Study of atmospheric particulate matter in Buenos Aires city

摘要: Abstract The data reported here constitute the results of first long-term monitoring campaign daily PM10 and PM2.5 concentration levels in Buenos Aires city. Twenty-four hour averages atmospheric concentrations were measured (not simultaneously) at a site near downtown Aires, since December 1998–September 1999. values correlate well with carbon monoxide (CO) during winter period, indicating that direct traffic emissions have an important contribution to PM2.5. are less correlated for case PM10, sources coarse fraction not only emissions, other sources, example re-suspended material. Scanning electron microscopy atomic force images particles on nucleopore filters shown. Information about ion metal content these is reported.