Projects

CSEMP assessment of lead in sediment at Lough Foyle

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-3.43-1.184.72 -9.43
linear2-4.54 0.036.27-12.543.107 10.0779
smooth (df = 2)3-6.69 1.658.34-16.694.145 10.0418
smooth (df = 3)4-6.14 8.269.07-18.141.454 10.2278

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200320173.4473.051-0.3962 0.2046-1.9360.0848
last 20 years200320173.4473.051-0.3962 0.2046-1.9360.0848

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC21.1438.000.58660.11275.2030.0003
ERL21.1447.000.79920.11277.089<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