Projects

CSEMP assessment of mercury in biota at Woolwich (Middle Thames)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean163.8265.62-28.9157.82
linear264.4968.04-28.2456.491.336 10.2478
smooth (df = 2)366.3872.63-28.1956.380.109 10.7408
smooth (df = 3)467.4677.75-27.7355.460.912 10.3396

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920125.3675.019-0.3486 0.2952-1.1810.2626
last 20 years199920125.3675.019-0.3486 0.2952-1.1810.2626

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC151.2 35.0-1.4633 0.1790-8.1731.0000
EC151.2500.0 1.1959 0.1790 6.680<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  mercury in biota at Woolwich (Middle Thames)


Raw data with assessment

Raw data with assessment of  mercury in biota at Woolwich (Middle Thames)


Assessment plot

Assessment plot for  mercury in biota at Woolwich (Middle Thames)


Metals data

Metals data for assessment of  mercury in biota at Woolwich (Middle Thames)


Metals assessment

Metals assessment of  mercury in biota at Woolwich (Middle Thames)


Related pages

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