It got hazier than yesterday with cloud free in the afternoon. The hourly PM 2.5 concentrations in the range of 13.3 to 32.4 ug/m3 were recorded at the Oldtown site during ELF’s operation. The aerosol optical depth was increased to ~0.65 from the AERONET site, MD Science Center.
Posted by li at September 6, 2007 10:59 PM