نتایج جستجو برای: phthalate contamination

تعداد نتایج: 56823  

Journal: :Environmental toxicology and chemistry 2012
Michael G Ikonomou Barry C Kelly Joel D Blair Frank A P C Gobas

A series of interlaboratory comparison exercises were conducted to assess the accuracy of dialkyl phthalate ester (DPE) concentration measurements in environmental and biological samples. Five laboratories participated in analyses to determine DPE concentrations in standard test solutions; marine sediments; three certified reference materials, including CARP-2 (fish muscle) and BCR-07 (fortifie...

Journal: :Journal of environmental monitoring : JEM 2012
Xinghui Xia Ju Zhang Yujuan Sha Jianbing Li

The equilibrium partitioning (EqP) method has been applied to establish sediment quality criteria (SQC); however, it does not consider the nonlinear irreversible sorption of many organic contaminants. In this research, the sorption and desorption of two phthalate esters (PAEs), dimethyl phthalate (DMP) and di(2-ethylhexyl) phthalate (DEHP), in four natural sediments collected from the Yangtze R...

Journal: :Applied and environmental microbiology 2007
Ki Young Choi Gerben J Zylstra Eungbin Kim

Rhodococcus sp. strain DK17 exhibits a catabolite repression-like response when provided simultaneously with benzoate and phthalate as carbon and energy sources. Benzoate in the medium is depleted to detection limits before the utilization of phthalate begins. The transcription of the genes encoding benzoate and phthalate dioxygenase paralleled the substrate utilization profile. Two mutant stra...

بابانژاد, اسماعیل, علا, علیرضا, محمد پور, رضا علی, یوسفی, ذبیح اله,

Background and purpose: Consumption of bottled water is increasing in the world and there are many concerns about the migration of phthalate esters into bottled water. These compounds are risky for consumers. This study investigated the concentration of phthalate esters in bottled water in polyethylene terephthalate containers in different storage conditions. Materials and methods: Bottled wat...

2008
Jennifer J. Adibi Robin M. Whyatt Paige L. Williams Antonia M. Calafat David Camann Robert Herrick Heather Nelson Hari K. Bhat Frederica P. Perera Manori J. Silva Russ Hauser

BACKGROUND Although urinary concentrations of phthalate metabolites are frequently used as biomarkers in epidemiologic studies, variability during pregnancy has not been characterized. METHODS We measured phthalate metabolite concentrations in spot urine samples collected from 246 pregnant Dominican and African-American women. Twenty-eight women had repeat urine samples collected over a 6-wee...

2014
Sabit Cakmak Robert E. Dales Chris Hebbern Gurusankar Saravanabhavan

OBJECTIVE To investigate the influence of phthalate exposure on lung function in the Canadian population. METHODS We tested the association between 1-second forced expiratory volume (FEVl), forced vital capacity (FVC), and urinary phthalate metabolite levels in a nationally representative sample of 3147, from 6 to 49 years old. RESULTS An interquartile increase in mono-n-butyl phthalate was...

2014
Subin Park Bung-Nyun Kim Soo-Churl Cho Yeni Kim Jae-Won Kim Ju-Young Lee Soon-Beom Hong Min-Sup Shin Hee Jeong Yoo Hosub Im Jae Hoon Cheong Doug Hyun Han

Although there is some evidence supporting the existence of an association between prenatal maternal or postnatal child's urine phthalate metabolite concentrations and poor attentional performances, the interaction between urine phthalate metabolite levels and genetic variation for neuropsychological deficit of attention-deficit hyperactivity disorder (ADHD) has not been examined. The aim of th...

Journal: :Environmental Health Perspectives 2004
Manori J Silva Dana B Barr John A Reidy Nicole A Malek Carolyn C Hodge Samuel P Caudill John W Brock Larry L Needham Antonia M Calafat

We measured the urinary monoester metabolites of seven commonly used phthalates in approximately 2,540 samples collected from participants of the National Health and Nutrition Examination Survey (NHANES), 1999-2000, who were greater than or equal to 6 years of age. We found detectable levels of metabolites monoethyl phthalate (MEP), monobutyl phthalate (MBP), monobenzyl phthalate (MBzP), and mo...

Journal: :Environmental Health Perspectives 2005
Shanna H. Swan Katharina M. Main Fan Liu Sara L. Stewart Robin L. Kruse Antonia M. Calafat Catherine S. Mao J. Bruce Redmon Christine L. Ternand Shannon Sullivan J. Lynn Teague

Prenatal phthalate exposure impairs testicular function and shortens anogenital distance (AGD) in male rodents. We present data from the first study to examine AGD and other genital measurements in relation to prenatal phthalate exposure in humans. A standardized measure of AGD was obtained in 134 boys 2-36 months of age. AGD was significantly correlated with penile volume (R = 0.27, p = 0.001)...

Journal: :Environmental toxicology and chemistry 2001
D J Call T P Markee D L Geiger L T Brooke F A VandeVenter D A Cox K I Genisot K A Robillard J W Gorsuch T F Parkerton M C Reiley G T Ankley D R Mount

Tests were performed with the freshwater invertebrates Hyalella azteca, Chironomus tentans, and Lumbriculus variegatus to determine the acute toxicity of six phthalate esters, including dimethyl phthalate (DMP), diethyl phthalate (DEP), di-n-butyl phthalate (DBP), butylbenzyl phthalate (BBP), di-n-hexyl phthalate (DHP), and di-2-ethylhexyl phthalate (DEHP). It was possible to derive 10-d LC50 (...

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