Projects

CSEMP assessment of cadmium in biota at Bontddu (Mawddach)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1 -7.16 1.84 6.58-13.16
linear2-13.9818.0210.99-21.988.812 10.0030

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall201120155.5714.887-0.6839 0.1390-4.9180.0161
last 20 years201120155.5714.887-0.6839 0.1390-4.9180.0161

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 132.5 156.50.16610.0863 1.9260.0749
EC 132.51000.02.02100.086323.425<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  cadmium in biota at Bontddu (Mawddach)


Raw data with assessment

Raw data with assessment of  cadmium in biota at Bontddu (Mawddach)


Assessment plot

Assessment plot for  cadmium in biota at Bontddu (Mawddach)


Metals data

Metals data for assessment of  cadmium in biota at Bontddu (Mawddach)


Metals assessment

Metals assessment of  cadmium in biota at Bontddu (Mawddach)


Related pages

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