Groundwater Vulnerability Assessment to Cemeteries Pollution through GIS-Based DRASTIC Index
نویسندگان
چکیده
Deposition of corpses in the ground is most common burial practice, which can allow interactions between polluting compounds and soil, groundwater, surface water, may afterwards lead to negative environmental impacts risks public health. The risk cemeteries contaminating groundwater related their location, quantity clothes, metals adornments buried, geographical, geological, hydrogeological, climatic factors. Using DRASTIC index geographical information system (GIS) tools, potential for contamination was investigated eight located Figueira da Foz region (Portugal), are main anthropogenic pollution sources area. Aquifer vulnerability assessed through development thirteen site characteristic maps, seven thematic a map, using GIS operation tools. No studies were found on maps with this method digital Cemeteries UC2, UC4, UC5, UC6, UC7, UC8 within zones susceptible recharge, an average recharge rate 254 mm/year. expected develop greater water-holding capacity. water table depth more vulnerable at varying 9.1 m 15.2 m. However, results show only high associated UC4 cemetery contributions T,C > R,S I A D, should be under monitoring program. area surrounding characterized by ranging 22.9 m, mainly fine-grained sands both vadose zone aquifer media, Gleyic Solonchaks topsoil, very unfavorable slope (0–2%), hydraulic conductivity (>81.5 m/day). sensitivity analysis shows that topography, soil media weights effective assessment. highest variation made conductivity, net media. This type approach not makes it possible assess from but also allows definition plans as well provides entities responsible its management surveillance methodology tools continuous monitoring.
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ژورنال
عنوان ژورنال: Water
سال: 2023
ISSN: ['2073-4441']
DOI: https://doi.org/10.3390/w15040812