Projects

CSEMP assessment of dibenzothiophene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean157.2260.22-25.6151.22
linear258.3964.79-25.2050.390.831 10.3619
smooth (df = 2)359.8472.34-24.9249.840.555 10.4564

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20052013-0.2237-0.4984-0.27471 0.29660-0.9260.3852
last 20 years20052013-0.2237-0.4984-0.27471 0.29660-0.9260.3852

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
ERL 0.61190.005.7450.19229.900<0.0001

 


Related pages

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