Projects

CSEMP assessment of lead in biota at Balcary Point (Solway Firth)

Statistical analysis

Details

Media : Biota (Plaice liver)
Station : IrishSea_BalcaryPoint_fi01, Balcary Point (Solway Firth)
Determinand : Lead
Units : μg kg-1 wet weight
Data extraction : 20 July 2018

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean180.8083.37-37.4074.80
linear268.1573.48-30.0760.1514.652 10.0001
smooth (df = 2)370.0580.05-30.0260.05 0.098 10.7548
smooth (df = 3)470.6588.65-29.3258.65 1.400 10.2368

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200120135.3106.4561.14600.21185.4100.0006
last 20 years200120135.3106.4561.14600.21185.4100.0006

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 636.6 26.0-3.198 0.136-23.4871.0000
EC 636.61500.0 0.857 0.136 6.2950.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in biota at Balcary Point (Solway Firth)


Raw data with assessment

Raw data with assessment of  lead in biota at Balcary Point (Solway Firth)


Assessment plot

Assessment plot for  lead in biota at Balcary Point (Solway Firth)


Metals data

Metals data for assessment of  lead in biota at Balcary Point (Solway Firth)


Metals assessment

Metals assessment of  lead in biota at Balcary Point (Solway Firth)


Related pages

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