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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
linear2117.45121.00-54.72109.452.628 10.1050
smooth (df = 2)3117.54123.79-53.77107.541.903 10.1677
smooth (df = 3)4119.12129.41-53.56107.120.420 10.5168

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
last 20 years200620184.1234.6380.51410.31331.6410.1290

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC103.3 32.0-1.1719 0.1731-6.7701.0000
ERL103.3240.0 0.8430 0.1731 4.8700.0002


Related pages

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