thumbnail

An assessment of the variability in performance of wet atmospheric deposition samplers

Water-Resources Investigations Report 87-4125

By:
, ,

Links

Abstract

The variability in performance of two brands of wet/dry atmospheric deposition samplers were compared for 1 year at a sincle site. A total of nine samplers were used. Samples were collected weekly and analyzed for pH, specific conductance, common chemical constituents, and sample volume. Additionally, data on the duration of each sampler opening were recorded using a microdatalogger. These data disprove the common perception that samplers remain open throughout a precipitation event. The sensitivity of sampler sensors within the range tested did not have a defineable impact on sample collection. The nonnormal distribution within the data set necessitated application of the nonparametric Friedman Test to assess comparability of sample chemical composition and volume between and within sampler brands. Statistically significant differences existed for most comparisons, however the test did not permit quantification of their magnitudes. Differences in analyte concentrations between samplers were small. (USGS)

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
An assessment of the variability in performance of wet atmospheric deposition samplers
Series title:
Water-Resources Investigations Report
Series number:
87-4125
Edition:
-
Year Published:
1987
Language:
ENGLISH
Publisher:
The Academy,
Description:
vi, 152 p. :ill., map ;28 cm.