AAAR 31st Annual Conference
October 8-12, 2012
Hyatt Regency Minneapolis
Minneapolis, Minnesota, USA
Abstract View
Non-Refractory Submicron Aerosol and Black Carbon Measurements in Background, Industrial and Traffic Sites in Santiago, Chile
FELIPE REYES, Paula Reyes, Marcela Castillo, María A. Rubio, Ernesto Gramsch, Pedro Oyola, Universidad de Santiago de Chile
Abstract Number: 246 Working Group: Urban Aerosols
Abstract Santiago, Chile’s capital is one of most polluted megacity (5.5 million of people) of the world. Currently, PM2.5 annual concentration is over 2.2 times the Chilean standard.
In order to characterize the contribution from mobile and industrial emission sources in Santiago Metropolitan Region, a winter campaign will be implemented during 2012.
Continuous measurements of non-refractory (sulphate, nitrate, ammonium and organics aerosol) components and black carbon will be obtained using an Aerosol Chemical Speciation Monitor (ACSM, Aerodyne Research Inc.) and Absorption Coefficient Monitor System (SIMCA, Santiago University), respectively. In addition, PM2.5 measurements will be carried out with a Dust-track (TSI). Meteorological data will be obtained from the air quality network operated by the environmental authority.
The traffic site will be placed near at Santiago major avenue/Alameda, at street level. The industrial site will be located at Cerrillos, an area with chemical and metallurgical industries. A large residential area (72 000 inhabitants) is located close to this industrial region. Urban background measurements will be implemented at the Santiago University Campus (USACH), 25 m over the ground level.
Measurements will get to the Chilean environmental authorities the possibilities to implement a decontamination plan to reduce the concentration of PM2.5.