Projects

CSEMP assessment of lead in biota at Mostyn Bank (Dee)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean114.1716.42-4.098.17
linear212.4517.02-2.234.453.723 10.0537
smooth (df = 2)314.4522.78-2.224.450.005 10.9425
smooth (df = 3)415.8630.26-1.933.860.587 10.4434

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920157.2356.614-0.6213 0.2946-2.1090.0642
last 20 years199920157.2356.614-0.6213 0.2946-2.1090.0642

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 745.1 211.9-1.2575 0.1841-6.8311.0000
EC 745.11500.0 0.6997 0.1841 3.8010.0021

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in biota at Mostyn Bank (Dee)


Raw data with assessment

Raw data with assessment of  lead in biota at Mostyn Bank (Dee)


Assessment plot

Assessment plot for  lead in biota at Mostyn Bank (Dee)


Metals data

Metals data for assessment of  lead in biota at Mostyn Bank (Dee)


Metals assessment

Metals assessment of  lead in biota at Mostyn Bank (Dee)


Related pages

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