Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean143.7445.02-18.8737.74
linear238.4040.86-15.2030.407.340 10.0067
smooth (df = 2)333.2337.39-11.6123.237.171 10.0074
smooth (df = 3)435.2141.76-11.6123.210.013 10.9103
smooth (df = 4)532.1941.99 -9.1018.195.021 10.0250

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920162.69423.08750.39330.10383.7870.0020
last 20 years199920162.69423.08750.39330.10383.7870.0020

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC21.92225.0000.131400.085311.5400.0729

 


Raw data with supporting information

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


Raw data with assessment

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


Assessment plot

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


Metals data

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


Metals assessment

Metals assessment of  arsenic 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