Projects

CSEMP assessment of mercury in sediment at inner (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean184.2185.41-39.1178.21
linear271.9274.20-31.9663.9214.296 10.0002
smooth (df = 2)373.5977.44-31.8063.59 0.324 10.5692
smooth (df = 3)475.5981.59-31.8063.59 0.000 10.9838
smooth (df = 4)577.5486.45-31.7763.54 0.049 10.8243

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall19992017-0.4530-0.9924-0.5395 0.1183-4.5620.0003
last 20 years19992017-0.4530-0.9924-0.5395 0.1183-4.5620.0003

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC0.37070.0700-1.6668 0.0675-24.6841.0000
ERL0.37070.1500-0.9047 0.0675-13.3971.0000

 


Raw data with supporting information

Raw data with supporting information for assessment of  mercury in sediment at inner (Firth of Clyde)


Raw data with assessment

Raw data with assessment of  mercury in sediment at inner (Firth of Clyde)


Assessment plot

Assessment plot for  mercury in sediment at inner (Firth of Clyde)


Metals data

Metals data for assessment of  mercury in sediment at inner (Firth of Clyde)


Metals assessment

Metals assessment of  mercury in sediment at inner (Firth of Clyde)


Related pages

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