Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean134.3635.65-14.1828.36
linear225.1227.58 -8.5617.1211.246 10.0008
smooth (df = 2)315.0419.20 -2.52 5.0412.078 10.0005
smooth (df = 3)416.9323.47 -2.46 4.93 0.110 10.7403
smooth (df = 4)516.9026.70 -1.45 2.90 2.023 10.1549

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200020173.8802.893-0.9870 0.1815-5.439<0.0001
last 20 years200020173.8802.893-0.9870 0.1815-5.439<0.0001

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC18.0527.000.40270.14832.7140.0084
ERL18.0534.000.63320.14834.2680.0004

 


Raw data with supporting information

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


Raw data with assessment

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


Assessment plot

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


Metals data

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


Metals assessment

Metals assessment of  copper 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