Projects

CSEMP assessment of mercury in sediment at Woolwich (Thames)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean124.9629.46-9.4818.96
linear222.4433.11-7.2214.444.520 10.0335
smooth (df = 2)316.7841.78-3.39 6.787.663 10.0056

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200220120.20472.11111.90640.75522.5240.0529
last 20 years200220120.20472.11111.90640.75522.5240.0529

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC8.2580.070-4.770 0.502-9.5010.9999
ERL8.2580.150-4.008 0.502-7.9830.9998

 


Raw data with supporting information

Raw data with supporting information for assessment of  mercury in sediment at Woolwich (Thames)


Raw data with assessment

Raw data with assessment of  mercury in sediment at Woolwich (Thames)


Assessment plot

Assessment plot for  mercury in sediment at Woolwich (Thames)


Metals data

Metals data for assessment of  mercury in sediment at Woolwich (Thames)


Metals assessment

Metals assessment of  mercury in sediment at Woolwich (Thames)


Related pages

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