1. Source Apportionment of PAHs in Airborne Particulates (PM2.5) in Southern Chile
- Author
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Karla Villenas-Fernández, Claudio Bravo-Linares, Luis Ovando-Fuentealba, Millaray Hernández-Millán, Stephen M. Mudge, Jean Paul Pinaud-Mendoza, Sandra Orellana-Donoso, and Rodrigo Loyola-Sepulveda
- Subjects
geography ,geography.geographical_feature_category ,010504 meteorology & atmospheric sciences ,Polymers and Plastics ,Chemistry ,Organic Chemistry ,010501 environmental sciences ,Particulates ,01 natural sciences ,Human health ,Apportionment ,Environmental chemistry ,Combustion products ,Spring (hydrology) ,Materials Chemistry ,Gravimetric analysis ,Chemical composition ,0105 earth and related environmental sciences - Abstract
Airborne particulate matter (PM2.5) are known environmental cotaminants. Nevertheless, it is not only the size of particulate matter that influences human health, but also its chemical composition. The chemical composition of the PAH suite in PM2.5 may be indicative of the source materials, typically combustion products. In this study, particulate matter (PM2.5) was collected using portable air samplers during all of 2013 and 2014 at five locations of the Los Rios Region, Valdivia, Chile. The quantity of PM2.5 collected was measured using gravimetric methods. Solvent extracts were analyzed for associated PAHs by means of GC-MS techniques. The concentrations of PM2.5 for all locations ranged from 2.8 to 386 µg/m3 for the autumn/winter periods and from 1.1 to 315 µg/m3 for the spring/summer periods. The mean concentrations of PM2.5 ranged from 11.9 to 112 µg/m3 in summer for all sites. The concentrations of PAHs for all locations ranged from 2.8 to 115 ng/m3 for the autumn/winter periods and from 0....
- Published
- 2016