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Evaluation of nitrate in shallow groundwater at Pasirkoja of Bandung City, Indonesia, using the pollution index and the nitrate pollution index methods Naily, Wilda; Sunardi, Sunardi; Asdak, Chay; Hendarmawan, Hendarmawan
Journal of Degraded and Mining Lands Management Vol. 11 No. 4 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.1114.6251

Abstract

Pasirkoja is an old residential area in Bandung City currently densely populated. Some people in Pasirkoja use shallow groundwater for washing and bathing, and some for cooking. Pollutants very easily pollute shallow groundwater, and nitrate is one of the pollutants found in shallow groundwater in residential areas. The water quality status was determined using the pollution index (PI) method based on a Decree of the Minister of Environment Number 115 of 2003 and the nitrate pollution index (NPI) to ascertain the shallow groundwater quality in Pasirkoja of Bandung City, Indonesia. The variables used in the PI method were pH, turbidity, total dissolved solids (TDS), nitrate, and nitrite, while the NPI method used the nitrate parameter. Shallow groundwater samples were taken during the rainy season and dry season. Based on the PI method, the results showed that the quality status of shallow groundwater at the research location is mostly lightly polluted in the rainy and dry seasons. Meanwhile, based on the NPI method, most are clean (not polluted). Differences in the quality status of shallow groundwater depend on the environmental conditions around which shallow groundwater samples were taken. The research results also showed that, based on the PI method, nitrate is not the main parameter that determines pollution at the research location.
The culture inoculation method could influence heavy metals levels in soil, plant uptake, and biomass: a meta-analysis Bachtiar, Taufiq; Nurjayati, Ratih; Citraresmini, Ania; Hidawati, Hidawati; Rachmawati, Veny; Mulyono, Asep; Noviardi, Rhazista; Naily, Wilda; Jayanti, Merri; Wahyuningsih, Siti; Marganingrum, Dyah; Djuwansyah, Muhammad Rahman; Adenan, Mohd Noor Hidayat
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 22, No 2 (2025): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i2.108821

Abstract

Heavy metals (HMS) contamination in soil is a major issue that significantly impacts plants and human health. Various approaches have been employed to mitigate the effects of heavy metals, including the application of microorganisms (MO). This study aims to analyze the impact of bioinoculation application on HMS content in plants and soil through a meta-analysis approach. Twenty-nine publications reviewed between 2001 and 2023 reported the effects of microorganism applications on HMS content in plants and soil. A systematic review was applied to select relevant studies, and effect sizes (ES) were calculated using Hedges’d to quantify the impact of microbial treatments on heavy metal content. The parameters observed were As, Hg, Cd, Cr, Ni, Co, Pb, Ni, Mn, Zn, and Fe in plants (shoots, roots, fruit, and total plants), soil, and plant biomass. The ES values of Hedges’ microorganisms HMS on soil, plants, and plant biomass were -3.257 (p<0.001), 1.234 (p<0.001), and 2.301 (p<0.001), respectively. The results showed that the greatest reduction in HMS content in the soil was the combined application of fungi and bacteria (ES -5.519; p<0.001), and the highest metal content absorbed by the soil and plants was Cu (ES -13.642; p<0.001) and Pb (2.645; p<0.001), respectively. This study showed that Orychophragmus violaceus had the highest metal absorption rate (ES 15.528, p<0.001) to help clean up heavy metal contamination, especially in agricultural land and industrial areas. This approach can improve soil quality, enhance plant growth, and reduce health risks, which benefits farmers, policymakers, and environmental agencies.