CSEMP assessment of c1 dibenzothiophene in sediment at SE of Bressay (Shetland)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean174.48 78.98-34.2468.48
linear275.78 86.45-33.8967.780.693 10.4052
smooth (df = 2)376.82101.82-33.4166.820.968 10.3251

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20062016 0.27123-0.22856-0.4998 0.5962-0.8380.4401
last 20 years20062016 0.27123-0.22856-0.4998 0.5962-0.8380.4401

Status assessment

No assessment criteria


Related pages

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