Projects

CSEMP assessment of lead in sediment at Cosheston Point (Milford Haven)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-76.71-75.3241.35 -82.71
linear2-74.72-72.0641.36 -82.72 0.017 10.8963
smooth (df = 2)3-79.37-74.8344.69 -89.37 6.648 10.0099
smooth (df = 3)4-77.66-70.4644.83 -89.66 0.288 10.5918
smooth (df = 4)5-86.89-76.0050.44-100.8911.229 10.0008

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920184.0964.1490.053300.093120.5720.5786
last 20 years199920184.0964.1490.053300.093120.5720.5786

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC63.3738.00-0.5114 0.0593-8.6271.0000
ERL63.3747.00-0.2989 0.0593-5.0410.9998

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in sediment at Cosheston Point (Milford Haven)


Raw data with assessment

Raw data with assessment of  lead in sediment at Cosheston Point (Milford Haven)


Assessment plot

Assessment plot for  lead in sediment at Cosheston Point (Milford Haven)


Metals data

Metals data for assessment of  lead in sediment at Cosheston Point (Milford Haven)


Metals assessment

Metals assessment of  lead in sediment at Cosheston Point (Milford Haven)


Related pages

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