Projects

CSEMP assessment of benzo[a]anthracene in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean150.8653.86-22.4344.86
linear252.7259.12-22.3644.720.137 10.7109
smooth (df = 2)354.3866.88-22.1944.380.336 10.5622

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200520131.08301.31630.23340.62700.3720.7208
last 20 years200520131.08301.31630.23340.62700.3720.7208

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 3.73 16.001.4560.377 3.8640.0031
ERL 3.73261.004.2480.37711.271<0.0001

 


Related pages

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