Projects

CSEMP assessment of naphthalene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean158.6761.67-26.3452.67
linear259.6866.08-25.8451.680.993 10.3191
smooth (df = 2)361.5874.08-25.7951.580.102 10.7489

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200520130.95360.4880-0.4655 0.4555-1.0220.3408
last 20 years200520130.95360.4880-0.4655 0.4555-1.0220.3408

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 1.63 8.001.5910.279 5.7110.0004
ERL 1.63160.004.5870.27916.462<0.0001

 


Related pages

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