Projects

CSEMP assessment of chromium in sediment at Celtic Deep

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-23.10-21.3014.55-29.10
linear2-31.64-28.0919.82-39.6410.542 10.0012
smooth (df = 2)3-31.72-25.4720.86-41.72 2.079 10.1494
smooth (df = 3)4-30.21-19.9221.10-42.21 0.488 10.4848

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920184.2664.6050.33870.08344.0600.0019
last 20 years199920184.2664.6050.33870.08344.0600.0019

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
ERL100 81-0.21072 0.05872-3.5880.9979

 


Raw data with supporting information

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


Raw data with assessment

Raw data with assessment of  chromium in sediment at Celtic Deep


Assessment plot

Assessment plot for  chromium in sediment at Celtic Deep


Metals data

Metals data for assessment of  chromium in sediment at Celtic Deep


Metals assessment

Metals assessment of  chromium 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