Associations between Personal PM2.5 Elemental Constituents and Decline of Kidney Function in Older Individuals: the China BAPE Study
- 15 September 2020
- journal article
- research article
- Published by American Chemical Society (ACS) in Environmental Science & Technology
- Vol. 54 (20), 13167-13174
- https://doi.org/10.1021/acs.est.0c04051
Abstract
Long-term exposure to fine particulate matter (PM2.5) is associated with kidney dysfunction. However, few studies have investigated acute effects of PM2.5 elemental constituents on renal function. We evaluated associations between personal PM2.5 and its elemental constituents and kidney function, assessed by estimated glomerular filtration rate (eGFR) in Biomarkers of Air Pollutants Exposure in the Chinese aged 60-69 study. Seventy-one older individuals were visited monthly between September 2018 and January 2019. Each participant wore a PM2.5 monitor for 72 h, responded to a questionnaire, and underwent a physical examination with blood sampling. Linear mixed-effects models were used to estimate associations between personal PM2.5 exposure and eGFR. We found significant changes in eGFR from −1.69% [95% confidence interval (CI): −3.34%, −0.01%] to −3.27% (95% CI: −5.04%, −1.47%) were associated with interquartile range (IQR) increases in individual PM2.5 exposures at various lag periods (7−12 h, 13−24 h, 0−24 h, 25−48 h, and 49−72 h). An IQR increase in 72 h moving averages of copper, manganese, and titanium in personal PM2.5 corresponded to −2.34% (95% CI: −3.67%, −0.99%) to −4.56% (95% CI: −7.04%, −2.00%) percent changes in eGFR. Personal PM2.5 and some of its elemental constituents are inversely associated with eGFR in older individuals.Keywords
Funding Information
- National Research Program for Key Issues in Air Pollution Control (DGGG0401)
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