April 2016
Intermediate to advanced
252 pages
8h 35m
English
Content preview from Environmental Health
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186 Environmental Health: Indoor Exposures, Assessments and Interventions
tics as covariates in GEE models. We also examined location differences using analyte
loadings, ng/m2 [21]. We calculated loadings by multiplying analyte concentrations
by the sieved fi ne mass and dividing by the area sampled.
To determine the correlation of analyte concentrations between the fi rst and second
collections, we computed Spearman rank-order correlations.
To examine temporal trends of chlorpyrifos and diazinon concentrations in farm-
worker homes after the residential phase-out, we used Wilcoxon Mann-Whitney tests
to compare dust concentrations in the 15 (n = 29 samples) Salinas farmworker house-
holds sampled in 2006 from our present study with dust concentrations ...
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