Kamranifar Mohammad, Pourzamani Hamidreaza, Khosravi Rasoul, Ranjbar Gholamhassan, Ebrahimpour Karim
Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran.
Department of Environmental Health Engineering, School of Health, Birjand University of Medical Sciences, Birjand, Iran.
Sci Rep. 2025 Mar 12;15(1):8459. doi: 10.1038/s41598-025-92512-9.
The release of petroleum hydrocarbons (PHCs) into the environment is primarily linked to petroleum industry activities, including drilling, exploration, storage, and related processes. The spillage of PHCs into the environment poses significant threats to ecosystems and can lead to serious risks to human health, the environment, and plants. This research aims to investigate the phytotoxic effect of petroleum sludge on the germination and growth characteristics of Salicornia sinus-persica. This study was conducted in a greenhouse using pots to examine the effects of varying concentrations of PHCs on plant growth. Petroleum sludge at concentrations of 0, 0.2, 1, 2, 4, and 8% (w/w) was used to prepare PHC-contaminated soils. In some pots, biochar, and vermicompost were added to them in order to evaluate the effect of soil amendments on plants. The study evaluated several parameters, including seed germination, fresh and dry biomass weight, number of lateral stems, stem and root lengths, and chlorophyll a, b, total chlorophyll, and carotenoids. The results of this study showed that petroleum contamination had negative effects on the growth parameters of Salicornia sinus persica and photosynthetic pigments. However, the addition of biochar and vermicompost as soil amendments improved plant growth under contaminated conditions. Salicornia dried after 1 month in oil-contaminated soils with a concentration of 8% in all soil treatments, which indicated its high toxicity to the plant.
石油碳氢化合物（PHCs）进入环境主要与石油工业活动有关，包括钻探、勘探、储存及相关过程。PHCs泄漏到环境中对生态系统构成重大威胁，并可能给人类健康、环境和植物带来严重风险。本研究旨在调查石油污泥对盐角草发芽和生长特性的植物毒性效应。该研究在温室中使用花盆进行，以检验不同浓度的PHCs对植物生长的影响。采用浓度为0、0.2%、1%、2%、4%和8%（w/w）的石油污泥来制备受PHCs污染的土壤。在一些花盆中添加了生物炭和蚯蚓堆肥，以评估土壤改良剂对植物的影响。该研究评估了几个参数，包括种子发芽率、鲜重和干重、侧枝数量、茎和根的长度，以及叶绿素a、叶绿素b、总叶绿素和类胡萝卜素。本研究结果表明，石油污染对盐角草的生长参数和光合色素有负面影响。然而，添加生物炭和蚯蚓堆肥作为土壤改良剂可在污染条件下改善植物生长。在所有土壤处理中，盐角草在浓度为8%的油污土壤中1个月后干枯，这表明其对该植物具有高毒性。
