Residential proximity fine particles related to allergic sensitisation and asthma in primary school children

Annesi‐Maesano, Isabella; Moreau, David; Caillaud, D.; Lavaud, F.; Moullec, Yvon Le; Taytard, A; Pauli, G.; Charpin, D.

doi:10.1016/j.rmed.2007.02.022

Cited by 147 publications

(108 citation statements)

References 37 publications

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“…This might be another reason for the higher prevalence of asthma in urban areas compared to rural areas. Traffic-related air pollution may possibly increase the risk of allergy development and may exacerbate symptoms in particular in susceptible subgroups [53][54][55][56]. Although traffic-related air pollution levels are usually higher in urban areas, it is not necessarily the case for outdoor industrial air pollution levels or indoor air pollution levels from polluting fuels used for cooking or heating.…”

Section: Discussionmentioning

confidence: 99%

Household Conditions, Eczema Symptoms and Rhinitis Symptoms: Relationship with Wheeze and Severe Wheeze in Children Living in the Polokwane Area, South Africa

Wichmann

Wolvaardt

Maritz

et al. 2008

Matern Child Health J

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Background This is the fifth study that applied the International Study of Asthma and Allergies in Childhood (ISAAC) methodology in the Southern African Development Community (SADC region). However, it is the first ISAAC study that focused on 6-to 7-year-old children living in South Africa and that also investigated the association between potential risk factors and asthma symptoms. Objective To assess the 12-month prevalence of wheeze and severe wheeze along with their potential risk factors. Setting Within a 60-km radius from the Polokwane city centre, Limpopo Province. Methods The survey was conducted during August 2004 and February 2005. Parents/guardians of 6-to 7-year-old children completed the questionnaires in English, Afrikaans or North-Sotho. However, the statistical analyses were restricted to the North-Sotho group (n = 2,437). Results The 12-month prevalence rates of wheeze and severe wheeze were 11.2% and 5.7%, respectively. The 12-month prevalence rates of eczema symptoms and rhinoconjunctivitis symptoms were 8.0% and 7.3%, respectively. Living in a rural area significantly decreased the likelihood of wheeze by 31%. Exposure to environmental tobacco smoke at home and the presence of eczema symptoms and rhinoconjunctivitis symptoms increased the likelihood of wheeze by 77%, 104% and 226%, respectively. Only the presence of rhinoconjunctivitis symptoms increased the likelihood of severe wheeze by 107%. Conclusion Wheeze appears to be an emerging public health problem in the Polokwane area. Hopefully, detailed analytical intervention studies will further explicate these results in the near future.

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Section: Discussionmentioning

confidence: 99%

Household Conditions, Eczema Symptoms and Rhinitis Symptoms: Relationship with Wheeze and Severe Wheeze in Children Living in the Polokwane Area, South Africa

Wichmann

Wolvaardt

Maritz

et al. 2008

Matern Child Health J

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“…Gold et al 1999;Lee et al 2002;John et al 2007;Annesi-Maesano et al 2007;Oravisjarvi et al 2008). These studies demonstrated that indoor PM levels are greatly affected by the presence of pupils and the intensity of their indoor activities, as well as outdoor PM levels.…”

Section: Background Aim and Scopementioning

confidence: 99%

Characterization of particle number concentrations and PM2.5 in a school: influence of outdoor air pollution on indoor air

Guo

Morawska

et al. 2010

Environ Sci Pollut Res

163

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“…Estudos têm reportado associações entre a proximidade de residências a rodovias e indústrias e desfechos respiratórios em crianças, incluindo sintomas como sibilância e exacerbação de asma [7][8][9] . Smargiassi et al 8 relataram episódios de elevação dos níveis de dióxido de enxofre (SO 2 ) liberados por uma refinaria no Canadá, associados com o aumento de episódios de asma em crianças residentes no entorno.…”

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Wheezing in children and adolescents living next to a petrochemical plant in Rio Grande do Norte, Brazil

et al. 2010

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Objective: To examine the association between wheezing in children and adolescents and living downwind of the dispersion plume of atmospheric pollutants emitted by the Guamaré Petrochemical Complex, in the state of Rio Grande do Norte, Brazil. Methods:Cross-sectional study of wheezing in children and adolescents (aged 0 to 14 years) living in the vicinity of the Guamaré petrochemical complex in 2006. The standardized International Study of Asthma and Allergies in Childhood questionnaire was used, with additional questions concerning tobacco use, income, living conditions, and educational achievement. Daily concentrations of PM 10 , PM 2.5 , black carbon, SO 2 , NO 2 , O 3 , benzene, toluene, and xylenes were measured at a fixed monitoring station. According to their position relative to wind direction, communities present in the area affected by plant emissions were categorized into one of two groups, exposed communities and reference communities.Results: Two hundred and nine children and adolescents took part in the study. Mean daily concentrations of the monitored pollutants were consistently below established acceptable upper limits. The prevalence of wheezing in the 12 months prior to study was 27.3%. After adjustment, statistically significant associations were found between wheezing and living in exposed communities (adjusted odds ratio [OR adj ] 2.01; 95% confidence interval [95%CI] 1.01-4.01), male gender (OR adj 2.50; 95%CI 1.21-5.18), and age 0 to 6 years (OR adj 5.00; 95%CI 2.41-10.39). Conclusion:Even with low levels of atmospheric pollutants, respiratory symptoms in children and adolescents were associated with living downwind of a petrochemical plant. Male preschoolers were the most vulnerable group. Resultados: Participaram do estudo 209 crianças e adolescentes. As concentrações médias diárias dos poluentes monitorados mantiveramse abaixo dos limites estabelecidos nos padrões de qualidade do ar. A prevalência de sibilos nos últimos 12 meses foi de 27,3%. Associações estatisticamente significantes com sibilos nos últimos 12 meses foram verificadas mesmo após ajustamentos para comunidades expostas [razão de chances (odds ratio, OR ajust ) = 2,01; intervalo de confiança de 95% (IC95%) 1,01-4,01], gênero masculino (OR ajust = 2,50; IC95% 1,21-5,18) e idade de 0 a 6 anos (OR ajust = 5,00; IC95% 2,41-10,39). J Pediatr (Rio J) Conclusão:Mesmo em baixas concentrações de poluentes atmosfé-ricos, a ocorrência de sintomas respiratórios em crianças e adolescentes nas comunidades no entorno de um PPQ esteve associada a residência na direção preferencial dos ventos, mostrando-se mais vulnerável o grupo de pré-escolares do gênero masculino.J Pediatr (Rio J). 2010;86(4):337-344

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Residential proximity fine particles related to allergic sensitisation and asthma in primary school children

Abstract: Findings support the hypothesis that changes in allergy prevalence observed in recent decades might be partly related to interactions between traffic-related air pollution and allergens. Further longitudinal investigations are needed to corroborate such results.

Cited by 147 publications

References 37 publications

Household Conditions, Eczema Symptoms and Rhinitis Symptoms: Relationship with Wheeze and Severe Wheeze in Children Living in the Polokwane Area, South Africa

Household Conditions, Eczema Symptoms and Rhinitis Symptoms: Relationship with Wheeze and Severe Wheeze in Children Living in the Polokwane Area, South Africa

Characterization of particle number concentrations and PM2.5 in a school: influence of outdoor air pollution on indoor air

Wheezing in children and adolescents living next to a petrochemical plant in Rio Grande do Norte, Brazil

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