CSEMP assessment of copper in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean17.7112.21-0.85 1.71
linear29.2919.95-0.64 1.290.421 10.5167
smooth (df = 2)33.5728.57 3.21-6.437.713 10.0055

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200620132.31582.1522-0.16357 0.25021-0.6540.5421
last 20 years200620132.31582.1522-0.16357 0.25021-0.6540.5421

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 8.627.01.14360.16157.0830.0004
ERL 8.634.01.37410.16158.5110.0002


Related pages

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