Projects

CSEMP assessment of lead in biota at St Bees Head

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean149.0553.55-21.5343.05
linear241.3352.00-16.6733.339.718 10.0018
smooth (df = 2)342.5667.56-16.2832.560.776 10.3784

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200320124.9805.8410.86100.20414.2180.0083
last 20 years200320124.9805.8410.86100.20414.2180.0083

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 344 26-2.5826 0.1359-19.0021.0000
EC 3441500 1.4726 0.1359 10.835<0.0001

 


Related pages

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