Correction

It is hereby declared that the original article, with the title “Separate and Combained Associations of PM_2.5 Exposure and Smoking with Dementia and Cognitive Impairment” (Lu Cui, Zhihui Wang, Yuhong Liu, Linlin Ma, Shige Qi, Ran An, Xi Chen, Haoyan Guo, and Yuxiang Yan), published in Biomedical and Environmental Sciences in February 2025, Volume 38(2), page 194–205, should be corrected to “Separate and Combined Associations of PM_2.5 Exposure and Smoking with Dementia and Cognitive Impairment”.