Projects

CSEMP assessment of lead in sediment at outer (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean158.3859.77-26.1952.38
linear251.9454.60-21.9743.948.445 10.0037
smooth (df = 2)348.7953.34-19.4038.795.144 10.0233
smooth (df = 3)449.4856.68-18.7437.481.312 10.2519
smooth (df = 4)549.6860.57-17.8435.681.800 10.1797

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200020164.5903.599-0.9900 0.2748-3.6030.0032
last 20 years200020164.5903.599-0.9900 0.2748-3.6030.0032

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC36.5838.000.038090.233790.1630.4365
ERL36.5847.000.250650.233791.0720.1516

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in sediment at outer (Firth of Clyde)


Raw data with assessment

Raw data with assessment of  lead in sediment at outer (Firth of Clyde)


Assessment plot

Assessment plot for  lead in sediment at outer (Firth of Clyde)


Metals data

Metals data for assessment of  lead in sediment at outer (Firth of Clyde)


Metals assessment

Metals assessment of  lead in sediment at outer (Firth of Clyde)


Related pages

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