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1.
Article in English | MEDLINE | ID: mdl-29186834

ABSTRACT

Background: Phthalates are chemicals which are widespread in the environment. Although the impacts on health of such exposure are unclear, there is evidence of a possible impact on the incidence of a diverse range of diseases. Monitoring of human exposure to phthalates is therefore important. This study aimed to determine the extent of phthalate exposure among mothers and their children in both rural and urban areas in Ireland, and to identify factors associated with elevated concentrations. It formed part of the 'Demonstration of a study to Co-ordinate and Perform Human Biomonitoring on a European Scale' (DEMOCOPHES) pilot biomonitoring study. Methods: the concentration of phthalate metabolites were determined from a convenience sample of 120 mother/child pairs. The median age of the children was 8 years. A questionnaire was used to collect information regarding lifestyle and environmental conditions of the children and mothers. Rigorous quality assurance within DEMOCOPHES guaranteed the accuracy and international comparability of results. Results: Phthalate metabolites were detected in all of the samples from both children and mothers. Concentrations were significantly higher in respondents from families with lower educational attainment and in those exposed to such items as polyvinyl chloride (PVC), fast food and personal care products (PCP). Conclusions: The study demonstrates that human biomonitoring for assessing exposure to phthalates can be undertaken in Ireland and that the exposure of the population is widespread. Further work will be necessary before the consequences of this exposure are understood.


Subject(s)
Environmental Exposure/analysis , Environmental Monitoring/methods , Environmental Pollutants/urine , Mothers/statistics & numerical data , Phthalic Acids/urine , Polyvinyl Chloride/analysis , Adult , Child , Child, Preschool , Female , Humans , Ireland , Male , Middle Aged , Rural Population , Surveys and Questionnaires , Urban Population/statistics & numerical data
2.
Environ Res ; 141: 15-23, 2015 Aug.
Article in English | MEDLINE | ID: mdl-25454101

ABSTRACT

Within the European Environment and Health Action Plan an initiative to establish a coherent human biomonitoring approach in Europe was started. The project COPHES (COnsortium to Perform Human biomonitoring on a European Scale ) developed recommendations for a harmonized conduct of a human biomonitoring (HBM) survey which came into action as the pilot study DEMOCOPHES (DEMOnstration of a study to COordinate and Perform Human biomonitoring on a European Scale). Seventeen European countries conducted a survey with harmonized instruments for, inter alia, recruitment, fieldwork and sampling, in autumn/winter 2011/2012. Based on the countries' experiences of conducting the pilot study, following lessons learnt were compiled: the harmonized fieldwork instruments (basic questionnaire, urine and hair sampling) turned out to be very valuable for future HBM surveys on the European scale. A school approach was favoured by most of the countries to recruit school-aged children according to the established guidelines and country specific experiences. To avoid a low participation rate, intensive communication with the involved institutions and possible participants proved to be necessary. The communication material should also include information on exclusion criteria and offered incentives. Telephone contact to the participants the day before fieldwork during the survey can prevent the forgetting of appointments and first morning urine samples. To achieve comparable results on the European scale, training of interviewers in all issues of recruitment, fieldwork and sampling through information material and training sessions is crucial. A survey involving many European countries needs time for preparation and conduct. Materials for quality control prepared for all steps of recruitment, fieldwork and sampling proved to be important to warrant reliable results.


Subject(s)
Environmental Health/methods , Environmental Health/organization & administration , Environmental Monitoring/methods , International Cooperation , Program Development , Research Design/standards , Electronic Data Processing , Environmental Health/standards , Environmental Monitoring/standards , Europe , Guidelines as Topic , Health Personnel/standards , Humans , Informed Consent , Interprofessional Relations , Pilot Projects , Quality Control , Research Design/legislation & jurisprudence , Sampling Studies , Surveys and Questionnaires/standards
3.
Int J Environ Res Public Health ; 11(9): 9760-75, 2014 Sep 17.
Article in English | MEDLINE | ID: mdl-25233018

ABSTRACT

BACKGROUND: Monitoring of human exposure to mercury is important due to its adverse health effects. This study aimed to determine the extent of mercury exposure among mothers and their children in Ireland, and to identify factors associated with elevated levels. It formed part of the Demonstration of a study to Coordinate and Perform Human Biomonitoring on a European Scale (DEMOCOPHES) pilot biomonitoring study. METHODS: Hair mercury concentrations were determined from a convenience sample of 120 mother/child pairs. Mothers also completed a questionnaire. Rigorous quality assurance within DEMOCOPHES guaranteed the accuracy and international comparability of results. RESULTS: Mercury was detected in 79.2% of the samples from mothers, and 62.5% of children's samples. Arithmetic mean levels in mothers (0.262 µg/g hair) and children (0.149 µg /g hair) did not exceed the US EPA guidance value. Levels were significantly higher for those with higher education, and those who consumed more fish. CONCLUSIONS: The study demonstrates the benefit of human biomonitoring for assessing and comparing internal exposure levels, both on a population and an individual basis. It enables the potential harmful impact of mercury to be minimised in those highly exposed, and can therefore significantly contribute to population health.


Subject(s)
Environmental Exposure , Environmental Pollutants/metabolism , Mercury/metabolism , Adult , Child , Child, Preschool , Environmental Monitoring , Female , Hair/chemistry , Humans , Ireland , Male , Mercury/analysis , Middle Aged
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