of the spatial model to the surface map, the accuracy of the map is recorded at 81.25%. The map produced can be used by residents and local government for social and economic development and protection of biodiversity at the coastal water of Pulau Tuba, Langkawi, Kedah.

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“…Water quality, including hydrology, is a significant component of river health evaluations because it affects the spatial and temporal dynamics of various biological patterns and processes in major rivers (Kamaruddin et al, 2022;Mohd Rizal et al, 2022;Sheldon & Fellows, 2010). Studies have found that surface waters are the most polluted due to their easy availability for wastewater dumping (Kamaruddin et al, 2020;Samsudin et al, 2011). Malaysia's latest river water quality was examined in 2020 using 8,098 samples from 1,353 manual monitoring stations covering 672 rivers.…”

Section: Introductionmentioning

confidence: 99%

“…The total solid content in water bodies has adverse and detrimental effects on health and the ecosystem. Solids can degrade the quality of water or wastewater in various ways, and controlling biological and physical wastewater treatment processes requires solids analyses (Al-Badaii et al, 2013;Kamaruddin et al, 2020). Total solids include "total suspended solids," which a filter retains, and "total dissolved solids," which go through the filter (American Public Health Association, 1999).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Current Spatiotemporal Variations of Total Suspended Solid on the Surface Waters of Kuala Perlis, Perlis

A R,

Kamaruddin S A,

K N

et al. 2023

BSJ

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Rivers are vital water sources for human existence and environmental health. Due to freshwater scarcity, monitoring river water quality is crucial, especially concerningtotal suspended solids (TSS), which pose potential risks to health and the environment. Despite this importance, there is a lack of assessment of spatiotemporal TSS variation in Malaysia, particularly in Sungai Kuala Perlis. This study aims to evaluate spatial-temporal TSS variations in the surface water of Kuala Perlis, Perlis. Sampling points were GPS recorded in December 2021. Five sites were established for morning, afternoon, and evening sampling. Water samples were collected and subjected to gravimetric analysis using the American Public Health Assessment (APHA) standard. ANOVA (p=0.05) in SPSS version 26 found TSS ranges of 110.67 mg/L -177.67 mg/L, 27.67 mg/L – 132 mg/L, and 78 mg/L – 304.67 mg/L for morning, afternoon, and evening, respectively. Surprisingly, no significant mean TSS differences were found for temporal (p>0.05) or spatial (p>0.05) variations. Factors influencing TSS variation such as water flow, salinity, and anthropogenic activities, were discussed. These findings inform researchers, governments, and NGOs for future planning in Kuala Perlis, promoting river health and eco-friendly management

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Characteristics and Distribution of Microplastics in Surface Sediment of Selat Pulau Tuba, Langkawi, Kedah

Cited by 5 publications

References 0 publications

A Comparative Accuracy of Regularized and Tension Spline Methods to Estimate and Model the Surface Water pH of Pulau Tuba, Langkawi, Kedah

A Comparative Accuracy of Regularized and Tension Spline Methods to Estimate and Model the Surface Water pH of Pulau Tuba, Langkawi, Kedah

Sustainable Management of the Coastal Water pH of Pulau Tuba Using the Inverse Distance Weighted (IDW) Method

Assessment of the Current Spatiotemporal Variations of Total Suspended Solid on the Surface Waters of Kuala Perlis, Perlis

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