Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean149.6152.61-21.8043.61
linear251.3557.75-21.6743.350.258 10.6117
smooth (df = 2)352.9765.47-21.4842.970.382 10.5363

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200520131.67061.96080.29020.56720.5120.6247
last 20 years200520131.67061.96080.29020.56720.5120.6247

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 7.1 30.01.4400.343 4.2000.0020
ERL 7.1430.04.1030.34311.963<0.0001

 


Related pages

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