Nitrate in groundwater of the west side Magelang Regency, Central Java, Indonesia

Nitrate (NO 3- ) pollution in groundwater is generally caused by chemical fertilizers from the agricultural sector and wastewater from onsite sanitation. Magelang Regency, Central Java, Indonesia, is a large food estate that has 206 km 2 paddy fields. In addition, this area is inhabited by 1.3 milli...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2021-11, Vol.926 (1), p.12081
Main Authors: Erlinawati, D, Putra, D P E, Titisari, A D
Format: Article
Language:English
Subjects:
Agricultural industry
Agricultural wastes
Agrochemicals
Dug wells
Fertilization
Fertilizers
Groundwater
Groundwater management
Groundwater pollution
Nitrates
Onsite
Rainy season
Rice fields
Sanitation
Wastewater
Water protection
Water sampling
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Summary:Nitrate (NO 3- ) pollution in groundwater is generally caused by chemical fertilizers from the agricultural sector and wastewater from onsite sanitation. Magelang Regency, Central Java, Indonesia, is a large food estate that has 206 km 2 paddy fields. In addition, this area is inhabited by 1.3 million people who produce onsite sanitary waste every day. Due to the concentration and intensity of fertilization and sanitary waste, which are quite high, Magelang Regency is susceptible to groundwater pollution by nitrate. This study aims to determine the characteristics of nitrate in the groundwater of the west side Magelang Regency, Central Java, Indonesia. The research was carried out by testing groundwater samples taken from several springs, dug wells, and drilled wells used by society for their daily needs. Groundwater sampling was carried out in the wet season and tested using the ion chromatography method to determine the level of nitrate in groundwater and know the chemical characteristics to analyze dominant ions in groundwater. The results showed that the average nitrate was 3.9 mg/l; the deviation standard was 5.12; minimum nitrate was 0 mg/l; and maximum nitrat was 20.78 mg/l. The origin of nitrate content may come come from feces but still in small quantities. Facies of groundwater are Ca-HCO 3 and Na-Cl. It can be concluded that the groundwater of the west side Magelang Regency is not yet polluted by nitrate. However, there is still a possibility in the future, so that necessary to apply for groundwater protection immediately.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/926/1/012081