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Fig. 3 | Environmental Health

Fig. 3

From: Exploring associations between multipollutant day types and asthma morbidity: epidemiologic applications of self-organizing map ambient air quality classifications

Fig. 3

Seasonal frequencies, particulate matter, and meteorological summaries for the 9 multipollutant day types identified in Atlanta, GA, from January 1, 1999 to December 31, 2008. Panel a provides the seasonal frequency counts for each type. Panels b-g provide boxplots illustrating the distribution of particulate matter and meteorology under each category. Grey indicates our referent level; Light blue indicates insignificant day types; Red indicates day types significantly associated with asthma

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Environmental Health

ISSN: 1476-069X