Projects

CSEMP assessment of arsenic in sediment at Sea of Hebrides

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1210.87213.12-102.43204.87
linear2211.59216.16-101.79203.591.280 10.2579
smooth (df = 2)3212.46220.80-101.23202.461.126 10.2886
smooth (df = 3)4211.11225.51 -99.56199.113.350 10.0672

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200620162.33902.58790.248860.219041.1360.2852
last 20 years200620162.33902.58790.248860.219041.1360.2852

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC13.30225.0000.63100.12035.2460.0003

 


Raw data with supporting information

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


Raw data with assessment

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


Assessment plot

Assessment plot for  arsenic in sediment at Sea of Hebrides


Metals data

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


Metals assessment

Metals assessment of  arsenic 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