merror (version 3.0)

pm2.5: PM 2.5 Concentrations from SCAMP Collocated Samplers

Description

Five filter-based samplers for measuring PM 2.5 concentrations were collocated and provided 77 complete sets of concentrations. This data was collected by the Stuebenville Comprehensive Air Monitoring Program (SCAMP) to check the accuracy and precision of the instruments.

Usage

data(pm2.5)

Format

A data frame with 77 sets of PM 2.5 concentrations (micrograms per cubic meter) from the following 5 samplers:

ms.conc.1

- personal sampler 1 - filter MS

ws.conc.1

- personal sampler 1 - filter WS

ms.conc.2

- personal sampler 2 - filter MS

ws.conc.2

- personal sampler 2 - filter WS

frm

- Federal Reference Method sampler

Examples

data(pm2.5)
boxplot(pm2.5)
merror.pairs(pm2.5)

# estimates of accuracy and precision
#   for nonconstant bias model using 
#   original data values
ncb.od(pm2.5)