Projects

CSEMP assessment of phenanthrene in sediment at inner (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1210.15211.53-102.07204.15
linear2207.31209.97 -99.65199.314.842 10.0278
smooth (df = 2)3208.92213.46 -99.46198.920.391 10.5318
smooth (df = 3)4207.63214.83 -97.82195.633.285 10.0699
smooth (df = 4)5209.63220.52 -97.82195.630.000 10.9968

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200220184.8626.0631.20150.50882.3610.0332
last 20 years200220184.8626.0631.20150.50882.3610.0332

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC429.7 32.0-2.5973 0.2854-9.1011.0000
ERL429.7240.0-0.5824 0.2854-2.0410.9697

 


Related pages

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