Projects

CSEMP assessment of chromium in sediment at Sea of Hebrides

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean116.9618.96-5.4810.96
linear218.5522.55-5.2810.550.407 10.5235
smooth (df = 2)318.4425.59-4.22 8.442.110 10.1463
smooth (df = 3)418.0030.00-3.00 6.002.444 10.1180

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200620174.5064.5840.077500.121090.6400.5366
last 20 years200620174.5064.5840.077500.121090.6400.5366

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
ERL97.8781.00-0.18917 0.06826-2.7710.9901

 


Raw data with supporting information

Raw data with supporting information for assessment of  chromium in sediment at Sea of Hebrides


Raw data with assessment

Raw data with assessment of  chromium in sediment at Sea of Hebrides


Assessment plot

Assessment plot for  chromium in sediment at Sea of Hebrides


Metals data

Metals data for assessment of  chromium in sediment at Sea of Hebrides


Metals assessment

Metals assessment of  chromium in sediment at Sea of Hebrides


Related pages

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