Projects

CSEMP assessment of anthracene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean168.3972.89-31.2062.39
linear268.6179.27-30.3060.611.786 10.1814
smooth (df = 2)370.1495.14-30.0760.140.467 10.4942

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20052013-0.2129-0.9678-0.7549 0.5075-1.4880.1970
last 20 years20052013-0.2129-0.9678-0.7549 0.5075-1.4880.1970

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 0.38 5.002.5770.333 7.7350.0003
ERL 0.3885.005.4100.33316.239<0.0001

 


Related pages

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