Projects

CSEMP assessment of CB153 in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean144.4447.44-19.2238.44
linear236.1442.54-14.0728.1410.303 10.0013
smooth (df = 2)336.9049.40-13.4526.90 1.237 10.2660

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20052013-1.8873-2.7315-0.8442 0.2188-3.8590.0062
last 20 years20052013-1.8873-2.7315-0.8442 0.2188-3.8590.0062

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 0.07 0.191.0710.146 7.318<0.0001
EAC 0.0740.006.4200.14643.878<0.0001

 


Related pages

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