Projects

CSEMP assessment of chromium in sediment at inner (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean16.84 8.13-0.42 0.84
linear25.70 8.17 1.15-2.303.140 10.0764
smooth (df = 2)36.2910.46 1.85-3.711.413 10.2346
smooth (df = 3)48.2814.82 1.86-3.720.013 10.9096
smooth (df = 4)56.4116.21 3.79-7.593.868 10.0492

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920165.0204.784-0.23620 0.12839-1.8400.0857
last 20 years199920165.0204.784-0.23620 0.12839-1.8400.0857

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
ERL119.6 81.0-0.3897 0.0755-5.1600.9999

 


Raw data with supporting information

Raw data with supporting information for assessment of  chromium in sediment at inner (Firth of Clyde)


Raw data with assessment

Raw data with assessment of  chromium in sediment at inner (Firth of Clyde)


Assessment plot

Assessment plot for  chromium in sediment at inner (Firth of Clyde)


Metals data

Metals data for assessment of  chromium in sediment at inner (Firth of Clyde)


Metals assessment

Metals assessment of  chromium in sediment at inner (Firth of Clyde)


Related pages

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