Projects

CSEMP assessment of arsenic in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1 9.0912.69-1.54 3.09
linear211.0519.05-1.53 3.050.036 10.8487
smooth (df = 2)3 9.3926.05 0.31-0.613.663 10.0556

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200620131.35801.3122-0.04580 0.21489-0.2130.8383
last 20 years200620131.35801.3122-0.04580 0.21489-0.2130.8383

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 3.71425.0001.90660.116116.420<0.0001

 


Related pages

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