Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean129.8233.42-11.9123.82
linear231.3039.30-11.6523.300.523 10.4697
smooth (df = 2)332.6249.28-11.3122.620.684 10.4081

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200120175.0394.828-0.21159 0.28277-0.7480.4826
last 20 years200120175.0394.828-0.21159 0.28277-0.7480.4826

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC124.92122.00-0.02365 0.18799-0.1260.5480
ERL124.92150.00 0.18297 0.18799 0.9730.1840

 


Raw data with supporting information

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


Raw data with assessment

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


Assessment plot

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


Metals data

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


Metals assessment

Metals assessment of  zinc 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