Projects

CSEMP assessment of chromium in sediment at Woolwich (Thames)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean165.2567.82-29.6259.25
linear264.4469.77-28.2256.442.811 10.0936
smooth (df = 2)365.7375.73-27.8655.730.708 10.4001
smooth (df = 3)465.9883.98-26.9953.981.743 10.1868

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920124.6915.2760.58500.33011.7720.1143
last 20 years199920124.6915.2760.58500.33011.7720.1143

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
ERL195.68 81.00-0.8820 0.2261-3.9020.9977

 


Raw data with supporting information

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


Raw data with assessment

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


Assessment plot

Assessment plot for  chromium in sediment at Woolwich (Thames)


Metals data

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


Metals assessment

Metals assessment of  chromium 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