Projects

CSEMP assessment of copper in sediment at Woolwich (Thames)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1116.28118.85-55.14110.28
linear2116.93122.27-54.47108.931.345 10.2462
smooth (df = 2)3117.84127.84-53.92107.841.088 10.2969
smooth (df = 3)4116.26134.26-52.13104.263.584 10.0583

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920124.7495.5190.76940.64501.1930.2671
last 20 years199920124.7495.5190.76940.64501.1930.2671

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC249.34 27.00-2.2230 0.4382-5.0730.9995
ERL249.34 34.00-1.9925 0.4382-4.5470.9991

 


Raw data with supporting information

Raw data with supporting information for assessment of  copper in sediment at Woolwich (Thames)


Raw data with assessment

Raw data with assessment of  copper in sediment at Woolwich (Thames)


Assessment plot

Assessment plot for  copper in sediment at Woolwich (Thames)


Metals data

Metals data for assessment of  copper in sediment at Woolwich (Thames)


Metals assessment

Metals assessment of  copper in sediment at Woolwich (Thames)


Related pages

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