Projects

CSEMP assessment of copper in sediment at Irish Sea Buoy

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean123.0524.69-8.5317.05
linear217.8821.08-4.94 9.887.177 10.0074
smooth (df = 2)318.9324.48-4.46 8.930.949 10.3300
smooth (df = 3)416.5825.58-2.29 4.584.349 10.0370

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920123.4622.668-0.7946 0.2593-3.0650.0098
last 20 years199920123.4622.668-0.7946 0.2593-3.0650.0098

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC14.4127.000.62820.14474.3410.0005
ERL14.4134.000.85870.14475.935<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  copper in sediment at Irish Sea Buoy


Raw data with assessment

Raw data with assessment of  copper in sediment at Irish Sea Buoy


Assessment plot

Assessment plot for  copper in sediment at Irish Sea Buoy


Metals data

Metals data for assessment of  copper in sediment at Irish Sea Buoy


Metals assessment

Metals assessment of  copper in sediment at Irish Sea Buoy


Related pages

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