CSEMP assessment of pyrene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
linear243.8550.25-17.9335.850.242 10.6224
smooth (df = 2)345.7158.21-17.8535.710.147 10.7013

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200520131.74381.5123-0.2315 0.4678-0.4950.6358
last 20 years200520131.74381.5123-0.2315 0.4678-0.4950.6358

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 4.5 24.01.6660.284 5.8640.0003
ERL 4.5665.04.9880.28417.557<0.0001


Related pages

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