Seventeen surface wipe samples
were collected from the SC laboratory and the agents' office.
For surface wipe samples
, in terms of individual asbestos structure counts reported by the laboratory, 585 structures were chrysotile (Figure 3).
The objective of our study was to determine the relationship between direct X-ray fluorescence (XRF) lead concentrations and potentially available lead as indicated by surface wipe samples
. We hypothesized that lead migration from inner paint layers may exist in pre-1950 homes.
Results from wipe samples
need to be considered carefully, because the method of collection, such as a handwipe versus a solvent wash, may affect the amount of pesticide removed from a hand.
The last deviation was that arsenic-spiked wipe samples
were not submitted blindly to the lab but were spiked in the laboratory.
At the baseline visit, the field staff first obtained consent and then collected dust wipe samples
from several windowsills and floor surfaces.
The LWW sampler was used to collect wipe samples
from smooth surfaces in both areas A and B.
All digested wipe samples
were analyzed for lead according to Standard Method 3113B (Clesceri, Greenberg, & Eaton, 1998) for electrothermal atomic absorption spectrometry (EAAS).
from three types of surfaces (floor, toys, and children's hands) in be tested for pesticides were collected in each home using procedures described elsewhere (Quandt et al.
Nine dust wipe samples
were submitted to a private laboratory for analysis by NIOSH Method 7082; one dust wipe was taken from each of the eight sets of miniblinds, then one set of miniblinds was washed with a phosphate soap and another dust wipe was taken so that the effects of cleaning the blinds could be observed.
were taken from floor surfaces, toys, and children's hands.
In addition, the one wipe sample
taken from the outside wall of a home facing the steel plant site was found to contain 0.07 lag Pb/[cm.sup.2] and 0.008 [micro]g As/[cm.sup.2].