Projects

CSEMP assessment of chromium in sediment at Forth Estuary

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean111.0812.28-2.545.08
linear212.6714.96-2.334.670.415 10.5195
smooth (df = 2)314.6418.48-2.324.640.033 10.8554
smooth (df = 3)416.4322.43-2.214.430.207 10.6491
smooth (df = 4)517.8226.73-1.913.820.609 10.4351

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200020174.4704.409-0.06174 0.09572-0.6450.5281
last 20 years200020174.4704.409-0.06174 0.09572-0.6450.5281

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
ERL82.1581.00-0.01415 0.05760-0.2460.5955

 


Raw data with supporting information

Raw data with supporting information for assessment of  chromium in sediment at Forth Estuary


Raw data with assessment

Raw data with assessment of  chromium in sediment at Forth Estuary


Assessment plot

Assessment plot for  chromium in sediment at Forth Estuary


Metals data

Metals data for assessment of  chromium in sediment at Forth Estuary


Metals assessment

Metals assessment of  chromium in sediment at Forth Estuary


Related pages

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