Projects

CSEMP assessment of chrysene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean168.0071.00-31.0062.00
linear269.3675.76-30.6861.360.638 10.4244
smooth (df = 2)371.3583.85-30.6861.350.006 10.9359

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200520132.13981.8514-0.2884 0.3578-0.8060.4468
last 20 years200520132.13981.8514-0.2884 0.3578-0.8060.4468

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 6.4 20.01.1440.232 4.9390.0008
ERL 6.4384.04.0990.23217.694<0.0001

 


Related pages

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