Projects

CSEMP assessment of CB153 in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean146.3449.94-20.1740.34
linear243.8951.89-17.9435.894.455 10.0348
smooth (df = 2)342.4959.16-16.2532.493.392 10.0655

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20052018-2.4445-1.69030.75420.32542.3180.0596
last 20 years20052018-2.4445-1.69030.75420.32542.3180.0596

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 0.18 0.190.0300.226 0.1310.4501
EAC 0.1840.005.3790.22623.796<0.0001

 


Related pages

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