Projects

CSEMP assessment of zinc in biota at Peterstone (Lower Severn)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean152.4655.46-23.2346.46
linear254.3860.78-23.1946.380.073 10.7868
smooth (df = 2)351.7364.23-20.8641.734.658 10.0309

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall2001201410.13010.2670.13630.50280.2710.7941
last 20 years2001201410.13010.2670.13630.50280.2710.7941

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC2875310269-1.0296 0.3117-3.3030.9935

 


Raw data with supporting information

Raw data with supporting information for assessment of  zinc in biota at Peterstone (Lower Severn)


Raw data with assessment

Raw data with assessment of  zinc in biota at Peterstone (Lower Severn)


Assessment plot

Assessment plot for  zinc in biota at Peterstone (Lower Severn)


Metals data

Metals data for assessment of  zinc in biota at Peterstone (Lower Severn)


Metals assessment

Metals assessment of  zinc in biota at Peterstone (Lower Severn)


Related pages

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