Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean172.5975.59-33.3066.59
linear274.5980.99-33.2966.590.004 10.9521
smooth (df = 2)376.3688.86-33.1866.360.225 10.6352

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200520131.45071.47660.02590.42960.0600.9536
last 20 years200520131.45071.47660.02590.42960.0600.9536

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 4.38 16.001.2960.272 4.7700.0010
ERL 4.38261.004.0880.27215.045<0.0001

 


Related pages

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