Projects

CSEMP assessment of arsenic in sediment at Lough Foyle

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean130.1132.11-12.0524.11
linear231.9535.95-11.9823.950.156 10.6933
smooth (df = 2)332.5639.70-11.2822.561.396 10.2374
smooth (df = 3)434.5446.54-11.2722.540.016 10.8996

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200320182.66682.5805-0.08625 0.21727-0.3970.6997
last 20 years200320182.66682.5805-0.08625 0.21727-0.3970.6997

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC13.20425.0000.63830.12035.3050.0002

 


Raw data with supporting information

Raw data with supporting information for assessment of  arsenic in sediment at Lough Foyle


Raw data with assessment

Raw data with assessment of  arsenic in sediment at Lough Foyle


Assessment plot

Assessment plot for  arsenic in sediment at Lough Foyle


Metals data

Metals data for assessment of  arsenic in sediment at Lough Foyle


Metals assessment

Metals assessment of  arsenic in sediment at Lough Foyle


Related pages

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