000145623 001__ 145623
000145623 005__ 20241114112316.0
000145623 0247_ $$2doi$$a10.1016/j.envpol.2024.125198
000145623 0248_ $$2sideral$$a140515
000145623 037__ $$aART-2024-140515
000145623 041__ $$aeng
000145623 100__ $$aHernández, Mauricio
000145623 245__ $$aSpatial dynamics of lindane concentration in a soil-plant system at the Bailín landfill site (Sabiñánigo, Huesca, Spain)
000145623 260__ $$c2024
000145623 5060_ $$aAccess copy available to the general public$$fUnrestricted
000145623 5203_ $$aHexachlorocyclohexane (HCH) is an organochlorine synthetic substance composed of different isomers (α-, β-, γ-, δ-, and ε-HCH), but only γ-HCH isomer or lindane has insecticidal properties. From 1984 to 1992, INQUINOSA Company dumped HCH wastes in the Bailín landfill (Sabiñánigo, Spain), and in 2014 these HCH residuals were transferred to a secure landfill, dispersing a small amount of HCH-isomers in the surrounding area. To explore the spatial distribution of this pollution, we evaluated HCH concentration in the soil-vegetation system around the Bailín landfill site. Physicochemical properties showed a greater percentage of organic matter, cation exchange capacity, carbon content, and conductivity in soil samples, while only pH increased in subsoil samples. Our findings also revealed that the concentration of HCH-isomers is very heterogeneous in topsoil samples from <1 μg/kg to 780 μg/kg, whereas in subsoil samples fluctuated from <1 μg/kg to 70 μg/kg. Moreover, the accumulated HCH-isomers among species and plant tissues displayed large variations, with pine needles showing the greatest values. Interestingly, spatial distribution of HCH contamination was mainly concentrated close to the old landfill and secure landfill, suggesting that the removal processes largely influence soil contamination. Correlation of HCH levels in soil and plant material suggests that HCH uptake onto plants was accomplished either by translocation from soil via the root system or by deposition from air into the above-ground parts of the plants. As HCH-isomers are hydrophobic compounds that tend to be adsorbed by soil organic matter, HCH probably do not leach into groundwater, and the main sinks are surface runoff, volatilization, and degradation. However, more studies would be required to assess the potential sinks of HCH wastes in the Bailín landfill site.
000145623 540__ $$9info:eu-repo/semantics/embargoedAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000145623 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000145623 700__ $$aFernández, Jesús
000145623 700__ $$aFontecha, Gustavo
000145623 700__ $$0(orcid)0000-0001-7275-9321$$aGómez, Javier$$uUniversidad de Zaragoza
000145623 7102_ $$12000$$2685$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Petrología y Geoquímica
000145623 773__ $$g363 (2024), 125198 [8 pp.]$$pEnviron. pollut.$$tEnvironmental Pollution$$x0269-7491
000145623 8564_ $$s5714615$$uhttps://zaguan.unizar.es/record/145623/files/texto_completo.pdf$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2026-10-28
000145623 8564_ $$s2217317$$uhttps://zaguan.unizar.es/record/145623/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2026-10-28
000145623 909CO $$ooai:zaguan.unizar.es:145623$$particulos$$pdriver
000145623 951__ $$a2024-11-14-10:18:08
000145623 980__ $$aARTICLE