Projects

CSEMP assessment of lead in biota at 11th Mile Post (Ribble)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-10.13-8.13 8.07-16.13
linear2 -9.39-5.39 8.69-17.391.252 10.2631
smooth (df = 2)3 -7.69-0.55 8.84-17.690.304 10.5815
smooth (df = 3)4-11.24 0.7611.62-23.245.555 10.0184

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200120176.4816.186-0.29511 0.25636-1.1510.2764
last 20 years200120176.4816.186-0.29511 0.25636-1.1510.2764

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 485.7 211.9-0.8295 0.1630-5.0880.9998
EC 485.71500.0 1.1276 0.1630 6.917<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in biota at 11th Mile Post (Ribble)


Raw data with assessment

Raw data with assessment of  lead in biota at 11th Mile Post (Ribble)


Assessment plot

Assessment plot for  lead in biota at 11th Mile Post (Ribble)


Metals data

Metals data for assessment of  lead in biota at 11th Mile Post (Ribble)


Metals assessment

Metals assessment of  lead in biota at 11th Mile Post (Ribble)


Related pages

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