Projects

CSEMP assessment of lead in sediment at middle (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1 -6.96-4.39 6.48-12.96
linear2 -5.98-0.65 6.99-13.981.020 10.3124
smooth (df = 2)3-11.54-1.5410.77-21.547.560 10.0060
smooth (df = 3)4-10.30 7.7011.15-22.300.757 10.3841

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200620163.9763.825-0.15032 0.13320-1.1290.2918
last 20 years200620163.9763.825-0.15032 0.13320-1.1290.2918

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC45.8538.00-0.18769 0.06546-2.8670.9895
ERL45.8547.00 0.02487 0.06546 0.3800.3569

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in sediment at middle (Firth of Clyde)


Raw data with assessment

Raw data with assessment of  lead in sediment at middle (Firth of Clyde)


Assessment plot

Assessment plot for  lead in sediment at middle (Firth of Clyde)


Metals data

Metals data for assessment of  lead in sediment at middle (Firth of Clyde)


Metals assessment

Metals assessment of  lead in sediment at middle (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