Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1146.47148.72-70.24140.47
linear2148.47153.04-70.23140.470.005 10.9423
smooth (df = 2)3150.04158.37-70.02140.040.429 10.5126
smooth (df = 3)4151.68166.08-69.84139.680.362 10.5471

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200620183.4263.4560.03030.41930.0720.9439
last 20 years200620183.4263.4560.03030.41930.0720.9439

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 31.7 8.0-1.3770 0.1961-7.0231.0000
ERL 31.7160.0 1.6187 0.1961 8.256<0.0001

 


Related pages

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