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[PMID]:27776225
[Au] Autor:Matt F; Cole-Hunter T; Donaire-Gonzalez D; Kubesch N; Martínez D; Carrasco-Turigas G; Nieuwenhuijsen M
[Ad] Endereço:ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain; Rudolf Boehm Institute of Pharmacology and Toxicology, PGS Toxicology and Environmental Protection, University of Leipzig, Leipzig, Germany; Biological Safety & Risk Management, Institute Straumann AG, Basel,
[Ti] Título:Acute respiratory response to traffic-related air pollution during physical activity performance.
[So] Source:Environ Int;97:45-55, 2016 12.
[Is] ISSN:1873-6750
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Physical activity (PA) has beneficial, whereas exposure to traffic related air pollution (TRAP) has adverse, respiratory effects. Few studies, however, have examined if the acute effects of TRAP upon respiratory outcomes are modified depending on the level of PA. OBJECTIVES: The aim of our study was to disentangle acute effects of TRAP and PA upon respiratory outcomes and assess the impact of participants TRAP pre-exposure. METHODS: We conducted a real-world crossover study with repeated measures of 30 healthy adults. Participants completed four 2-h exposure scenarios that included either rest or intermittent exercise in high- and low-traffic environments. Measures of respiratory function were collected at three time points. Pre-exposure to TRAP was ascertained from land-use-modeled address-attributed values. Mixed-effects models were used to estimate the impact of TRAP and PA on respiratory measures as well as potential effect modifications. RESULTS: We found that PA was associated with a statistically significant increases of FEV (48.5mL, p=0.02), FEV /FVC (0.64%, p=0.005) and FEF (97.8mL, p=0.02). An increase in exposure to one unit (1µg/m ) of PM was associated with a decrease in FEV (-1.31mL, p=0.02) and FVC (-1.71mL, p=0.01), respectively. On the other hand, for an otherwise equivalent exposure an increase of PA by one unit (1%Heart rate max) was found to reduce the immediate negative effects of particulate matter (PM) upon PEF (PM , 0.02L/min, p=0.047; PM , 0.02L/min p=0.02; PM , 0.03L/min, p=0.02) and the several hours delayed negative effects of PM upon FVC (PM , 0.11mL, p=0.02). The negative impact of exposure to TRAP constituents on FEV /FVC and PEF was attenuated in those participants with higher TRAP pre-exposure levels. CONCLUSIONS: Our results suggest that associations between various pollutant exposures and respiratory measures are modified by the level of PA during exposure and TRAP pre-exposure of participants.
[Mh] Termos MeSH primário: Poluentes Atmosféricos/toxicidade
Poluição do Ar/efeitos adversos
Exercício
Material Particulado/toxicidade
Respiração/efeitos dos fármacos
Emissões de Veículos/toxicidade
[Mh] Termos MeSH secundário: Adulto
Poluentes Atmosféricos/análise
Poluição do Ar/análise
Estudos Cross-Over
Feminino
Frequência Cardíaca/efeitos dos fármacos
Seres Humanos
Masculino
Meia-Idade
Modelos Teóricos
Veículos Automotores
Material Particulado/análise
Testes de Função Respiratória
Emissões de Veículos/análise
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Air Pollutants); 0 (Particulate Matter); 0 (Vehicle Emissions)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:180311
[Lr] Data última revisão:
180311
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161025
[St] Status:MEDLINE


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[PMID]:29446577
[Au] Autor:Mylnikova IV
[Ti] Título:[Hygienic assessment of intraschool environment in rural and urban secondary school institutions].
[So] Source:Gig Sanit;95(12):1193-7, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:The purpose of the research is to assess the intra-environment indices in urban and rural secondary schools. In the course of special studies there was given the hygienic assessment of the climate, illumination and air quality of classrooms. In classrooms in rural schools microclimate indices were established to fail to meet hygienic requirements mainly on the temperature and humidity parameters. In rural schools, the temperature was decreased to 16-17 °C in 19.0 ± 8.6% of classrooms, humidity was elevated to 63.1% in 25.7 ± 7.4% of classrooms. Among urban schools the humidity in 49.6 ± 4.4% of classrooms reduced to 23.3 ± 0.3%, in 20.8 ± 5.4% of offices it was increased to 71.9 ± 0.9%. The coefficient of the natural illumination in rural schools has been reduced to 0.86-1.4% in 33.9 ± 14.2% of classrooms. In 25.1 ± 2.3% of classrooms in urban schools the level of natural light ratio was below the normative values and varied in the range of 0.32-1.3%. It is noted that in the offices of informatics natural light indices are significantly lower than in the classrooms for core subjects. The artificial lighting in urban schools was found to be lower than hygienic standards on the desks by 1.9 times, 2.2 times - at the board. There were obtained statistically significant handshaking health problems of urban schoolchildren due to intraenvironmental factors. The c dimate in surveyed gyms in rural schools is different in the low temperature and high humidity. The hygienic assessment of the air pollution classrooms' medium was executed for a range of chemicals: formaldehyde, carbon monoxide, nitrogen dioxide, sulfur dioxide, particulate matter. Concentrations of formaldehyde; nitrogen dioxide, suspended solids in the air in classrooms in urban schools appeared to be higher than in rural schools. Carbon monoxide concentrations in classrooms in rural schools was found to exceed their values in urban schools. The air in classrooms of the one of the cities was found to be differed by a specific atmosphere for its chemical - hydrogen fluoride, in concentrations exceeding the maximum allowed concentration by 3-3.5 times.
[Mh] Termos MeSH primário: Poluição do Ar em Ambientes Fechados
Calefação
Iluminação
Serviços de Saúde Escolar
[Mh] Termos MeSH secundário: Adolescente
Poluentes Atmosféricos/efeitos adversos
Poluentes Atmosféricos/análise
Poluição do Ar em Ambientes Fechados/efeitos adversos
Poluição do Ar em Ambientes Fechados/análise
Poluição do Ar em Ambientes Fechados/estatística & dados numéricos
Criança
Monitoramento Ambiental/métodos
Monitoramento Ambiental/estatística & dados numéricos
Feminino
Calefação/métodos
Calefação/estatística & dados numéricos
Seres Humanos
Iluminação/métodos
Iluminação/estatística & dados numéricos
Masculino
Concentração Máxima Permitida
Material Particulado/administração & dosagem
Material Particulado/análise
Saúde da População Rural/estatística & dados numéricos
Serviços de Saúde Escolar/organização & administração
Serviços de Saúde Escolar/estatística & dados numéricos
Instituições Acadêmicas/estatística & dados numéricos
Sibéria/epidemiologia
Saúde da População Urbana/estatística & dados numéricos
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Air Pollutants); 0 (Particulate Matter)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180216
[St] Status:MEDLINE


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[PMID]:29446576
[Au] Autor:Makarov OA; Zimina AN; Nenakhova EV
[Ti] Título:[Ambient air pollution of territories of children preschool institutions by emissions of vehicle components and health of children population].
[So] Source:Gig Sanit;95(12):1188-92, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:The aim of this study was the assessment of levels of pollution of territories of preschool educational institutions (PEI) by components of vehicle emissions, in dependence on their locations relatively to highways with different traffic load and, in this regard, the assessment of children health according to the incidence on the seeking medical advice. To achieve this goal there were solved following tasks: to assess air pollution levels of PEI territories by components of vehicle emissions; to evaluate levels and the structure of morbidity rate according to seeking medical advice by children attending observed PEI. In the article there is presented the evaluation of air pollution levels of the components of vehicle emissions territories 4 PEI of the city of Irkutsk located near to highways with different intensity the road transport load. The research results were obtained with the use of «Methodics for the determination vehicle emissions for summary calculations of ambient air pollution in cities¼, which allows to determine the maximum emissions of a moving vehicle per time unit (g/s) for the main combustion components and with following use of software «Superhighway -city¼ to calculate surface concentrations of considered pollutants in the surface ambient air layer (1 m) in MPC proportions. The highest levels of contamination on the content of nitric oxide and benzo- (a)-pyrene (4 and 6,5 MPC respectively) are registered in the territories adjacent to the PEI motorways with high load tracking. To assess the morbidity rate according to seeking medical advice by children attending PEI with different road transport load there were used records from outpatient medical cards «Medical card of the child¼ (f.112/y). Morbidity rate according to seeking medical advice was evaluated in dynamics throughout five years and calculated per 1000 cases. The total sample size accounted for 670 children. The highest morbidity incidence rate levels according both to seeking medical advice and the class of respiratory diseases were recorded in PEI located in close proximity to the highway with a high load of vehicle transport.
[Mh] Termos MeSH primário: Poluição do Ar
Doença Ambiental
Material Particulado
Serviços de Saúde Escolar
Emissões de Veículos
[Mh] Termos MeSH secundário: Poluição do Ar/efeitos adversos
Poluição do Ar/análise
Poluição do Ar/prevenção & controle
Automóveis/classificação
Automóveis/normas
Benzo(a)pireno/análise
Saúde da Criança
Pré-Escolar
Doença Ambiental/diagnóstico
Doença Ambiental/epidemiologia
Doença Ambiental/etiologia
Doença Ambiental/prevenção & controle
Monitoramento Ambiental/métodos
Poluição Ambiental/efeitos adversos
Poluição Ambiental/análise
Poluição Ambiental/estatística & dados numéricos
Seres Humanos
Óxido Nítrico/análise
Material Particulado/efeitos adversos
Material Particulado/análise
Serviços de Saúde Escolar/organização & administração
Serviços de Saúde Escolar/estatística & dados numéricos
Sibéria/epidemiologia
Emissões de Veículos/análise
Emissões de Veículos/prevenção & controle
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Particulate Matter); 0 (Vehicle Emissions); 31C4KY9ESH (Nitric Oxide); 3417WMA06D (Benzo(a)pyrene)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180216
[St] Status:MEDLINE


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[PMID]:29431356
[Au] Autor:Karelin AO; Lomtev AY; Mozzhukhina NA; Yeremin GB; Nikonov VA
[Ti] Título:[Methodical problems of monitoring of fine particulate matters in atmospheric air of residential areas].
[So] Source:Gig Sanit;95(10):985-8, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:Inhalation of fine particulate matters (PM and PM ) poses a threat for the health of population. Purpose of the study the analysis of the monitoring of fine particulate matters in the atmospheric air of Saint-Petersburg and identification of the main problems of the monitoring. Research methods methods of scientific hypothetical deductive cognition, sanitary-statistical methods, general logical methods and approaches of researches: analysis, synthesis, abstracting, generalization, induction. Results. The article represents the analysis of the monitoring of fine particulate matters in the atmospheric air of Saint- Petersburg. Only 11 in automatic monitoring stations out of 22 there is carried out the control of fine particulate matters: in 7 - PM and PM, and in 4 - PM The average year concentrations were below MAC in all the stations. The maximum concentrations achieved 3 MAC, but the repeatance of cases of exceedence of concentrations more than MAC was very rare. On the average of the city concentrations of PM were decreased from 0,8 MAC in 2006 and 1,1 MAC in 2007 to 0,5 MAC in 2013-14. The executed analysis revealed main problems of the monitoring of fine particulate matters in the Russian Federation. They include the absence of the usage 1of the officially approved methods of controlling of PM and PM in the atmospheric air until March 1, 2016, lack of the modern equipment for measurement of fine particulate matters. Conclusions. Therefore, the state of the monitoring of fine particulate matters in the atmospheric air in the Russian Federation fails to be satisfactory. It is necessary to improve system of the monitoring, create modern Russian appliances, methods and means for measurement of fine particulate matters concentrations in the atmospheric air.
[Mh] Termos MeSH primário: Poluição do Ar
Monitoramento Ambiental
Material Particulado
Saúde Pública/métodos
Saúde da População Urbana
[Mh] Termos MeSH secundário: Poluentes Atmosféricos/análise
Poluentes Atmosféricos/química
Poluição do Ar/análise
Poluição do Ar/prevenção & controle
Monitoramento Ambiental/métodos
Monitoramento Ambiental/normas
Seres Humanos
Tamanho da Partícula
Material Particulado/análise
Material Particulado/química
Federação Russa/epidemiologia
Estações do Ano
Saúde da População Urbana/normas
Saúde da População Urbana/estatística & dados numéricos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Air Pollutants); 0 (Particulate Matter)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180213
[St] Status:MEDLINE


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[PMID]:29367481
[Au] Autor:Chanwattanakit J; Chavadej S
[Ad] Endereço:The Petroleum and Petrochemical College, Chulalongkorn University.
[Ti] Título:Laundry Detergency of Solid Non-Particulate Soil Using Microemulsion-Based Formulation.
[So] Source:J Oleo Sci;67(2):187-198, 2018 Feb 01.
[Is] ISSN:1347-3352
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:Laundry detergency of solid non-particulate soil on polyester and cotton was investigated using a microemulsion-based formulation, consisting of an anionic extended surfactant (C -4PO-SO Na) and sodium mono-and di-methyl naphthalene sulfonate (SMDNS) as the hydrophilic linker, to provide a Winsor Type III microemulsion with an ultralow interfacial tension (IFT). In this work, methyl palmitate (palmitic acid methyl ester) having a melting point around 30°C, was used as a model solid non-particulate (waxy) soil. A total surfactant concentration of 0.35 wt% of the selected formulation (4:0.65 weight ratio of C -4PO-SO Na:SMDNS) with 5.3 wt% NaCl was able to form a middle phase microemulsion at a high temperature (40°C),which provided the highest oil removal level with the lowest oil redeposition and the lowest IFT, and was much higher than that with a commercial detergent or de-ionized water. Most of the detached oil, whether in liquid or solid state, was in an unsolubilized form. Hence, the dispersion stability of the detached oil droplets or solidified oil particles that resulted from the surfactant adsorption played an important role in the oil redeposition. For an oily detergency, the lower the system IFT, the higher the oil removal whereas for a waxy (non-particulate) soil detergency, the lower the contact angle, the higher the solidified oil removal. For a liquefied oil, the detergency mechanism was roll up and emulsification with dispersion stability, while that for the waxy soil (solid oil) was the detachment by wettability with dispersion stability.
[Mh] Termos MeSH primário: Detergentes/química
Lavanderia
Palmitatos
[Mh] Termos MeSH secundário: Fibra de Algodão
Emulsões
Interações Hidrofóbicas e Hidrofílicas
Material Particulado
Poliésteres
Tensão Superficial
Tensoativos
Temperatura Ambiente
Têxteis
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Detergents); 0 (Emulsions); 0 (Palmitates); 0 (Particulate Matter); 0 (Polyesters); 0 (Surface-Active Agents); DPY8VCM98I (methyl palmitate)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180126
[St] Status:MEDLINE
[do] DOI:10.5650/jos.ess17135


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[PMID]:28987401
[Au] Autor:Li B; Guo L; Ku T; Chen M; Li G; Sang N
[Ad] Endereço:College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, PR China.
[Ti] Título:PM exposure stimulates COX-2-mediated excitatory synaptic transmission via ROS-NF-κB pathway.
[So] Source:Chemosphere;190:124-134, 2018 Jan.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Long-term exposure to fine particulate matter (PM ) has been reported to be closely associated with the neuroinflammation and synaptic dysfunction, but the mechanisms underlying the process remain unclear. Cyclooxygenase-2 (COX-2) is a key player in neuroinflammation, and has been also implicated in the glutamatergic excitotoxicity and synaptic plasticity. Thus, we hypothesized that COX-2 was involved in PM -promoted neuroinflammation and synaptic dysfunction. Our results revealed that PM elevated COX-2 expression in primary cultured hippocampal neurons and increased the amplitude of field excitatory postsynaptic potentials (fEPSPs) in hippocampal brain slices. And the administration of NS398 (a COX-2 inhibitor) prevented the increased fEPSPs. PM also induced intracellular reactive oxygen species (ROS) generation accompanied with glutathione (GSH) depletion and the loss of mitochondrial membrane potential (MMP), and the ROS inhibitor, N-acetyl-L-cystein (NAC) suppressed the COX-2 overexpression and the increased fEPSPs. Furthermore, the nuclear factor kappa B (NF-κB) was involved in ROS-induced COX-2 and fEPSP in response to PM exposure. These findings indicated that PM activated COX-2 expression and enhanced the synaptic transmission through ROS-NF-κB pathway, and provided possible biomarkers and specific interventions for PM -induced neurological damage.
[Mh] Termos MeSH primário: Ciclo-Oxigenase 2/fisiologia
NF-kappa B/metabolismo
Material Particulado/toxicidade
Espécies Reativas de Oxigênio/metabolismo
Transmissão Sináptica
[Mh] Termos MeSH secundário: Animais
Células Cultivadas
Ciclo-Oxigenase 2/metabolismo
Hipocampo/citologia
Inflamação/etiologia
Camundongos
Neurônios/patologia
Material Particulado/farmacologia
Transmissão Sináptica/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (NF-kappa B); 0 (Particulate Matter); 0 (Reactive Oxygen Species); EC 1.14.99.1 (Cyclooxygenase 2)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171009
[St] Status:MEDLINE


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[PMID]:28972921
[Au] Autor:Wang L; Chang J; Zheng X; Liu J; Yu M; Liu L; Yang Y; Zhang H
[Ad] Endereço:State Environmental Protection Key Laboratory of Risk Assessment and Control on Chemical Processes, East China University of Science and Technology, Shanghai 200237, China. Electronic address: wanglina@ecust.edu.cn.
[Ti] Título:Survey of ecological environmental conditions and influential factors for public parks in Shanghai.
[So] Source:Chemosphere;190:9-16, 2018 Jan.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Urban public parks provide a recreational environment for residents, hence more and more citizens would spend time in parks, especially elderly and kids. Therefore, it is important to evaluate the quality of ecological environment inside parks. Therefore, this study conducted the first measurements in ten public parks of Shanghai to investigate heavy metals in air, soil and leaf, growth parameters of leaf, and ambient PM and black carbon (BC) concentrations. Results showed Al and Mg appeared the highest in air. Cr, Cu, Mn and Zn were dominating in soil. Ca and Mg were much greater in leaves. It was concluded geographical locations were major reasons to explain the level of heavy metals, which mainly came from vehicle emissions. A small portion was attributing to chemical industries nearby. PM concentrations ranged from 0.01 mg/m to 0.10 mg/m , which met up level I and level II of air quality standard in China. BC concentrations ranged from 1000 ng/m to 6000 ng/m . Via comparing the correlation between photosynthesis and PM , as well as chlorophyll content and PM , it was concluded that chlorophyll can be regarded as an indicator for assessing air quality, but not photosynthesis. Unexpectedly, a positive correlation was observed between the stomatal conductance and PM as well as BC, which might be attributed to plants resisting the ambient stress. The results of this study can be used for assessments of air quality and health exposure inside parks, and also could provide urban policy maker with scientific evidences for urban park planning.
[Mh] Termos MeSH primário: Poluição do Ar
Monitoramento Ambiental/métodos
Metais Pesados/análise
Parques Recreativos
[Mh] Termos MeSH secundário: Poluentes Atmosféricos/análise
China
Clorofila/análise
Seres Humanos
Material Particulado/análise
Folhas de Planta/química
Poluentes do Solo/análise
Inquéritos e Questionários
Emissões de Veículos/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Air Pollutants); 0 (Metals, Heavy); 0 (Particulate Matter); 0 (Soil Pollutants); 0 (Vehicle Emissions); 1406-65-1 (Chlorophyll)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171004
[St] Status:MEDLINE


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[PMID]:29478647
[Au] Autor:Yan J; Chen L; Lin Q; Zhao S; Li L
[Ad] Endereço:Key Laboratory of Global Change and Marine-Atmospheric Chemistry, Third Institute of Oceanography, SOA, Xiamen 361005, China. Electronic address: jpyan@tio.org.cn.
[Ti] Título:Pollutants identification of ambient aerosols by two types of aerosol mass spectrometers over southeast coastal area, China.
[So] Source:J Environ Sci (China);64:252-263, 2018 Feb.
[Is] ISSN:1001-0742
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Two different aerosol mass spectrometers, Aerodyne Aerosol Mass Spectrometer (AMS) and Single Particle Aerosol Mass Spectrometer (SPAMS) were deployed to identify the aerosol pollutants over Xiamen, representing the coastal urban area. Five obvious processes were classified during the whole observation period. Organics and sulfate were the dominant components in ambient aerosols over Xiamen. Most of the particles were in the size range of 0.2-1.0µm, accounting for over 97% of the total particles measured by both instruments. Organics, as well as sulfate, measured by AMS were in good correlation with measured by SPAMS. However, high concentration of NH was obtained by AMS, while extremely low value of NH was detected by SPAMS. Contrarily, high particle number counts of NO and Cl were given by SPAMS while low concentrations of NO and Cl were measured by AMS. The variations of POA and SOA obtained from SPAMS during event 1 and event 2 were in accordance with the analysis of HOA and OOA given by AMS, suggesting that both of AMS and SPAMS can well identify the organic clusters of aerosol particles. Overestimate or underestimate of the aerosol sources and acidity would be present in some circumstances when the measurement results were used to analyze the aerosol properties, because of the detection loss of some species for both instruments.
[Mh] Termos MeSH primário: Aerossóis/análise
Poluentes Atmosféricos/análise
Monitoramento Ambiental/instrumentação
Material Particulado/análise
[Mh] Termos MeSH secundário: China
Tamanho da Partícula
Sulfatos/análise
Óxidos de Enxofre/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Aerosols); 0 (Air Pollutants); 0 (Particulate Matter); 0 (Sulfates); 0 (Sulfur Oxides)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180301
[Lr] Data última revisão:
180301
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180227
[St] Status:MEDLINE


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[PMID]:29478645
[Au] Autor:Rogula-Kozlowska W; Kozielska B; Majewski G; Rogula-Kopiec P; Mucha W; Kociszewska K
[Ad] Endereço:Institute of Environmental Engineering, Polish Academy of Sciences, 34 M. Sklodowska-Curie St., 41-819 Zabrze, Poland; The Main School of Fire Service, Faculty of Fire Safety Engineering, 52/54 Slowackiego St., 01-629 Warsaw, Poland. Electronic address: wioletta.rogula-kozlowska@ipis.zabrze.pl.
[Ti] Título:Submicron particle-bound polycyclic aromatic hydrocarbons in the Polish teaching rooms: Concentrations, origin and health hazard.
[So] Source:J Environ Sci (China);64:235-244, 2018 Feb.
[Is] ISSN:1001-0742
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The goal of the work was to investigate the concentrations of the 16 US EPA priority polycyclic aromatic hydrocarbons (PAH) bound to submicrometer particles (particulate matter, PM ) suspended in the air of university teaching rooms and in the atmospheric air outside. Two teaching rooms were selected in two Polish cities, Gliwice, southern Poland, and Warsaw, central Poland, differing with regard to the ambient concentrations and major sources of PM and PAH. The variabilities of indoor and outdoor 24-hr concentrations of PM -bound PAH, the ratio (I/O) of the indoor to outdoor 24-hr concentrations of PM -bound PAH, probable sources of PAH and the level of the hazard from the mixture of the 16 PAH (ΣPAH) to humans at both sites were analyzed. In both Warsaw and Gliwice, the mean concentrations of PM -bound ΣPAH were slightly higher in the atmospheric air than in the rooms. The indoor and outdoor concentrations of individual PAH in Gliwice were correlated, in Warsaw - they were not. Most probably, the lack of the correlations in Warsaw was due to the existence of an unidentified indoor source of gaseous PAH enriching PM in phenanthrene, fluorene, and pyrene. Although the ambient concentrations of PM -bound PAH were low compared to the ones observed earlier at both sites, they were much higher than in other urbanized European areas. However, because of low mass share of heavy PAH in ΣPAH, the various indicators of the health hazard from the 16 PAH mixture were low compared to other regions.
[Mh] Termos MeSH primário: Poluentes Atmosféricos/análise
Poluição do Ar em Ambientes Fechados/análise
Exposição Ambiental/estatística & dados numéricos
Hidrocarbonetos Aromáticos Policíclicos/análise
Instituições Acadêmicas/estatística & dados numéricos
[Mh] Termos MeSH secundário: Poluição do Ar em Ambientes Fechados/estatística & dados numéricos
Fluorenos/análise
Seres Humanos
Material Particulado/análise
Fenantrenos/análise
Polônia
Pirenos/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Air Pollutants); 0 (Fluorenes); 0 (Particulate Matter); 0 (Phenanthrenes); 0 (Polycyclic Aromatic Hydrocarbons); 0 (Pyrenes); 3Q2UY0968A (fluorene); 448J8E5BST (phenanthrene); 9E0T7WFW93 (pyrene)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180301
[Lr] Data última revisão:
180301
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180227
[St] Status:MEDLINE


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[PMID]:29028600
[Au] Autor:H Valido I; Padoan E; Moreno T; Querol X; Font O; Amato F
[Ad] Endereço:Institute of Environmental Assessment and Water Research (IDÆA), Spanish National Research Council (CSIC), Barcelona, Spain. Electronic address: iris.henriquez@uab.cat.
[Ti] Título:Physico-chemical characterization of playground sand dust, inhalable and bioaccessible fractions.
[So] Source:Chemosphere;190:454-462, 2018 Jan.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Dust is a mixture of natural and anthropogenic particles originated from multiple sources, which can represent an hazard for human health. Playgrounds are a site of particularly concern, due to sand dust ingestion by toddlers and inhalation. In this study, 37 sands used in public playgrounds in the city of Barcelona were physico-chemically characterized also in relation to routine maintenance activities such as disinfection and sand renewal. The analyzed sands show a felsic mineralogy dominated by Na-feldspar, quartz, and, to a lesser extent, K-feldspar, with minor amounts of clay minerals, carbonates and hematite. Particle fractions below 10, 2.5 and 1 µm represent, on average, 0.65%, 0.17% and 0.07% of bulk volume, respectively, although, due to the human grinding, these initial fractions increased every year by a 18%, 5% and 2% respectively. Disinfection of sands effectively reduced only the NH concentration, among inorganic species. The average metal content was anthropogenically enriched, with respect to the upper continental crust, only for Sb and As. Both elements show high spatial variation indicating local sources such as road traffic for Sb (contributing mostly to the total concentration), and industry for As (also contributing with highly bioaccessible Sb, Cu and Zn). A clear inverse relationship between total concentrations of some elements and their leachable (Sb) and bioaccessible (Sb and Cr) fractions is observed. The most bioaccessible elements were Ca > Ni > Cu > Sr > Cd > Pb, all above the 25% of the total concentration. Bioaccessibility was higher for the carbonate-bearing particles and for the anthropic emitted metals (>50% of Ba, Cu, K, Pb and Zn).
[Mh] Termos MeSH primário: Cidades
Poeira/análise
Monitoramento Ambiental/métodos
Parques Recreativos
Material Particulado/análise
[Mh] Termos MeSH secundário: Silicatos de Alumínio/análise
Exposição Ambiental/análise
Seres Humanos
Exposição por Inalação/análise
Metais/análise
Minerais/análise
Compostos de Potássio/análise
Dióxido de Silício/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Aluminum Silicates); 0 (Dust); 0 (Metals); 0 (Minerals); 0 (Particulate Matter); 0 (Potassium Compounds); 12168-80-8 (feldspar); 7631-86-9 (Silicon Dioxide)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180228
[Lr] Data última revisão:
180228
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171014
[St] Status:MEDLINE



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