Projects

CSEMP assessment of CB153 in sediment at middle (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean166.6868.48-30.3460.68
linear262.0165.57-27.0154.016.674 10.0098
smooth (df = 2)356.1362.38-23.0746.137.878 10.0050
smooth (df = 3)457.9368.22-22.9645.930.203 10.6525

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20062018-0.8182-0.18500.63310.16993.7260.0039
last 20 years20062018-0.8182-0.18500.63310.16993.7260.0039

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 0.83 0.19-1.476 0.132-11.1641.0000
EAC 0.8340.00 3.874 0.132 29.307<0.0001

 


Related pages

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