2022年12月10日 · The carcinogenic health risk assessment of PAHs was estimated through different daily intakes by three pathways: feeding, skin contact, and inhalation. The reference dose (RfD) is the reference dose of the compound fixed by the U.S.EPA.

2024年8月13日 · The webpage discusses the accurate prediction of rat acute oral toxicity and reference dose for polycyclic aromatic hydrocarbons using machine learning models.

2024年8月24日 · 暨南大学莫测辉教授团队向垒教授等利用机器学习人工智能技术，建立了预测多环芳烃（PAHs）及其衍生物大鼠急性经口毒性（LD50）和参考剂量（RfD）的精准模型，阐明了影响PAHs衍生物毒性的关键因子及其作用区间，并开发了基于最优机器学习模型的应用软件 ...

PAHs for which data are available. This variation in toxicological behavior emphasizes the uncertainties associated with the necessary assumptions in deriving RfDs for PAH for which no data exist. It is uncertain if the RfD for any particular, suitably studied, PAH will protect against the possible, but unknown, systemic effects of another PAH.

2023年1月20日 · The results for B [a]P were much lower than the RfD (≤ 0.011 % respect to the RfD value or lower) but the presence of the other PAHs should be considered. For this reason, the sum of the uptake of all target PAHs was compared.

Download scientific diagram | Cancer Slope Factor (CSf) and Reference Dose (RfD) from publication: Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in Commonly Consumed Shellfish from Kula ...

摘要: 为获得更为合理的健康风险评价结果，并辨识对健康风险影响最大的因素，基于蒙特卡罗随机模拟，运用概率风险评价模型，定量评估了中国上海某居民区土壤中16种PAHs对居民的健康风险水平，并对各参数进行敏感性分析.结果表明，土壤中PAHs造成的健康风险服从对数正态分布，总的致癌风险 ...

针对苏南某焦化厂PAHs污染土壤,采用分层土壤健康风险评价模型,对比了2种毒性评估方法确定的PAHs风险、修复目标污染物及土方量的差异,并对引起差异的关键因素进行探讨。

本文以北京首钢石景山厂区污染场地为研究对象, 检测了11种重金属和16种PAHs在表层土壤中的含量, 分析重金属及16种PAHs的混合污染特征.利用污染元素数据结合PMF模型对污染场地内重金属及PAHs来源进行分析, 同时对污染场地的人体健康风险进行了评价, 并分析不同 ...

2019年5月13日 · 摘要: 对我国七大流域水体中16种美国环保署（US EPA）优控多环芳烃（polycyclic aromatic hydrocarbons，PAHs）的质量浓度及其空间分布特征进行了系统地分析和总结，应用物种敏感度分布法（species sensitivity distribution，SSD）评价了8种单体PAHs对水生生物的急性生态风险 ...