Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean191.01 93.58-42.5085.01
linear291.67 97.00-41.8383.671.342 10.2467
smooth (df = 2)392.29102.29-41.1582.291.375 10.2410
smooth (df = 3)491.30109.30-39.6579.302.990 10.0838

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20062016-2.0707-2.6129-0.5422 0.4515-1.2010.2641
last 20 years20062016-2.0707-2.6129-0.5422 0.4515-1.2010.2641

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC0.07330.31001.44170.2280 6.3250.0001
ERL0.07331.20002.79520.228012.262<0.0001

 


Related pages

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