Data associated with manuscript "Measurement of soluble aerosol trace elements: inter-laboratory comparison of eight leaching protocols" by Tang et al., submitted for publication in Atmospheric Measurement Techniques, July 2025

The dataset consists of three files:

element-homogeneity.xlsx  -  results from six aerosol samples that were each divided into eight subsamples. All subsamples were analysed for 14 trace elements after strong acid digestion, and the results used to assess the homogeneity of trace element distribution over the aerosol filter surface.

mass-blanksubt-precis.xls  -  masses of soluble trace elements determined in 33 aerosol samples using a total of eight different leaching procedures by six different laboratory groups. Total trace element masses for the same samples are also included. The trace elements measured vary between laboratory groups. Masses given have been blank-corrected and precisions are listed in most cases.

mass-method-comparison-stats-v2.xls  -  summaries of the statistical tests used to compare the results obtained by each of the combinations of leaching method pairs produced from the study. Results are shown for all of the 26 intercomparison samples and for two of the aerosol source-based subsets of these samples. Note, this file is updated from the original submission, with revised correlation analysis.