Projects

CSEMP assessment of lead in sediment at Lough Foyle

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1 -4.93-2.93 5.47-10.93
linear2 -9.40-5.40 8.70-17.406.463 10.0110
smooth (df = 2)3-13.28-6.1311.64-23.285.881 10.0153
smooth (df = 3)4-12.71-0.7112.35-24.711.432 10.2314

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200320183.2312.755-0.4758 0.1589-2.9940.0151
last 20 years200320183.2312.755-0.4758 0.1589-2.9940.0151

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC15.7238.000.88260.1040 8.491<0.0001
ERL15.7247.001.09520.104010.535<0.0001

 


Raw data with supporting information

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


Raw data with assessment

Raw data with assessment of  lead in sediment at Lough Foyle


Assessment plot

Assessment plot for  lead in sediment at Lough Foyle


Metals data

Metals data for assessment of  lead in sediment at Lough Foyle


Metals assessment

Metals assessment of  lead 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