Projects

CSEMP assessment of CB180 in sediment at middle (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1 99.78101.78-46.8993.78
linear2100.32104.32-46.1692.321.459 10.2271
smooth (df = 2)3 99.44106.59-44.7289.442.877 10.0898
smooth (df = 3)4 98.55110.55-43.2786.552.898 10.0887

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20072018-0.8896-0.54770.34190.27351.2500.2396
last 20 years20072018-0.8896-0.54770.34190.27351.2500.2396

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 0.578 0.100-1.7549 0.1613-10.8791.0000
EAC 0.57812.000 3.0326 0.1613 18.800<0.0001

 


Related pages

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