Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean144.7847.78-19.3938.78
linear240.7347.13-16.3732.736.049 10.0139
smooth (df = 2)339.1751.67-14.5829.173.568 10.0589

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200120147.6756.897-0.7783 0.2771-2.8090.0262
last 20 years200120147.6756.897-0.7783 0.2771-2.8090.0262

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 989.0 156.5-1.8437 0.1720-10.7171.0000
EC 989.01000.0 0.0111 0.1720 0.0640.4752

 


Raw data with supporting information

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


Raw data with assessment

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


Assessment plot

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


Metals data

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


Metals assessment

Metals assessment of  cadmium 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