Projects

CSEMP assessment of lead in sediment at Solway Firth

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-22.22-20.7214.11-28.22
linear2-22.69-19.7815.34-30.692.466 10.1163
smooth (df = 2)3-28.72-23.7219.36-38.728.029 10.0046
smooth (df = 3)4-28.47-20.4720.24-40.471.757 10.1851
smooth (df = 4)5-27.33-15.0820.67-41.330.861 10.3534

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200120164.0713.686-0.3848 0.1761-2.1850.0494
last 20 years200120164.0713.686-0.3848 0.1761-2.1850.0494

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC39.8838.00-0.04821 0.13955-0.3450.6321
ERL39.8847.00 0.16435 0.13955 1.1780.1309

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in sediment at Solway Firth


Raw data with assessment

Raw data with assessment of  lead in sediment at Solway Firth


Assessment plot

Assessment plot for  lead in sediment at Solway Firth


Metals data

Metals data for assessment of  lead in sediment at Solway Firth


Metals assessment

Metals assessment of  lead in sediment at Solway Firth


Related pages

  • Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
  • Assessment methodology for metals in sediment
  • Accessment criteria for metals in sediment