Projects

CSEMP assessment of lead in biota at Ferry Crossing (Tyne)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean153.3455.91-23.6747.34
linear253.4758.80-22.7345.471.870 10.1715
smooth (df = 2)355.0165.01-22.5045.010.459 10.4982
smooth (df = 3)456.6774.67-22.3344.670.340 10.5597

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200320177.8767.507-0.3690 0.2615-1.4110.1960
last 20 years200320177.8767.507-0.3690 0.2615-1.4110.1960

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC1821.5 211.9-2.1513 0.1485-14.4901.0000
EC1821.51500.0-0.1942 0.1485 -1.3080.8864

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in biota at Ferry Crossing (Tyne)


Raw data with assessment

Raw data with assessment of  lead in biota at Ferry Crossing (Tyne)


Assessment plot

Assessment plot for  lead in biota at Ferry Crossing (Tyne)


Metals data

Metals data for assessment of  lead in biota at Ferry Crossing (Tyne)


Metals assessment

Metals assessment of  lead in biota at Ferry Crossing (Tyne)


Related pages

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