Projects

CSEMP assessment of anthracene in sediment at middle (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1113.34115.91-53.67107.34
linear2111.06116.39-51.53103.064.279 10.0386
smooth (df = 2)3111.94121.94-50.97101.941.118 10.2904
smooth (df = 3)4113.83131.83-50.91101.830.110 10.7403

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200920183.15772.6233-0.5344 0.2556-2.0900.0700
last 20 years200920183.15772.6233-0.5344 0.2556-2.0900.0700

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC13.78 5.00-1.0139 0.1578-6.4260.9999
ERL13.7885.00 1.8193 0.157811.531<0.0001

 


Related pages

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