Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1 9.7210.92-1.86 3.72
linear211.0213.31-1.51 3.020.697 10.4036
smooth (df = 2)3 9.4513.30 0.28-0.553.571 10.0588
smooth (df = 3)410.9816.98 0.51-1.020.469 10.4934
smooth (df = 4)510.1419.05 1.93-3.862.841 10.0919

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920174.8624.755-0.10642 0.12683-0.8390.4138
last 20 years199920174.8624.755-0.10642 0.12683-0.8390.4138

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC116.18 38.00-1.1176 0.0741-15.0781.0000
ERL116.18 47.00-0.9050 0.0741-12.2101.0000

 


Raw data with supporting information

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


Raw data with assessment

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


Assessment plot

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


Metals data

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


Metals assessment

Metals assessment of  lead in sediment at inner (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