The overall goal of this work was to determine the concentration levels and the potential ecological risks of 30 polycyclic aromatic hydrocarbons in the Persian Gulf sediments, Iran. The study also predicted the bioaccumulation of PAHs using the Monte Carlo simulation. For these goals, 68 surface sediment samples were collected from the Persian Gulf in January 2017. Then, the experiments were performed with Soxhlet system, chromatographic column and GC-MS instrument. According to the Canadian Sediment Quality Guidelines, 35.29% of sampling sites exhibited high potential adverse biological effects and 79.41% of samples have a low probability of toxicity. The mean bioaccumulated concentrations of carcinogenic PAHs in the Persian Gulf were predicted as 207.78 ± 262.23, 116.06 ± 146.47 and 69.26 ± 87.41 ng g^–1 for mollusks, shrimps and crabs, respectively. The mean Toxic Equivalency and Mutagenic Equivalent Quotient for sediments was 702.06 ± 1012.37 and 500.37 ± 665.71 ng g⁻¹, respectively. The 95th percentile carcinogenic and non-carcinogenic risks calculated for children and adults were lower than the threshold values of 10⁻⁶ and 1.0, respectively, revealing no potential health risk. The highest potential risks for toxicity were observed at sampling sites close to the Nowruz oil field and Mahshahr petrochemical economic zone based on the highest TEQcarc and MEQcarc values in this area.

这项工作的总体目标是确定伊朗波斯湾沉积物中30种多环芳烃的浓度水平和潜在的生态风险。该研究还使用蒙特卡洛模拟预测了PAHs的生物积累。为了实现这些目标，2017年1月从波斯湾采集了68个地表沉积物样品。然后，使用Soxhlet系统，色谱柱和GC-MS仪器进行了实验。根据《加拿大沉积物质量指南》，有35.29％的采样点表现出较高的潜在不良生物学影响，而79.41％的采样则具有较低的毒性可能性。预测波斯湾地区致癌的PAHs的平均生物累积浓度为207.78±262.23、116.06±146.47和69.26±87.41 ng g ^–1分别用于软体动物，虾和螃蟹。沉积物的平均毒性当量和诱变当量商分别为702.06±1012.37和500.37±665.71 ng g ^-1。为儿童和成人计算的第95％致癌和非致癌风险分别低于阈值10 ^-6和1.0，表明没有潜在的健康风险。根据该地区的最高TEQcarc和MEQcarc值，在靠近诺鲁兹油田和马什哈尔石化经济区的采样点观察到最高的潜在毒性风险。