Projects

CSEMP assessment of chrysene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean170.8173.38-32.4164.81
linear272.7578.09-32.3864.750.058 10.8090
smooth (df = 2)374.0784.07-32.0364.070.688 10.4067
smooth (df = 3)475.9093.90-31.9563.900.162 10.6874

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200520182.05991.9648-0.0951 0.3934-0.2420.8150
last 20 years200520182.05991.9648-0.0951 0.3934-0.2420.8150

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 7.1 20.01.0310.283 3.6370.0033
ERL 7.1384.03.9860.28314.062<0.0001

 


Related pages

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