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2. Lanthanoid geochemistry of urban atmospheric particulate matter

Author

W. Gibbons, Andrés Alastuey, Noemí Pérez, Salvador Blanco, María Cruz Minguillón, Xavier Querol, B. Cardenas, Teresa Moreno, Rosa M. Bernabé, Jorge Pey, Moreno, Teresa [0000-0003-3235-1027], Querol, Xavier [0000-0002-6549-9899], Alastuey, Andrés [0000-0002-5453-5495], Minguillón, María Cruz [0000-0002-5464-0391], Perez, Noemi [0000-0003-2420-6727], Moreno, Teresa, Querol, Xavier, Alastuey, Andrés, Minguillón, María Cruz, and Perez, Noemi

Subjects
Lanthanide, Air Pollutants, Air sampling, Atmosphere, Urban Health, Air pollution, Mineralogy, Cerium, General Chemistry, Particulates, Coarse particle, medicine.disease_cause, Lanthanoid Series Elements, Source contributions, Aerosol, Environmental chemistry, Air quality, medicine, Environmental Chemistry, Anthropogenic factor, Particulate matter, Mexico, Air quality index
Abstract

Relatively little is known about the lanthanoid element (La to Lu) chemistry of inhalable urban atmospheric particulate matter (PM). PM samples collected during an air sampling campaign in the Mexico City area contain lanthanoid concentrations of mostly 1-10 ng m-3, increasing with mass where resuspension of crustal PM is important (low PM2.5/PM 10), but not where fine emissions from traffic and industry dominate (high PM2.5/ PM10). Samples show anthropogenic enrichment of lighter over heavier lanthanoids, and Ce enrichment relative to La and Sm occurs in the city center (especially PM10) possibly due to PM from road vehicle catalytic converters. La is especially enriched, although many samples show low La/V values (

Published
2008

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