Projects

CSEMP assessment of benzo[a]anthracene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean164.7567.75-29.3758.75
linear265.7572.15-28.8757.751.001 10.3170
smooth (df = 2)367.4279.92-28.7157.420.328 10.5665

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200520130.76041.41740.65700.63881.0280.3379
last 20 years200520130.76041.41740.65700.63881.0280.3379

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 4.13 16.001.3550.386 3.5110.0049
ERL 4.13261.004.1470.38610.744<0.0001

 


Related pages

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