Projects

CSEMP assessment of chromium in sediment at middle (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean112.9315.50-3.466.93
linear213.1318.46-2.565.131.803 10.1793
smooth (df = 2)313.5723.57-1.783.571.559 10.2119
smooth (df = 3)414.8632.86-1.432.860.702 10.4021

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200620164.4464.235-0.21174 0.14475-1.4630.1817
last 20 years200620164.4464.235-0.21174 0.14475-1.4630.1817

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
ERL69.0481.000.159720.068972.3160.0246

 


Related pages

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