Projects

CSEMP assessment of lead in biota at Bontddu (Mawddach)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-8.17 0.837.08-14.17
linear2-9.0722.938.54-17.072.905 10.0883

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall201120156.3846.6420.257900.129591.9900.1407
last 20 years201120156.3846.6420.257900.129591.9900.1407

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 766.8 211.9-1.2861 0.0783-16.4170.9998
EC 766.81500.0 0.6710 0.0783 8.5650.0017

 


Raw data with supporting information

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


Raw data with assessment

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


Assessment plot

Assessment plot for  lead in biota at Bontddu (Mawddach)


Metals data

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


Metals assessment

Metals assessment of  lead 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