Tong Ruipeng, Liu Jiefeng, Ma Xiaofei, Yang Yunyun, Shao Guohua, Li Jianfeng, Shi Meng
School of Resources & Safety Engineering, China University of Mining and Technology, Beijing, China.
Beijing Key Laboratory of Occupational Safety and Health, Beijing Municipal Institute of Labour Protection, Beijing, China.
Arch Environ Occup Health. 2020;75(5):260-273. doi: 10.1080/19338244.2019.1626330. Epub 2019 Jun 18.
To investigate the contamination levels of respirable dust released in the work environment and the induced workers' health risk at a coal-fired power plant, we collected 405 dust samples from different dusty workstations by personal sampling during the coal-fired power generation process. Then, an inhalation risk assessment model from the USEPA was combined with the Monte Carlo simulation method to quantitatively evaluate the health risk caused by dust inhalation. Of 10 workstations researched, the dust concentration in the most workstations exceeded the prescribed occupational exposure limit. Workers engaged in ash removal suffered the highest health risk at 4.08 × 10 ± 2.85 × 10 (95% CI), closely followed by those involved in other job categories. The results can contribute to the formulation of targeted dust prevention measures and implementation of risk management for the coal-fired power sector.
为调查某燃煤发电厂工作环境中可吸入粉尘的污染水平以及由此引发的工人健康风险，我们在燃煤发电过程中通过个人采样从不同扬尘工作站采集了405份粉尘样本。然后，将美国环境保护局（USEPA）的吸入风险评估模型与蒙特卡洛模拟方法相结合，以定量评估吸入粉尘所致的健康风险。在所研究的10个工作站中，大多数工作站的粉尘浓度超过了规定的职业接触限值。从事除灰工作的工人健康风险最高，为4.08×10±2.85×10（95%置信区间），其他工作类别的工人紧随其后。研究结果有助于为燃煤发电行业制定针对性的粉尘预防措施并实施风险管理。
