Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-73.37-71.8739.69-79.37
linear2-75.42-72.5141.71-83.424.047 10.0442
smooth (df = 2)3-73.53-68.5341.77-83.530.109 10.7418
smooth (df = 3)4-80.77-72.7746.38-92.779.237 10.0024
smooth (df = 4)5-78.94-66.6946.47-92.940.173 10.6778

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920144.0553.697-0.3582 0.0822-4.3550.0011
last 20 years199920144.0553.697-0.3582 0.0822-4.3550.0011

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC40.3238.00-0.05918 0.04443-1.3320.8951
ERL40.3247.00 0.15338 0.04443 3.4520.0027

 


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