Assessment of shallow groundwater contamination on Pari Island, Indonesia

Freshwater on small islands is generally limited and relies on rainwater and groundwater. This study aimed to assess changes in shallow groundwater quality on Pari Island, Indonesia. Pari Island is a small island with an area of 41.32 ha and belongs to a monsoon climate. Also, being a residential is...

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Bibliographic Details
Published in:Environmental monitoring and assessment 2023-01, Vol.195 (1), p.87-87, Article 87
Main Authors: Marganingrum, Dyah, Ismail, Mochamad Furqon Azis, Wulan, Diana Rahayuning
Format: Article
Language:English
Subjects:
Aquifer characteristics
Aquifers
Atmospheric Protection/Air Quality Control/Air Pollution
Chemical analysis
climate
Contaminants
Contamination
Dilution
Earth and Environmental Science
Ecology
Ecotoxicology
Environment
Environmental Management
Environmental monitoring
Environmental science
Evaporation
Freshwater
Geology
Groundwater
groundwater contamination
Groundwater pollution
Groundwater quality
Hydrochemical analysis
Hydrochemicals
hydrochemistry
Indonesia
Inland water environment
Monitoring/Environmental Analysis
Monsoon climates
monsoon season
Monsoons
Quality assessment
Rain
Rain water
Rainwater
Rainy season
Seawater
Volume transport
Water analysis
Water balance
Water quality
Water quality control
Wave height
Weathering
Wet season
Wind direction
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Summary:Freshwater on small islands is generally limited and relies on rainwater and groundwater. This study aimed to assess changes in shallow groundwater quality on Pari Island, Indonesia. Pari Island is a small island with an area of 41.32 ha and belongs to a monsoon climate. Also, being a residential island, it attracts many tourists. The approach was to assess the shallow groundwater quality of ten wells during the dry and wet seasons. Changes in water quality were evaluated using traditional hydrochemical analysis methods (Schoeller, Piper, and Gibbs diagrams) and ion ratios. Shallow groundwater quality in the study area showed different responses depending on the season. Therefore, each well responded differently to changes represented by changes in water quality. The change is controlled by various factors: evaporation (or water balance), geology, aquifer characteristics, tides, wind direction, and wave height. These factors trigger the fluctuation of groundwater and seawater interface, affecting the amount of rainwater and seawater transported to the freshwater aquifer layer. This water volume transported affects the process of rock weathering, dissolution, and dilution of contaminants in shallow groundwater.
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-022-10649-w