Projects

CSEMP assessment of naphthalene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean145.1548.15-19.5839.15
linear246.8053.20-19.4038.800.355 10.5512
smooth (df = 2)348.6461.14-19.3238.640.155 10.6941

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200520130.70940.3975-0.3119 0.5185-0.6010.5665
last 20 years200520130.70940.3975-0.3119 0.5185-0.6010.5665

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 1.49 8.001.6820.313 5.3820.0005
ERL 1.49160.004.6780.31314.967<0.0001

 


Related pages

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