Fig. 1
From: PM2.5 constituent exposures and maternal circulatory homocysteine in early pregnancy
Associations of average PM2.5 and constituent exposures during the post-conception period with the LnHcy in all participants in generalized additive models (n = 324). Note: The independent variables included average concentration of PM2.5 or each constituent, Ln5-MeTHF, all demographic characteristics presented in Table 1, temperature, relative humidity, and group (EPL or NEP). The intersections of blue, red, green, and orange dashed lines with the X axis represented the 25th, 50th, 75th, and 90th percentiles of pollutant concentrations, respectively