Projects

CSEMP assessment of arsenic in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean122.3026.80-8.1516.30
linear223.6234.29-7.8115.62 0.680 10.4096
smooth (df = 2)315.6140.61-2.80 5.6110.012 10.0016

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200620131.36311.1355-0.22760 0.25851-0.8800.4189
last 20 years200620131.36311.1355-0.22760 0.25851-0.8800.4189

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 3.11325.0002.08340.166612.505<0.0001

 


Related pages

  • Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
  • Assessment methodology for in sediment
  • Accessment criteria for in sediment