TY - GEN
T1 - Metals in airborne particulate matter at two sampling stations in Mexico City
AU - Molina, Ana M.
AU - Espinosa, Matilde E.
AU - Gutierrez, Eugenia M.
AU - Tovar, Luis R.
PY - 2008
Y1 - 2008
N2 - The metal concentrations of acid and water soluble fractions of PM2.5 and PM10 at two sampling stations, i.e., Merced and Xalostoc, from the Automatic Monitoring Network in the Mexico city metropolitan Area were studied. Northeast Xalostoc represented a large and complex industrial area with high traffic and poor vegetation, while Merced is an area with high vehicular emissions and high commercial activity. Many of the metals were mainly derived from combustion residues from fuels, tire abrasion, engine, and transmission oils, gasoline, diesel, road pavements, brake lining, and protection barriers. In reference to gaseous pollutants levels, the highest average SO2 concentrations were observed in Xalostoc and O3 in the Merced station. Metals were found in both PM10 and PM2.5, but they occurred extensively in the finer fraction, which was characteristic of anthropogenic pollution sources. pH was a major controlling factor in PM metal solubility. Variability in the quantities of PM soluble metals in acid and water fractions was indicative of the environmentally mobility of the elements. This is an abstract of a paper presented at the 101st AWMA Annual Conference and Exhibition (Portland, OR 6/24-27/2008).
AB - The metal concentrations of acid and water soluble fractions of PM2.5 and PM10 at two sampling stations, i.e., Merced and Xalostoc, from the Automatic Monitoring Network in the Mexico city metropolitan Area were studied. Northeast Xalostoc represented a large and complex industrial area with high traffic and poor vegetation, while Merced is an area with high vehicular emissions and high commercial activity. Many of the metals were mainly derived from combustion residues from fuels, tire abrasion, engine, and transmission oils, gasoline, diesel, road pavements, brake lining, and protection barriers. In reference to gaseous pollutants levels, the highest average SO2 concentrations were observed in Xalostoc and O3 in the Merced station. Metals were found in both PM10 and PM2.5, but they occurred extensively in the finer fraction, which was characteristic of anthropogenic pollution sources. pH was a major controlling factor in PM metal solubility. Variability in the quantities of PM soluble metals in acid and water fractions was indicative of the environmentally mobility of the elements. This is an abstract of a paper presented at the 101st AWMA Annual Conference and Exhibition (Portland, OR 6/24-27/2008).
KW - Airborne participate matter
KW - Metals
KW - Mexico City
KW - PM
UR - http://www.scopus.com/inward/record.url?scp=70449581108&partnerID=8YFLogxK
M3 - Contribución a la conferencia
AN - SCOPUS:70449581108
SN - 9781605607887
T3 - Proceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA
SP - 4125
EP - 4134
BT - 101st Air and Waste Management Association Annual Conference and Exhibition 2008
T2 - 101st Air and Waste Management Association Annual Conference and Exhibition 2008
Y2 - 24 June 2008 through 27 June 2008
ER -
