Associations of phthalate concentrations in floor dust and multi-surface dust with the interior materials in Japanese dwellings

Abstract

2Phthalates are widely used as plasticizers in numerous products. However, there has been some concern 3 about the various effects they may have on human health. Thus, household phthalate levels are an important 4 public health issue. While many studies have assessed phthalate levels in house dust, the association of these 5 levels with building characteristics has scarcely been examined. The present study investigated phthalate 6 levels in house dust samples collected from the living areas of homes, and examined associations between 7 these phthalate levels and the interior materials. Dust was collected from two portions of the living area: 8 floor dust from the entire floor surface, and multi-surface dust from objects more than 35 cm above the floor. 9The levels of seven phthalates were measured using gas chromatography/mass spectrometry in selective ion 10 monitoring mode. Phthalate levels were higher in multi-surface dust than in floor dust. Among floor dust 11 samples, those from dwellings with compressed wooden flooring had significantly higher levels of di-iso-

Pilot study testing a European human biomonitoring framework for biomarkers of chemical exposure in children and their mothers: experiences in the UK

“…A possible explanation for this phenomenon is higher exposure in children due to more frequent hand-mouth contact or because of unique exposure patterns in children, for example, playing with toys or exposure via food (Angerer et al 2011). In addition, others have reported exposures to phthalates via dust and the use of flooring or wall covering containing polyvinyl chloride (PVC), particularly in children (Ait Bamai et al 2014;Carlstedt et al 2013). For this study, there was no significant difference in phthalate levels in children living in homes with PVC flooring or wall coverings compared to those without PVC.…”

Interactions Among Health Risk Factors and Decision-Making Process in the Design of Built Environments

“…House dust often contains substances that are emitted from construction products, i.e., phthalate esters and other plasticisers emitted from PVC products (Kishi et al 2012;Bamai et al 2014), brominated flame retardants (Kajiwara and Takigami 2016), etc. Bamai et al (2016) estimated phthalate intake from urinary metabolite among Japanese children and house dust levels in living environment.…”

Prenatal di(2-ethylhexyl) phthalate exposure and disruption of adrenal androgens and glucocorticoids levels in cord blood: The Hokkaido Study

“…Eventually, 514 pregnant women (28.6%) were enrolled in this study. Selection of participants included in the analysis was described in our previous study (Araki et al, 2014). Briefly, of the 514 participants, 10 were excluded from the study due to miscarriage, stillbirth, relocation, or voluntary withdrawal prior to delivery.…”

“…MEHP, which is the primary metabolite of DEHP, was measured by gas chromatography-mass spectrometry at Nagoya University. The methods for the preparation of samples and standard solutions, and the instrumental analysis have been described previously (Araki et al, 2014;Jia et al, 2015). The detection limit was 0.278 ng/mL (1 pmol/mL).…”

“…We recently demonstrated that prenatal DEHP exposure resulted in reduced progesterone levels and a reduced testosterone/estradiol (T/E2) ratio in cord blood (Araki et al, 2014). The aims of this study were to examine the effects of prenatal DEHP exposure on adrenal androgens (DHEA and androstenedione) and glucocorticoids (cortisol and cortisone), and to discuss its effects on the steroid hormone profile of infants, including adrenal androgens and glucocorticoids, and sex hormones (progesterone, testosterone, and estradiol) as reported by Araki et al (2014).…”