September 7, 2007
Still hazy
Today was as hazy as yesterday with scattered clouds in the afternoon. The hourly PM 2.5 concentrations in the range of 8 to 26.4 ug/m3 were recorded at the Oldtown site during ELF’s operation, compared with yesterday PM2.5 concentration decreased in the morning time but increased in the afternoon time. The aerosol optical depth was ~0.62 from the AERONET site, MD Science Center.
