Projects

CSEMP assessment of benzo[g,h,i]perylene in sediment at middle (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean165.9768.54-29.9959.97
linear267.9673.30-29.9859.96 0.005 10.9411
smooth (df = 2)368.3878.38-29.1958.38 1.581 10.2086
smooth (df = 3)451.0169.01-19.5139.0119.373 1<0.0001

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200620174.9604.9930.03380.44600.0760.9415
last 20 years200620174.9604.9930.03380.44600.0760.9415

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC147.44 80.00-0.6114 0.2728-2.2410.9723

 


Related pages

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