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Asthmatic symptoms among pupils in relation to winter indoor and outdoor air pollution in schools in Taiyuan, China / Zhuohui Zhao (2008)
Titre : Asthmatic symptoms among pupils in relation to winter indoor and outdoor air pollution in schools in Taiyuan, China Type de document : texte imprimé Auteurs : Zhuohui Zhao, Auteur ; Zheng Zhang, Auteur ; Zhuanhua Wang, Auteur ; Martin Ferm, Auteur ; Yanling Liang, Auteur ; Dan Norbäck, Auteur Editeur : National Institute of Environmental Health Sciences Année de publication : 2008 Collection : Environmental health perspectives, ISSN 0091-6765 num. 116:1 Importance : p.90-97 Présentation : ill., tab., graph. Langues : Français (fre) Catégories : [DIVERS] personne:famille:enfant
[PROMOSAN] allergie:cause d'allergie:facteur aggravant:pollution
[PROMOSAN] allergie:manifestation de l'allergie
[PROMOSAN] allergie:type d'allergie:allergie environnementale
Index. décimale : AA 1.6. Asthme chez l'enfant Résumé : BACKGROUND:
There are few studies on associations between children's respiratory heath and air pollution in schools in China. The industrial development and increased traffic may affect the indoor exposure to air pollutants in school environment. Moreover, there is a need to study respiratory effects of environmental tobacco smoke (ETS) and emissions from new building materials in homes in China.
We studied the associations between pupils' asthmatic symptoms and indoor and outdoor air pollution in schools, as well as selected home exposures, in a coal-burning city in north China.
A questionnaire survey was administered to pupils (11-15 years of age) in 10 schools in urban Taiyuan, collecting data on respiratory health and selected home environmental factors. Indoor and outdoor school air pollutants and climate factors were measured in winter.
A total of 1,993 pupils (90.2%) participated; 1.8% had cumulative asthma, 8.4% wheezing, 29.8% had daytime attacks of breathlessness. The indoor average concentrations of sulfur dioxide, nitrogen dioxide, ozone, and formaldehyde by class were 264.8, 39.4, 10.1, and 2.3 microg/m3, respectively. Outdoor levels were two to three times higher. Controlling for possible confounders, either wheeze or daytime or nocturnal attacks of breathlessness were positively associated with SO2, NO2, or formaldehyde. In addition, ETS and new furniture at home were risk factors for wheeze, daytime breathlessness, and respiratory infections.
Indoor chemical air pollutants of mainly outdoor origin could be risk factors for pupils' respiratory symptoms at school, and home exposure to ETS and chemical emissions from new furniture could affect pupils' respiratory health.
En ligne : https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2199281/ Format de la ressource électronique : HTML, PDF Permalink :
Aucun avis, veuillez vous identifier pour ajouter le vôtre !Trends in the exposure of nonsmokers in the U.S. population to secondhand smoke / James L. Pirkle (2006)
Titre : Trends in the exposure of nonsmokers in the U.S. population to secondhand smoke : 1988–2002 Type de document : texte imprimé Auteurs : James L. Pirkle, Auteur ; John T. Bernert, Auteur ; Samuel P. Caudill, Auteur ; Connie S. Sosnoff, Auteur Editeur : National Institute of Environmental Health Sciences Année de publication : 2006 Collection : Environmental health perspectives, ISSN 0091-6765 num. 114:6 Importance : p. 853-858 Présentation : tab., graph. Langues : Anglais (eng) Catégories : [DIVERS] géographie:Amérique:Amérique du Nord:Etats-Unis
[TABAC] chimie du tabac:fumée
[TABAC] tabagisme:évaluation du tabagisme:marqueur
[TABAC] tabagisme:tabagisme passif:tabagisme environnemental
Index. décimale : TA 7.1 Généralités Résumé : The objective of this study was to describe the exposure of nonsmokers in the U.S. population to secondhand smoke (SHS) using serum cotinine concentrations measured over a period of 14 years, from October 1988 through December 2002. This study consists of a series of National Health and Nutrition Examination Surveys (NHANES) measuring serum cotinine as an index of SHS exposure of participants. Study participants were individuals representative of the U.S. civilian, noninstitutionalized population, ≥ 4 years of age. We analyzed serum cotinine and interview data from NHANES obtained during surveys conducted during four distinct time periods. Our results document a substantial decline of approximately 70% in serum cotinine concentrations in non-smokers during this period. This decrease was reflected in all groups within the population regardless of age, sex, or race/ethnicity. The large decrease that we observed in serum cotinine concentrations suggests a substantial reduction in the exposure of the U.S. population to SHS during the 1990s. The exposure of nonsmokers to SHS represents an important public health concern. Our findings suggest that recent public health efforts to reduce such exposures have had an important effect, although children and non-Hispanic black nonsmokers show relatively higher levels of serum cotinine. Permalink :
Code-barres Cote Support Localisation Section Disponibilité TA 005669 TA 7.1 PIR T Article/Périodique Bibliothèque principale Tabac Consultation sur place
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