Projects

CSEMP assessment of lead in biota at West Mersea Beach (Blackwater)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean116.2618.26-5.1310.26
linear216.5220.52-4.26 8.521.736 10.1877
smooth (df = 2)315.4422.58-2.72 5.443.084 10.0791
smooth (df = 3)410.7622.76 0.62-1.246.676 10.0098

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920176.0725.732-0.3397 0.2474-1.3730.1998
last 20 years199920176.0725.732-0.3397 0.2474-1.3730.1998

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 308.7 211.9-0.3761 0.1509-2.4920.9841
EC 308.71500.0 1.5810 0.150910.475<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in biota at West Mersea Beach (Blackwater)


Raw data with assessment

Raw data with assessment of  lead in biota at West Mersea Beach (Blackwater)


Assessment plot

Assessment plot for  lead in biota at West Mersea Beach (Blackwater)


Metals data

Metals data for assessment of  lead in biota at West Mersea Beach (Blackwater)


Metals assessment

Metals assessment of  lead in biota at West Mersea Beach (Blackwater)


Related pages

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