Projects

CSEMP assessment of pyrene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean166.2669.26-30.1360.26
linear267.8574.25-29.9359.850.404 10.5251
smooth (df = 2)369.6382.13-29.8259.630.221 10.6382

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200520131.90851.6961-0.2124 0.3332-0.6370.5442
last 20 years200520131.90851.6961-0.2124 0.3332-0.6370.5442

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 5.5 24.01.4820.218 6.7860.0001
ERL 5.5665.04.8040.21821.996<0.0001

 


Related pages

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