PM_2.5是指空气动力学当量直径≤2.5 μm的细颗粒物。新近的研究发现，长期PM_2.5暴露可增加慢性肾脏病（CKD）发病，加速肾功能下降，增加CKD患者并发症风险。作者就PM_2.5在CKD领域的研究现状进行综述。

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