CSEMP assessment of indeno[123-cd]pyrene in sediment at outer (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
linear2122.26124.72-57.13114.269.596 10.0019
smooth (df = 2)3114.33118.49-52.16104.339.929 10.0016
smooth (df = 3)4116.33122.87-52.16104.330.002 10.9690
smooth (df = 4)5115.78125.58-50.89101.782.544 10.1107

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200020175.3764.549-0.8277 0.1831-4.5200.0005
last 20 years200020175.3764.549-0.8277 0.1831-4.5200.0005

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 94.49103.000.086210.152290.5660.2901


Related pages

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