Projects

CSEMP assessment of CB153 in sediment at Forth Estuary

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1115.54117.04-54.77109.54
linear2114.75117.66-53.38106.752.788 10.0950
smooth (df = 2)3109.09114.09-49.55 99.097.657 10.0057
smooth (df = 3)4110.91118.91-49.45 98.910.185 10.6669
smooth (df = 4)5112.63124.88-49.32 98.630.275 10.5998

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20002018-1.2429-0.58730.65570.24412.6860.0198
last 20 years20002018-1.2429-0.58730.65570.24412.6860.0198

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 0.56 0.19-1.073 0.160-6.7241.0000
EAC 0.5640.00 4.276 0.16026.784<0.0001

 


Related pages

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