Figure 1

Blood-Hg levels for each visit (n = 56). ^a Blood-Hg values in μg/l. Medians are middle lines within box. Top and bottom of box represents upper and lower quartile values, respectively. Upper and lower whiskers represent sample maximum and minimum values, respectively. Values marked with “°” and “*” are outliers as defined by being 1.5x and 3x the interquartile range, respectively. Four (25.1, 29.3, 35.0 and 44.3), three (23.7, 24.3 and 28.2) and one (33.9) blood-Hg values are not depicted for the 1^st, 2^nd and 3^rd visits, respectively, as they are off the scale provided. Distribution mean values do not differ significantly (p <0.05). Horizontal line represents 5.8 μg/l blood-Hg (the RfD equivalent).