Projects

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

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean144.4046.40-19.2038.40
linear246.4050.40-19.2038.400.003 10.9544
smooth (df = 2)344.4151.56-17.2134.413.982 10.0460
smooth (df = 3)445.4857.48-16.7433.480.934 10.3338

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20022018-1.9880-1.97410.013950.243840.0570.9555
last 20 years20022018-1.9880-1.97410.013950.243840.0570.9555

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC0.138890.07000-0.6852 0.1639-4.1800.9991
ERL0.138890.15000 0.0770 0.1639 0.4690.3244

 


Raw data with supporting information

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


Raw data with assessment

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


Assessment plot

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


Metals data

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


Metals assessment

Metals assessment of  mercury 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