Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean154.6055.99-24.3048.60
linear238.9041.57-15.4530.9017.702 1<0.0001
smooth (df = 2)332.7137.25-11.3522.71 8.193 10.0042
smooth (df = 3)433.3340.53-10.6621.33 1.377 10.2406
smooth (df = 4)535.1946.08-10.5921.19 0.140 10.7080

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920184.2255.3351.11040.13878.006<0.0001
last 20 years199920184.2255.3351.11040.13878.006<0.0001

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
ERL207.51 81.00-0.9407 0.1241-7.5801.0000

 


Raw data with supporting information

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


Raw data with assessment

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


Assessment plot

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


Metals data

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


Metals assessment

Metals assessment of  chromium 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