Projects

CSEMP assessment of lead in sediment at Celtic Deep

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-19.20-17.4012.60-25.20
linear2-26.21-22.6617.11-34.219.017 10.0027
smooth (df = 2)3-25.08-18.8317.54-35.080.863 10.3528
smooth (df = 3)4-24.49-14.2018.24-36.491.410 10.2351

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920183.4053.8640.45880.12673.6220.0040
last 20 years199920183.4053.8640.45880.12673.6220.0040

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC47.6638.00-0.22657 0.08370-2.7070.9898
ERL47.6647.00-0.01401 0.08370-0.1670.5650

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in sediment at Celtic Deep


Raw data with assessment

Raw data with assessment of  lead in sediment at Celtic Deep


Assessment plot

Assessment plot for  lead in sediment at Celtic Deep


Metals data

Metals data for assessment of  lead in sediment at Celtic Deep


Metals assessment

Metals assessment of  lead in sediment at Celtic Deep


Related pages

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