Projects

CSEMP assessment of lead in biota at Conwy Sands (Conwy Bay)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-8.49 0.517.25-14.49
linear2-6.9225.087.46-14.920.422 10.5162

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall201220186.0836.011-0.07136 0.10895-0.6550.5592
last 20 years201220186.0836.011-0.07136 0.10895-0.6550.5592

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 408.0 211.9-0.6551 0.0742-8.8280.9985
EC 408.01500.0 1.3020 0.074217.5450.0002

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in biota at Conwy Sands (Conwy Bay)


Raw data with assessment

Raw data with assessment of  lead in biota at Conwy Sands (Conwy Bay)


Assessment plot

Assessment plot for  lead in biota at Conwy Sands (Conwy Bay)


Metals data

Metals data for assessment of  lead in biota at Conwy Sands (Conwy Bay)


Metals assessment

Metals assessment of  lead in biota at Conwy Sands (Conwy Bay)


Related pages

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