Projects

CSEMP assessment of nickel in sediment at Sea of Hebrides

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean119.2021.20-6.6013.20
linear220.3824.38-6.1912.380.822 10.3647
smooth (df = 2)322.0229.17-6.0112.020.356 10.5509
smooth (df = 3)423.6735.67-5.8411.670.353 10.5524

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200620173.6483.7870.138750.151730.9140.3820
last 20 years200620173.6483.7870.138750.151730.9140.3820

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC44.1136.00-0.20320 0.08601-2.3630.9801

 


Raw data with supporting information

Raw data with supporting information for assessment of  nickel in sediment at Sea of Hebrides


Raw data with assessment

Raw data with assessment of  nickel in sediment at Sea of Hebrides


Assessment plot

Assessment plot for  nickel in sediment at Sea of Hebrides


Metals data

Metals data for assessment of  nickel in sediment at Sea of Hebrides


Metals assessment

Metals assessment of  nickel in sediment at Sea of Hebrides


Related pages

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