Projects

CSEMP assessment of CB153 in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean163.0167.51-28.5057.01
linear264.0874.74-28.0456.080.931 10.3347
smooth (df = 2)364.9989.99-27.5054.991.086 10.2974

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20052013-2.0365-2.4572-0.4208 0.4377-0.9610.3806
last 20 years20052013-2.0365-2.4572-0.4208 0.4377-0.9610.3806

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 0.09 0.190.7960.265 3.0000.0150
EAC 0.0940.006.1460.26523.151<0.0001

 


Related pages

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