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<p>Proper solid waste disposal is a major socioeconomic and environmental issue in developing countries, including Ethiopia. This study identifies suitable landfill sites and assesses socioeconomic impacts of existing waste sites in Adi Gudom town, northern Ethiopia, using GIS-based Analytical Hierarchy Process (AHP) and field assessment. Road, river, water well, land use/cover, slope, lithology, soil, and sensitive places (churches/mosques, school) were the primary criteria. Data from 130 households were collected via questionnaires to assess waste’s impact on health, economy, society, and environment, and analyzed with descriptive statistics. Results show major environmental problems: 6% severe water contamination, 60.7% air pollution from waste burning, and 51.5% dust and filth spread. The socio-economic impacts include the spread of harmful insects and pests (58.46%) and negative effects on local religious institutions (55.39%). Health concerns were prominent, with more child illnesses, contaminated water exposure, and waste scavenging. Results show 2.99&#xa0;km<sup>2</sup> (4.76%) of the area is highly suitable for a solid waste disposal site. 4.98&#xa0;km<sup>2</sup> (7.9%) suitable, 15.45&#xa0;km<sup>2</sup> (24.5%) moderately suitable, 16.66&#xa0;km<sup>2</sup> (26.5%) less suitable, and 22.75&#xa0;km<sup>2</sup> (36.2%) unsuitable for the solid waste disposal site. The suitability of the Landfill site was validated using the area under the curve (AUC) method. The model demonstrated higher accuracy and prediction rates, with values of 0.919 and 91.9%, respectively. Three sites meeting scientific and environmental criteria were identified, mainly on the town’s western, northern, northeastern, and southwestern edges. The results aid evidence-based decision-making for policymakers, planners, and authorities, enabling the development of environmentally sound, socially acceptable waste strategies that align with sustainable development goals.</p>

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GIS-based multi-criteria decision analysis (AHP) for sustainable landfill site selection in Adi Gudom town, Northern Ethiopia

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月19日

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  • Abadi Gebrehiwot Gebrewahd,
  • Yewuhalashet Fissha,
  • N. Rao Cheepurupalli,
  • E. N. Dhanamjaya Rao,
  • Blessing Olamide Taiwo,
  • Angesom Gebretsadik

摘要

Proper solid waste disposal is a major socioeconomic and environmental issue in developing countries, including Ethiopia. This study identifies suitable landfill sites and assesses socioeconomic impacts of existing waste sites in Adi Gudom town, northern Ethiopia, using GIS-based Analytical Hierarchy Process (AHP) and field assessment. Road, river, water well, land use/cover, slope, lithology, soil, and sensitive places (churches/mosques, school) were the primary criteria. Data from 130 households were collected via questionnaires to assess waste’s impact on health, economy, society, and environment, and analyzed with descriptive statistics. Results show major environmental problems: 6% severe water contamination, 60.7% air pollution from waste burning, and 51.5% dust and filth spread. The socio-economic impacts include the spread of harmful insects and pests (58.46%) and negative effects on local religious institutions (55.39%). Health concerns were prominent, with more child illnesses, contaminated water exposure, and waste scavenging. Results show 2.99 km2 (4.76%) of the area is highly suitable for a solid waste disposal site. 4.98 km2 (7.9%) suitable, 15.45 km2 (24.5%) moderately suitable, 16.66 km2 (26.5%) less suitable, and 22.75 km2 (36.2%) unsuitable for the solid waste disposal site. The suitability of the Landfill site was validated using the area under the curve (AUC) method. The model demonstrated higher accuracy and prediction rates, with values of 0.919 and 91.9%, respectively. Three sites meeting scientific and environmental criteria were identified, mainly on the town’s western, northern, northeastern, and southwestern edges. The results aid evidence-based decision-making for policymakers, planners, and authorities, enabling the development of environmentally sound, socially acceptable waste strategies that align with sustainable development goals.