Projects

CSEMP assessment of mercury in biota at Crosby (Mersey Channel)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-8.08-6.28 7.04-14.08
linear2-9.63-6.07 8.81-17.633.549 10.0596
smooth (df = 2)3-8.52-2.27 9.26-18.520.889 10.3457
smooth (df = 3)4-8.39 1.9010.19-20.391.870 10.1715

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200020184.0453.772-0.27260 0.13684-1.9920.0718
last 20 years200020184.0453.772-0.27260 0.13684-1.9920.0718

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 43.5 14.7-1.0862 0.0789-13.7741.0000
EC 43.5500.0 2.4426 0.0789 30.974<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  mercury in biota at Crosby (Mersey Channel)


Raw data with assessment

Raw data with assessment of  mercury in biota at Crosby (Mersey Channel)


Assessment plot

Assessment plot for  mercury in biota at Crosby (Mersey Channel)


Metals data

Metals data for assessment of  mercury in biota at Crosby (Mersey Channel)


Metals assessment

Metals assessment of  mercury in biota at Crosby (Mersey Channel)


Related pages

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