Symptom reporting during recent publicized and unpublicized air pollution episodes.

Cohen, A A; Nelson, Cathleen; Bromberg, Steven M.; Pravda, M; Ferrand, Edward F.; Leone, Giovanna

doi:10.2105/ajph.64.5.442

Cited by 17 publications

(6 citation statements)

References 16 publications

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“…For soot the levels are even lower (mean = 10 p.g/m 3 ). There are no major differences in ambient air concentrations between the areas, although the levels of S02, N02, and soot tend to be somewhat higher in the A and B area.…”

Section: Resultsmentioning

confidence: 90%

Acute Respiratory Symptoms in Patients with Chronic Obstructive Pulmonary Disease and in Other Subjects Living near a Coal-Fired Plant

Pershagen¹,

Hrubec²,

Lorich³

et al. 1984

Archives of Environmental Health: An International Journal

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Daily symptom rates in patients with chronic obstructive pulmonary disease and in other subjects with presumed high sensitivity to air pollution who lived near a coal-fired plant were compared with 24-hr ambient air concentrations of nitrogen dioxide, sulfur dioxide, soot, and suspended particles as well as with emissions from the plant. The mean concentrations of each of the pollutants during the 4-month study period were below 30 micrograms/m3, and no single 24-hr concentration exceeded 100 micrograms/m3. There were no consistent associations between plant emissions and pollutant levels or between these two variables and daily symptom rates. The results indicate that the coal-fired plant was not of major importance for the occurrence of acute respiratory symptoms in the surrounding population.

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Section: Resultsmentioning

confidence: 90%

Acute Respiratory Symptoms in Patients with Chronic Obstructive Pulmonary Disease and in Other Subjects Living near a Coal-Fired Plant

Pershagen¹,

Hrubec²,

Lorich³

et al. 1984

Archives of Environmental Health: An International Journal

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“…Therefore, it is possible that our results biased by the publicity on air pollution. However, COHEN et al [26] did not find reported symptom differences between a well-publicized and an unpublicized air pollution episode in New York, with similar concentration levels in both episodes. In addition, the relative risks that we report on symptoms and medication use for our population are similar to those observed after ambient ozone exposure in subjects with obstructive airways disease [5].…”

Section: Discussionmentioning

confidence: 90%

Asthma severity and susceptibility to air pollution

Hiltermann¹,

Stolk²,

Zee³

et al. 1998

Eur Respir J

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Exacerbations of asthma have been associated with exposure to ozone or particles with a 50% cut-off aerodynamic diameter of 10 microm (PM10). We postulated in this study that the association of summertime air pollution (i.e. ozone and PM10) with acute respiratory symptoms, medication use and peak expiratory flow differs among patients grouped according to asthma severity. During the summer of 1995, effects of ambient air pollution on these parameters were studied in a panel of 60 nonsmoking patients with intermittent to severe persistent asthma. These patients were recruited from our Pulmonary Out-patient Clinic. Subgroup analysis was performed on the degree of hyperresponsiveness and lung steroid use before the start of the study, as indictors for the severity of asthma. Associations of the parameters studied with ozone, PM10, nitrogen dioxide (NO2), sulphur dioxide (SO2) and black smoke were evaluated using time series analysis. Several episodes with increased summertime air pollution occurred during the 96 day study period. Eight hour average ozone concentrations exceeded the World Health Organization (WHO) Air Quality Guidelines (120 microg x m(-3)) on 16 occasions. Daily mean levels of PM10 were moderately elevated (range 16-98 microg x m(-3)). Levels of the other measured pollutants were low. There was a consistent, positive association of the prevalence of shortness of breath (maximal relative risk (RRmax) 1.18) with ozone, PM10, black smoke and NO2. In addition, bronchodilator use was associated with both ozone and PM10 levels (RRmax 1.16). Stratification by airway hyperresponsiveness and steroid use did not affect the magnitude of the observed associations. No associations with peak expiratory flow measurements were found. We conclude that the severity of asthma is not an indicator for the sensitivity to air pollution.

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“…Apparently this did not cause significant bias toward an association between ozone and symptoms. Cohen and colleagues also did not find reported symptom differences between a well-publicized and an unpublicized air pollution episode in New York, with similar concentration levels in both episodes (42).…”

Section: Discussionmentioning

confidence: 92%

Effect of photochemical air pollution on acute respiratory symptoms in children.

Hoek¹,

Brunekreef²

1995

Am J Respir Crit Care Med

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In the spring and summer of 1989, an epidemiologic study of the acute effects of photochemical air pollution on the respiratory health of 300 children 7 to 11 yr old was conducted. The children studied were a general population sample of the children living in two rural towns in the Netherlands. For these children, small pulmonary function decrements associated with ambient ozone concentrations were reported previously. In this paper, the association between photochemical ambient air pollution and acute respiratory symptoms is evaluated. Occurrence of acute respiratory symptoms was registered by the parents of the children in a diary on a daily basis. The association of symptom prevalence and incidence with air pollution was evaluated using a logistic regression model that took auto-correlation of the residuals into account. Several photochemical episodes occurred in the study period of 102 d. Hourly maximum ozone concentrations ranged from 14 to 114 ppb. Daily average PM10 concentrations ranged from 11 to 136 micrograms/m3. Levels of acid aerosol were low. No associations of daily symptom prevalence or incidence with same-day or previous day concentration levels of ozone, PM10, fine particle sulfate, or nitrate were observed.

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Symptom reporting during recent publicized and unpublicized air pollution episodes.

Cited by 17 publications

References 16 publications

Acute Respiratory Symptoms in Patients with Chronic Obstructive Pulmonary Disease and in Other Subjects Living near a Coal-Fired Plant

Acute Respiratory Symptoms in Patients with Chronic Obstructive Pulmonary Disease and in Other Subjects Living near a Coal-Fired Plant

Asthma severity and susceptibility to air pollution

Effect of photochemical air pollution on acute respiratory symptoms in children.

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