Paraben Levels in an Urban Community of Western Canada

Table 2

Urinary concentrations of parabens reported from Puerto Rico Protect study [23] and Infertility clinic patients [24]. All units are μg/L.

Paraben	Puerto Rico—105 pregnant women aged 18–40 years [23]		Infertility clinic—408 women aged 20.9–46.7 years [24]		Infertility clinic—245 men aged 23.9–56.8 years [24]
	50% percentile	95% percentile	50% percentile	75% percentile	50% percentile	75% percentile
Methyl paraben	153	1,590	155	422	29	96.7
Propyl paraben	36.7	493	34.3	118	3.1	16.8
Butyl paraben	0.4	36.4	1.20	7.65	<LOD	0.50

<LOD means below limit of detection.