BES a AIR SAMPLER TOTAL FALL-OUT COLLECTOR INCREMENTAL FALL-OUT COLLECTOR a RAINGAGE IONEXCHANGE COLUMN q ied, Mea & > Vieticn ntiiiae NanhaiAdilalbas S| 5 a Le aD aaan a ae 7 RAIN GAGE iene “so. - . x cn ; TRIGGERHEAD —-_ s - DIFFERENTIAL FALL-OUT COLLECTOR Wa ad oe ee GDATTERY fe 7 Fig. 3.8——A typical land station, 28