Projects

CSEMP assessment of chromium in sediment at inner (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean15.96 7.160.02-0.04
linear24.32 6.601.84-3.683.646 10.0562
smooth (df = 2)35.24 9.092.38-4.761.078 10.2991
smooth (df = 3)47.2213.222.39-4.780.021 10.8851
smooth (df = 4)57.6516.563.18-6.351.570 10.2102

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920175.0194.774-0.24419 0.12263-1.9910.0638
last 20 years199920175.0194.774-0.24419 0.12263-1.9910.0638

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
ERL118.44 81.00-0.380 0.072-5.2771.0000

 


Raw data with supporting information

Raw data with supporting information for assessment of  chromium in sediment at inner (Firth of Clyde)


Raw data with assessment

Raw data with assessment of  chromium in sediment at inner (Firth of Clyde)


Assessment plot

Assessment plot for  chromium in sediment at inner (Firth of Clyde)


Metals data

Metals data for assessment of  chromium in sediment at inner (Firth of Clyde)


Metals assessment

Metals assessment of  chromium in sediment at inner (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