Projects

CSEMP assessment of mercury in sediment at Sea of Hebrides

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean178.0780.64-36.0372.07
linear276.6982.02-34.3468.693.377 10.0661
smooth (df = 2)378.6988.69-34.3468.690.004 10.9506
smooth (df = 3)479.5397.53-33.7667.531.156 10.2823

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20062016-2.6372-2.9943-0.3571 0.1775-2.0130.0790
last 20 years20062016-2.6372-2.9943-0.3571 0.1775-2.0130.0790

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC0.050070.070000.33510.1030 3.2540.0058
ERL0.050070.150001.09720.103010.657<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  mercury in sediment at Sea of Hebrides


Raw data with assessment

Raw data with assessment of  mercury in sediment at Sea of Hebrides


Assessment plot

Assessment plot for  mercury in sediment at Sea of Hebrides


Metals data

Metals data for assessment of  mercury in sediment at Sea of Hebrides


Metals assessment

Metals assessment of  mercury in sediment at Sea of Hebrides


Related pages

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