Projects

CSEMP assessment of phenanthrene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean164.8367.83-29.4258.83
linear266.2972.69-29.1458.290.545 10.4603
smooth (df = 2)368.2980.79-29.1458.290.000 10.9923

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200520132.07591.7942-0.2817 0.3783-0.7440.4808
last 20 years200520132.07591.7942-0.2817 0.3783-0.7440.4808

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 6.01 32.001.6720.241 6.9400.0001
ERL 6.01240.003.6860.24115.307<0.0001

 


Related pages

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