Projects

CSEMP assessment of mercury in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean113.7618.26-3.887.76
linear215.4726.14-3.747.470.288 10.5912
smooth (df = 2)317.4442.44-3.727.440.028 10.8666

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20062013-3.221-3.374-0.15288 0.27990-0.5460.6084
last 20 years20062013-3.221-3.374-0.15288 0.27990-0.5460.6084

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC0.034260.070000.71470.18503.8640.0059
ERL0.034260.150001.47680.18507.9850.0002

 


Related pages

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