Assessment of atmospheric metal pollution in the urban area of Mexico City, using Ficus benjamina as biomonitor.
作者： Janin Guzmán-Morales , Ofelia Morton-Bermea , Elizabeth Hernández-Álvarez , María Teresa Rodríguez-Salazar , María Elena García-Arreola
DOI: 10.1007/S00128-011-0252-9
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摘要: Concentrations of vanadium, chromium, cobalt, nickel, copper, zinc, antimony, and lead were measured in Ficus benjamina leaves from the Mexico City urban area order to assess their enrichment against background values. The instrumental analysis was performed using inductively coupled plasma mass spectrometry analytical method tested two certified reference materials National Institute Standards Technology (1547 Peach Leaves 1573a Tomato Leaves). Enrichment factors calculated, i.e., total concentration ratio, for each metal. Low enrichments copper (≈2), mild chromium zinc (4.4, 4.5 respectively) found entire area; oppositely, high assessed antimony (28.6) (17.2). However, results indicate that metal concentrations strongly depend on specific sub-area. Increments metals attributed natural, vehicular, industrial sources.
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