Projects

CSEMP assessment of lead in sediment at Sunk Island (Humber)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-20.34-17.7713.17-26.34
linear2-20.66-15.3314.33-28.662.319 10.1278
smooth (df = 2)3-20.76-10.7615.38-30.762.100 10.1473
smooth (df = 3)4-22.35 -4.3517.17-34.353.585 10.0583

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920134.3914.163-0.22757 0.14417-1.5780.1531
last 20 years199920134.3914.163-0.22757 0.14417-1.5780.1531

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC64.2938.00-0.5258 0.0836-6.2910.9999
ERL64.2947.00-0.3132 0.0836-3.7470.9972

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in sediment at Sunk Island (Humber)


Raw data with assessment

Raw data with assessment of  lead in sediment at Sunk Island (Humber)


Assessment plot

Assessment plot for  lead in sediment at Sunk Island (Humber)


Metals data

Metals data for assessment of  lead in sediment at Sunk Island (Humber)


Metals assessment

Metals assessment of  lead in sediment at Sunk Island (Humber)


Related pages

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