Long‐term exposure to background air pollution related to respiratory and allergic health in schoolchildren

Pénard-Morand, C.; Charpin, D.; Rahérison, Chantal; Kopferschmitt, Christine; Caillaud, D.; Lavaud, F.; Annesi‐Maesano, Isabella

doi:10.1111/j.1365-2222.2005.02336.x

Cited by 181 publications

(113 citation statements)

References 47 publications

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“…Concentration levels vary greatly depending on the time of day, season and place of measurement, especially for inhalable particulates (<PM 10 ) PM₁₀ is associated with increased mortality and morbidity in many cities worldwide and the risk is greatly pronounced among susceptible populations, including the elderly, children, and people with pre-existing health conditions [7]. Penard-Morand et al [8] carried out a large population-based study of children from 108 randomly selected schools in 6 French cities, elevated concentrations of PM 10 was significantly associated with an increased risk of suffering from allergic rhinitis, past year rhinoconjunctivitis and wheeze.…”

Section: Introductionmentioning

confidence: 99%

Inhalable Particulate Matter Burden in Selected Day-Care Centres in Ibadan, Nigeria

Ana¹,

Umar²

2013

IJEMA

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Abstract:The indoor air quality in day-care centres may influence the occurrence of infectious diseases and increase the risk of non-communicable diseases. The World Health Organisation (WHO) and other international agencies have considered particulate matter as an indicator of impact of air pollution on human health yet information on this from childcare centres is poorly documented in developing countries. This study therefore was designed to assess the particulate matter concentration (PM₁₀) in selected day-care centres (DCCs) in Ibadan, South western Nigeria. The study was descriptive cross sectional. PM 10 load was determined 3 days a week for 16 weeks spanning the late wet season and early dry season periods from 10 locations of the selected DCCs using a digital PM counter model Met one. The ratio of indoor/outdoor PM₁₀was computed. Results obtained throughout the monitoring period for all the locations were averaged and compared with WHO PM₁₀ guideline limit of 50µg/m³.Data collected were analysed using descriptive statistics and ANOVA at 5% level of significance. Mean indoor PM₁₀ readings for wet season (73.4 ± 54.4µg/m³) and dry season (296.3 ± 61.6µg/m³)significantly exceeded guideline limit (P<0.05).The indoor/outdoor PM₁₀ ratio was 1.38 ± 0.97 and being greater than 1 indicated a possible indoor source of pollution. High particulate matter concentration observed is indicative of the poor indoor air quality condition in the day care centres. Government policies on routine air quality monitoring and stringent enforcement of environmental sanitation in day care centres are advocated.

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Section: Introductionmentioning

confidence: 99%

Inhalable Particulate Matter Burden in Selected Day-Care Centres in Ibadan, Nigeria

Ana¹,

Umar²

2013

IJEMA

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“…Aunque algunos estudios reportan que no hay cambios en la prevalencia de síntomas respiratorios y asma con la disminución de concentraciones de PM 10 36 , otros estudios muestran un mayor efecto de este contaminante en pacientes asmáticos 37,38 .…”

Section: Discussionunclassified

Incidencia de síntomas respiratorios y su asociación con contaminación atmosférica en preescolares: un análisis multinivel

et al. 2010

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“…For adult male and female patients, the total weight of the chemical variables in the occurrence of asthma ER visits is higher in the pollen season of Ambrosia compared to the pollen-free season (Table 2). Some studies found that exposure to outdoor air pollutants may increase the risk of allergic airway diseases [11,[55][56][57][58]. This may be explained by the fact that air pollutants, especially burning of fossil fuels, can affect allergens.…”

Section: Discussionmentioning

confidence: 99%

“…Weather conditions can also affect both the biological and chemical air pollutants. There are evidences on the effect of air pollution upon allergens, increasing exposure to the latter, their concentration and/or biological allergenic activity [11][12][13]. Habitats and levels of pollen are changing in Europe, as a result of cultural factors, more international travel and climate change [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Risk Factors for Asthma Hospitalization among Adults and Elderly

Makra¹

2015

Arch Otolaryngol Rhinold

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Joint effect of biological (pollen) and chemical air pollutants on asthma emergency room (ER) visits was analyzed for Szeged region of Southern Hungary. Our database of a nine-year period (1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007) includes daily number of asthma emergency room (ER) visits, and daily mean concentrations of CO, PM 10 , NO, NO 2 , O 3 and SO 2 , furthermore two pollen variables (Ambrosia and total pollen excluding Ambrosia), as well. The analysis was performed for ER visits of asthma bronchiale using two age groups (adults and the elderly) of males and females for three seasons. Factor analysis was performed in order to clarify the relative importance of the pollutant variables affecting asthma ER visits. Asthma ER visits denote notably stronger associations with the pollutants in adult male than in adult female patients both for the pollen season of Ambrosia and the pollen-free season. Furthermore, adults are substantially more sensitive to severe asthma attack than the elderly for the season of total pollen excluding Ambrosia pollen. The joint effect of the chemical and pollen variables is the highest for the asthma ER cases in the pollen season of Ambrosia, basically due to the extra impact of the total pollen excluding Ambrosia pollen and partly due to Ambrosia pollen. A nonparametric regression technique was applied to discriminate between events of ER visit -no ER visit using pollen and chemical pollutants as explaining variables. Based on multiple correlations, the strongest relationships between ER visits and pollutants are observed during the pollen-free season. The elderly group with asthma bronchiale is characterized by weaker relationships between ER visits and pollutants compared to adults. Ratio of the number of correct decisions on the events of ER visit -no ER visit is lowest for the season of total pollen excluding Ambrosia pollen. Otherwise, similar conclusions hold as those received by multiple correlations. on aeroallergens. These include impacts on pollen amount, pollen allergen city, pollen season, plant and pollen distribution, and other plant attributes [18][19][20][21][22]. Hence, due to the continually increasing air pollution, respiratory diseases are of major concern worldwide. Air pollution of Hungary is one of the highest in Europe. Around 16,000 annual premature deaths attributable to exposure to ambient PM 10 concentrations are estimated in the country [23,24]. Furthermore, airborne pollen levels are also high. The Carpathian basin, involving Hungary (Figure 1) is considered the most polluted region with airborne ragweed (Ambrosia) pollen in Europe. Ambrosia in Hungary discharges the most pollen of all taxa; the ratio of its pollen release compared to the total pollen release in the late summer period is around 60-71% [25]. Highest counts on peak days in Szeged, Southern Hungary, are about one order of magnitude higher than those in other cities of Europe [26]. The sensitivity of patients to ragweed in Szeged is 83.7% [27]. About 30% of the Hungar...

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Long‐term exposure to background air pollution related to respiratory and allergic health in schoolchildren

Abstract: A moderate increase in long-term exposure to background ambient air pollution was associated with an increased prevalence of respiratory and atopic indicators in children.

Cited by 181 publications

References 47 publications

Inhalable Particulate Matter Burden in Selected Day-Care Centres in Ibadan, Nigeria

Inhalable Particulate Matter Burden in Selected Day-Care Centres in Ibadan, Nigeria

Incidencia de síntomas respiratorios y su asociación con contaminación atmosférica en preescolares: un análisis multinivel

Risk Factors for Asthma Hospitalization among Adults and Elderly

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