Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia, 80100, Naples, Italy.
Environ Monit Assess. 2013 Mar;185(3):2671-82. doi: 10.1007/s10661-012-2738-2. Epub 2012 Jul 6.
Since the mid 1980s, Naples and the Campania region have suffered from the dumping of wastes into overfilled landfills. The aim was to characterise a former cave located in Roccarainola (Naples, Italy) for its eventual destination to a controlled landfill site. A detailed hydro-geochemical survey of the area was carried out through drilling of 14 boreholes and four monitoring wells. Samples of water, sediment and soil were analysed for heavy metals and organic contaminants from a dew pond placed in the middle of the cave. The underneath aquifer was also surveyed. The nature of gases emitted from the site was investigated. Results of the geognostic survey revealed the presence of huge volumes of composite wastes, approximately half a million of cubic metre, which accumulated up to a thickness of 25.6 m. In some points, wastes lie below the free surface level of the aquifer. The sampled material from the boreholes revealed levels of As, Cd, Cr, Cu, Hg, Pb, Sn, Tl and Zn exceeding the intervention legal limits. Outstanding loads of Cd, Pb and Zn were found, with levels exceeding of about 50, 100 and 1,870 times the limit. In several points, polycyclic aromatic hydrocarbon load was extremely high, 35 vs 1 mg kg(-1) of the threshold. The aquifer was also very heavily polluted by Cd, Cr-tot, Cu, Fe, Mn, Ni, Pb and Zn, with impressive high load of Cr and Mn, up to 250-370 times the limits. Hot gases up to 62 °C with presence of xylene and ethylbenzene were found. Results indicated that the site needs an urgent intervention of recovery to avoid compromising the surrounding areas and aquifers of the Campania plain.
自 20 世纪 80 年代中期以来，那不勒斯和坎帕尼亚地区一直遭受将废物倾倒到过度填充的垃圾填埋场的困扰。目的是对位于罗卡雷拉诺（意大利那不勒斯）的一个前洞穴进行特征描述，以便将其最终用于受控垃圾填埋场。通过在 14 个钻孔和 4 个监测井中进行详细的水文地球化学调查，对该地区进行了研究。对位于洞穴中部的露水池塘中的水、沉积物和土壤进行了重金属和有机污染物分析。还对地下含水层进行了调查。调查了从该地点排放的气体的性质。地质调查结果显示，存在大量的复合废物，约有 50 万立方米，堆积厚度达 25.6 米。在某些地方，废物位于含水层的自由表面以下。从钻孔中采集的样本显示，砷、镉、铬、铜、汞、铅、锡、铊和锌的含量超过了干预的法律限制。发现了大量的镉、铅和锌，其含量超过了限值的 50 倍、100 倍和 1870 倍。在许多地方，多环芳烃的负荷极高，为 35 比 1 毫克/千克的阈值。含水层也受到镉、总铬、铜、铁、锰、镍、铅和锌的严重污染，铬和锰的负荷非常高，高达 250-370 倍的限值。发现了高达 62°C 的热气体，其中含有二甲苯和乙苯。结果表明，该地点需要紧急采取恢复措施，以避免危及周边地区和坎帕尼亚平原的含水层。
