Projects

CSEMP assessment of nickel in sediment at SE of Bressay (Shetland)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean151.0855.58-22.5445.08
linear252.9963.65-22.4944.990.090 10.7647
smooth (df = 2)354.8479.84-22.4244.840.142 10.7061

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200620162.98293.11740.13450.44060.3050.7725
last 20 years200620162.98293.11740.13450.44060.3050.7725

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC22.5936.000.46610.27751.6800.0769

 


Related pages

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