Projects

CSEMP assessment of chrysene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean146.7649.76-20.3840.76
linear248.6355.03-20.3140.630.133 10.7158
smooth (df = 2)350.6163.11-20.3040.610.020 10.8874

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200520131.89471.7049-0.1898 0.5199-0.3650.7258
last 20 years200520131.89471.7049-0.1898 0.5199-0.3650.7258

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 5.5 20.01.2910.315 4.1020.0023
ERL 5.5384.04.2460.31513.492<0.0001

 


Related pages

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