Projects

CSEMP assessment of lead in biota at Liverpool Bay

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean141.7844.78-17.8935.78
linear242.2948.69-17.1434.291.490 10.2222
smooth (df = 2)341.7954.29-15.9031.792.493 10.1143

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200120144.7384.302-0.4360 0.3473-1.2550.2497
last 20 years200120144.7384.302-0.4360 0.3473-1.2550.2497

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 73.8 26.0-1.0437 0.2073-5.0340.9992
EC 73.81500.0 3.0114 0.207314.525<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in biota at Liverpool Bay


Raw data with assessment

Raw data with assessment of  lead in biota at Liverpool Bay


Assessment plot

Assessment plot for  lead in biota at Liverpool Bay


Metals data

Metals data for assessment of  lead in biota at Liverpool Bay


Metals assessment

Metals assessment of  lead in biota at Liverpool Bay


Related pages

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