CSEMP assessment of naphthalene in sediment at Sea of Hebrides

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
linear2169.33175.73-80.67161.332.184 10.1394
smooth (df = 2)3171.15183.65-80.58161.150.180 10.6717

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
last 20 years200620161.68392.27520.59120.36291.6290.1473

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 9.73 8.00-0.1957 0.2293-0.8540.7893
ERL 9.73160.00 2.8000 0.229312.214<0.0001


Related pages

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