Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean156.2058.20-25.1050.20
linear257.0161.01-24.5149.011.194 10.2745
smooth (df = 2)357.4364.58-23.7247.431.575 10.2094
smooth (df = 3)457.8169.81-22.9145.811.621 10.2029

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920187.1516.756-0.3953 0.3524-1.1220.2881
last 20 years199920187.1516.756-0.3953 0.3524-1.1220.2881

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 858.9 211.9-1.3995 0.2180-6.4201.0000
EC 858.91500.0 0.5576 0.2180 2.5580.0142

 


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