Projects

CSEMP assessment of chromium in sediment at Billingham-Bamlett's Bight (Tees)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean121.3023.10-7.6515.30
linear218.3721.92-5.1810.374.935 10.0263
smooth (df = 2)318.0524.30-4.02 8.052.321 10.1276
smooth (df = 3)419.9730.25-3.98 7.970.078 10.7794

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920134.6475.6671.02030.41412.4640.0315
last 20 years199920134.6475.6671.02030.41412.4640.0315

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
ERL289.18 81.00-1.2726 0.2618-4.8600.9997

 


Raw data with supporting information

Raw data with supporting information for assessment of  chromium in sediment at Billingham-Bamlett


Raw data with assessment

Raw data with assessment of  chromium in sediment at Billingham-Bamlett


Assessment plot

Assessment plot for  chromium in sediment at Billingham-Bamlett


Metals data

Metals data for assessment of  chromium in sediment at Billingham-Bamlett


Metals assessment

Metals assessment of  chromium in sediment at Billingham-Bamlett


Related pages

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