Projects

CSEMP assessment of copper in sediment at Gabbard 2 (Thames)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean141.0444.64-17.5235.04
linear242.9350.93-17.4734.930.103 10.7481
smooth (df = 2)342.8459.51-16.4232.842.094 10.1479

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200120173.8613.627-0.2336 0.7246-0.3220.7581
last 20 years200120173.8613.627-0.2336 0.7246-0.3220.7581

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC37.627.0-0.3312 0.4351-0.7610.7623
ERL37.634.0-0.1007 0.4351-0.2310.5876

 


Raw data with supporting information

Raw data with supporting information for assessment of  copper in sediment at Gabbard 2 (Thames)


Raw data with assessment

Raw data with assessment of  copper in sediment at Gabbard 2 (Thames)


Assessment plot

Assessment plot for  copper in sediment at Gabbard 2 (Thames)


Metals data

Metals data for assessment of  copper in sediment at Gabbard 2 (Thames)


Metals assessment

Metals assessment of  copper in sediment at Gabbard 2 (Thames)


Related pages

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