Uncontrolled Post-Industrial Landfill—Source of Metals, Potential Toxic Compounds, Dust, and Pathogens in Environment—A Case Study

渗滤液 环境化学 枝孢 寡养单胞菌 微生物 化学 细菌 环境科学 生物 食品科学 青霉属 假单胞菌 遗传学
作者
Justyna Szulc,Małgorzata Okrasa,Adriana Nowak,Małgorzata Ryngajłło,Joanna Nizioł,Anna Kuźniar,Tomasz Ruman,Beata Gutarowska
出处
期刊:Molecules [MDPI AG]
卷期号:29 (7): 1496-1496 被引量:1
标识
DOI:10.3390/molecules29071496
摘要

The aim of this case study was the evaluation of the selected metals’ concentration, potential toxic compound identification, cytotoxicity analysis, estimation of the airborne dust concentration, biodiversity, and number of microorganisms in the environment (leachate, soil, air) of the biggest uncontrolled post-industrial landfills in Poland. Based on the results obtained, preliminary solutions for the future management of post-industrial objects that have become an uncontrolled landfill were indicated. In the air, the PM1 fraction dominated, constituting 78.1–98.2% of the particulate matter. Bacterial counts were in the ranges of 9.33 × 101–3.21 × 103 CFU m−3 (air), 1.87 × 105–2.30 × 106 CFU mL−1 (leachates), and 8.33 × 104–2.69 × 106 CFU g−1 (soil). In the air, the predominant bacteria were Cellulosimicrobium and Stenotrophomonas. The predominant fungi were Mycosphaerella, Cladosporium, and Chalastospora. The main bacteria in the leachates and soils were Acinetobacter, Mortierella, Proteiniclasticum, Caloramator, and Shewanella. The main fungi in the leachates and soils were Lindtneria. Elevated concentrations of Pb, Zn, and Hg were detected. The soil showed the most pronounced cytotoxic potential, with rates of 36.55%, 63.08%, and 100% for the A-549, Caco-2, and A-549 cell lines. Nine compounds were identified which may be responsible for this cytotoxic effect, including 2,4,8-trimethylquinoline, benzo(f)quinoline, and 1-(m-tolyl)isoquinoline. The microbiome included bacteria and fungi potentially metabolizing toxic compounds and pathogenic species.
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