Search results for " human scalp hair"

showing 3 items of 3 documents

Gender as a key factor in trace metal and metalloid content of human scalp hair. A multi-site study

2016

This multi-site study discusses the content of metals and metalloids (MM) in scalp hair of children, living in different environmental contexts, with the purpose of verifying if hair level of some MM is distinctively gender-specific. A total of 943 hair samples (537 females and 406 males) from adolescents were analysed for their content of Al, As, Ba, Cd, Co, Cr, Cu, Li, Mn, Mo, Ni, Pb, Rb, Sb, Se, Sr, U, V and Zn. Elemental quantification was performed by ICP-MS. The obtained data identified different metal distributions in adolescent girls which exhibited significantly higher hair concentrations of some trace metals, especially Sr, Zn and Ni, than boys. On the base of the median value, hai…

Male0301 basic medicineCoverage intervals.Environmental EngineeringAdolescentHair analysichemistry.chemical_elementVolcanic Eruptions010501 environmental sciences01 natural sciencesMiningMetalMetals and metalloids in human scalp hair03 medical and health sciencesSex FactorsAnimal sciencemedicineHumansEnvironmental ChemistryTrace metalChildWaste Management and DisposalMetalloids0105 earth and related environmental sciencesintegumentary systemChemistryUrbanizationMulti siteGender related differencePollutionTrace ElementsSettore GEO/08 - Geochimica E VulcanologiaNickel030104 developmental biologymedicine.anatomical_structureItalyMetalsvisual_artScalpHuman Biomonitoringvisual_art.visual_art_mediumEnvironmental PollutantsFemaleMetalloidEnvironmental MonitoringHairScience of The Total Environment
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Trace elements in scalp hair of children living in differing environmental contexts in Sicily (Italy)

2012

We present here data about trace elements in human scalp hair samples to test whether they are valuable to reflect environmental exposure and contamination by trace elements. The study compares contents of trace elements in scalp hair from a total of 336 children, aged 11–13 years old, living in various geographical areas of Sicily (southern Italy) characterized by differing environmental conditions. Nineteen elements (Al, As, Ba, Cd, Co, Cr, Cu, Li, Mn, Mo, Ni, Pb, Rb, Sb, Se, Sr, U, V and Zn) were determined by inductively coupled plasma mass spectrometry (ICP-MS). Coverage intervals (CI) formulated by the elemental composition of hair samples from the Palermo subjects were compared with …

MaleAdolescentHealth Toxicology and MutagenesisToxicologyArsenicmedicineHumansStatistical analysisChildSicilyInductively coupled plasma mass spectrometryPharmacologyElemental compositionChemistryIndustrial areaGeneral MedicineEnvironmental exposureTrace elements human scalp hair biological monitoring metals in hair chemiometric analysis.Settore GEO/08 - Geochimica E Vulcanologiamedicine.anatomical_structureMetalsEnvironmental chemistryScalpEnvironmental PollutantsFemaleEnvironmental MonitoringHairEnvironmental Toxicology and Pharmacology
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Penalized linear discriminant analysis and Discrete AdaBoost to distinguish human hair metal profiles: The case of adolescents residing near Mt. Etna

2016

The research focus of the present paper was twofold. First, we tried to document that human intake of trace elements is influenced by geological factors of the place of residence. Second, we showed that the elemental composition of human hair is a useful screening tool for assessing people's exposure to potentially toxic substances. For this purpose, we used samples of human hair from adolescents and applied two robust statistical approaches. Samples from two distinct geological and environmental sites were collected: the first one was characterized by the presence of the active volcano Mt. Etna (ETNA group) and the second one lithologically made up of sedimentary rocks (SIC group). Chemica…

MaleEnvironmental EngineeringAdolescent010504 meteorology & atmospheric sciencesHealth Toxicology and MutagenesisStatistical analysiMineralogy010501 environmental sciences01 natural sciencesEnvironmental riskHumansArea of residenceEnvironmental ChemistryScreening toolAdaBoostChildPenalized linear discriminant analysis and Discrete AdaBoost0105 earth and related environmental sciencesElemental compositionDecision TreesHair analysisChemistry (all)Public Health Environmental and Occupational HealthMetal profiles in human scalp hairDiscriminant AnalysisChemical dataGeneral MedicineGeneral ChemistryLinear discriminant analysisPollutionSettore GEO/08 - Geochimica E VulcanologiaItalyMetalsBiomonitoringTrace elementEnvironmental PollutantsFemaleMetals and metalloids risk assessmentSettore SECS-S/01 - StatisticaGeologyHair
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