Michigan Pb Mapping and Analysis Update Using 2017-2019 BLL Data
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This analysis applied 2017-2019 childhood blood lead level (BLL) data to the existing mapping methodology established in Xue et al. paper published in EHP in 2022 and compared the results to 2014-2016. There was moderate statistical agreement between the spatial analyses for 2014-2016 and 2017-2019. The top 20th percentile of elevated BLL census tracts for 2017-2019 were identified by at least 1 of the 3 Pb exposure indices based on housing age and sociodemographics. There were 152 unique census tracts not identified by any of the three Pb exposure indices for 2017-2019, with 56 in common with 2014-2016. Specific census tract numbers are identified in the Excel spreadsheet that we intend to share with EPA Region 5 and MDHHS for follow-up actions.