Projects

CSEMP assessment of anthracene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean171.8074.80-32.9065.80
linear271.6178.01-31.8063.612.187 10.1392
smooth (df = 2)373.3685.86-31.6863.360.252 10.6158

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20052013 0.0618-0.4469-0.5087 0.3379-1.5050.1759
last 20 years20052013 0.0618-0.4469-0.5087 0.3379-1.5050.1759

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 0.64 5.002.0560.223 9.233<0.0001
ERL 0.6485.004.8900.22321.954<0.0001

 


Related pages

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