Data for: Regional characteristics of children's blood lead levels in China: a systematic synthesis of national and subnational population data

In total, 261 articles reporting BLL and/or LPR data for Chinese children from 267 prefectural level cities were published between 2001 and 2020. From key reviewed publications, samples were inclined to be from higher infrastructure areas with a tendency for lower BLLs and often sampling did not include prefecture-level city data; without which results were incomplete. Limited and censored data from only large cities does not accurately represent of the situation of the country as a whole; as larger cities with better infrastructure and policies tend to do better when it comes to environmental protection efforts than most small and medium cities in China.2001年至2020年间，共计发表261篇针对中国儿童的研究论文，报道了来自267个地级市的血铅水平（Blood Lead Level, BLL）和/或铅暴露率（Lead Poisoning Rate, LPR）相关数据。经同行评议的核心文献梳理可见，现有研究样本多集中于基础设施更为完善的区域，这类区域的儿童血铅水平普遍偏低；且多数采样方案未覆盖地级市层面的数据，若缺失此类信息则研究结果将不够完整。仅基于大城市的有限截尾数据，无法准确反映全国整体的实际情况。相较于国内绝大多数中小城市，基础设施与政策配套更为完善的大城市在环境保护工作中往往表现更优异。