Projects

CSEMP assessment of lead in sediment at Whiteness Head (Moray Firth)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1 11.7313.11-2.86 5.73
linear2 -0.34 2.33 4.17 -8.3414.068 10.0002
smooth (df = 2)3 -9.74-5.20 9.87-19.7411.403 10.0007
smooth (df = 3)4-10.01-2.8111.01-22.01 2.273 10.1316
smooth (df = 4)5 -8.32 2.5711.16-22.32 0.302 10.5828

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920164.5143.363-1.1511 0.1772-6.496<0.0001
last 20 years199920164.5143.363-1.1511 0.1772-6.496<0.0001

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC28.8738.000.27490.14111.9480.0367
ERL28.8747.000.48750.14113.4540.0021

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in sediment at Whiteness Head (Moray Firth)


Raw data with assessment

Raw data with assessment of  lead in sediment at Whiteness Head (Moray Firth)


Assessment plot

Assessment plot for  lead in sediment at Whiteness Head (Moray Firth)


Metals data

Metals data for assessment of  lead in sediment at Whiteness Head (Moray Firth)


Metals assessment

Metals assessment of  lead in sediment at Whiteness Head (Moray Firth)


Related pages

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