Looking at the counts since the dust monitor software change (alog 8055), I noticed that some of these channels have started picking up 'noise'.

It appears on the .3 micron counts in the first attached plot for the following channels:

Ch 1: H0:PEM-CS_DUST_DR1_300NM_PCF
Ch 3: H0:PEM-CS_DUST_LAB2_300NM_PCF
Ch 5: H0:PEM-CS_DUST_LVEA4_300NM_PCF
Ch 8: H0:PEM-CS_DUST_LVEA16_300NM_PCF
Ch 9: H0:PEM-EX_DUST_VEA1_300NM_PCF

It appears on both the .3 micron and .5 micron counts in the other three attached plots.