The current study was developed to evaluate agronomic efficiency and food security of isolated or simultaneous use of two residues—steel slag and fresh or composted poultry litter—in the cultivation of broccoli (Brassica oleracea var. italica). The composition and contribution of toxic and potentially toxic metals by different treatments and contents, translocation, and accumulation of Pb, Cd, Cu, Fe, Mn, and Zn in different plant organs were analyzed. Then, risks to human health associated with consumption of inflorescences were based on the indices of estimated daily intake, noncarcinogenic target hazard quotient, total hazard index (THI), and carcinogenic risk factor (CR), considering adults and children. Steel slag was similar to limestone in terms of the corrective effect of acidity and, despite containing toxic metals, it did not contribute to their higher translocation to inflorescences. Composting favored the concentrations of Pb, Cu, and Zn in poultry litter. The combined use of steel slag and fresh poultry litter and, mainly, composted poultry litter, favored absorption and translocation of Pb for inflorescences, that is, 60.37% and 66.13% of all Pb absorbed, respectively. Consumption of inflorescences from these treatments resulted in the critical THI values of 1.03 and 1.52, respectively, with Pb and Cd being the metals that mostly contributed to the risk. The registered CR was higher than the threshold level of 10⁻⁶. The use of steel slag associated with poultry litter favors contamination of broccoli inflorescences and increases risks to human health due to their consumption.

目前的研究开发，以评估分离或同时使用两个残基，钢渣和新鲜或堆肥家禽垫料，西兰花种植（农学利用率和粮食安全甘蓝变种谷子）。分析了不同植物器官中Pb，Cd，Cu，Fe，Mn和Zn的不同处理方式和含量，易位和积累，对有毒和潜在有毒金属的组成和贡献进行了分析。然后，基于估计的日摄入量，非致癌目标危险商，总危险指数（THI）和致癌危险因素（CR）的指数，并考虑了食用花序，对成人和儿童造成了危害。就酸度的矫正效果而言，钢渣与石灰石相似，尽管含有有毒金属，但它并没有促进其向花序的更高迁移。堆肥有利于家禽垫料中铅，铜和锌的浓度。钢渣和新鲜家禽垫料，主要是堆肥家禽垫料的组合使用，有利于花序对铅的吸收和转运，分别占全部铅吸收的60.37％和66.13％。这些处理消耗的花序分别导致THI的临界值分别为1.03和1.52，其中Pb和Cd是造成这一风险的主要金属。注册的CR高于阈值10^-6。与家禽垫料相关的钢渣的使用有利于花椰菜花序的污染，并由于食用它们而增加对人类健康的风险。