Projects

CSEMP assessment of mercury in biota at Bontddu (Mawddach)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-10.13-1.138.06-16.13
linear2 -8.2823.728.14-16.280.150 10.6986

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall201120152.91303.00810.095050.243020.3910.7218
last 20 years201120152.91303.00810.095050.243020.3910.7218

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 20.2 14.7-0.322 0.148-2.1700.9408
EC 20.2500.0 3.207 0.14821.5930.0001

 


Raw data with supporting information

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


Raw data with assessment

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


Assessment plot

Assessment plot for  mercury in biota at Bontddu (Mawddach)


Metals data

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


Metals assessment

Metals assessment of  mercury 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