Applying Receptor Models To Analyze Urban/Suburban VOCs Air Quality in Martorell (Spain)

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• 作者：José ; M. Baldasano ; Rosa Delgado ; and Josep Calbó
• 刊名：Environmental Science & Technology
• 出版年：1998
• 出版时间：February 1, 1998
• 年：1998
• 卷：32
• 期：3
• 页码：405 - 412
• 全文大小：139K
• 年卷期：v.32,no.3(February 1, 1998)
• ISSN：1520-5851

文摘

Airborne concentrations of several VOCs were measuredin the city of Martorell (Spain) and analyzed by using areceptor modeling approach in order to assess thecontributionof several potential sources of VOCs. In addition,VOCconcentrations in Martorell are compared to VOC levels in16 other cities of the world. Special attentionthroughoutthe paper is focused on the comparison between resultsobtained with data from an urban environment and datafrom a suburban area. Compared to the other cities,VOCsair quality in Martorell do not stand out for beingneitheramong the worst nor among the best. The goal ofsettingrelationships between airborne concentrations and pollutant sources is approached by a principal componentanalysis coupled to multiple linear regression. Theseprocedures allow one to identify sources of VOCspollution.A subsequent multiple linear regression allows us toestimate emission profiles for significant sources. Themainsource of VOCs pollution in Martorell is road traffic,contributing 62% of total pollution. Other identifiedsourcesof VOCs are the manufacture of aromas and essences(17%), a chemical industry of chlorinated compounds, anda wastewater facility (together, 6%). These latterthreepoint sources are located by establishing relationshipsbetween wind directions and peakconcentrations.