Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1 -8.97-6.72 7.48-14.97
linear2 -7.03-2.46 7.52-15.030.068 10.7946
smooth (df = 2)3 -6.14 2.20 8.07-16.141.102 10.2939
smooth (df = 3)4-10.25 4.1511.13-22.256.116 10.0134

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200620173.9223.884-0.03797 0.14107-0.2690.7939
last 20 years200620173.9223.884-0.03797 0.14107-0.2690.7939

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC48.6138.00-0.24619 0.07198-3.4200.9962
ERL48.6147.00-0.03363 0.07198-0.4670.6743

 


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