Projects

CSEMP assessment of zinc in sediment at Woolwich (Thames)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean17.6710.24-0.83 1.67
linear26.7412.08 0.63-1.262.926 10.0871
smooth (df = 2)37.2917.29 1.35-2.711.451 10.2283
smooth (df = 3)46.6024.60 2.70-5.402.690 10.1010

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920125.8156.6600.84480.45961.8380.1033
last 20 years199920125.8156.6600.84480.45961.8380.1033

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC780.5122.0-1.8559 0.3056-6.0730.9999
ERL780.5150.0-1.6493 0.3056-5.3970.9997

 


Raw data with supporting information

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


Raw data with assessment

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


Assessment plot

Assessment plot for  zinc in sediment at Woolwich (Thames)


Metals data

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


Metals assessment

Metals assessment of  zinc 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