Projects

CSEMP assessment of lead in biota at Cat Firth

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean17.0710.07-0.54 1.07
linear25.0611.46 1.47-2.944.010 10.0452
smooth (df = 2)36.5319.03 1.74-3.470.537 10.4638

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200420144.8905.4540.56350.20442.7570.0282
last 20 years200420144.8905.4540.56350.20442.7570.0282

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 233.6 211.9-0.0975 0.1153-0.8460.7872
EC 233.61500.0 1.8596 0.115316.131<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in biota at Cat Firth


Raw data with assessment

Raw data with assessment of  lead in biota at Cat Firth


Assessment plot

Assessment plot for  lead in biota at Cat Firth


Metals data

Metals data for assessment of  lead in biota at Cat Firth


Metals assessment

Metals assessment of  lead in biota at Cat Firth


Related pages

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