Projects

CSEMP assessment of benzo[a]pyrene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean137.1240.12-15.5631.12
linear238.1644.56-15.0830.160.956 10.3282
smooth (df = 2)340.0952.59-15.0430.090.074 10.7849

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200520132.30841.9154-0.393 0.393-1.0000.3506
last 20 years200520132.30841.9154-0.393 0.393-1.0000.3506

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 6.8 30.01.4860.240 6.1930.0002
ERL 6.8430.04.1480.24017.291<0.0001

 


Related pages

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