Projects

CSEMP assessment of zinc in sediment at outer (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean116.5517.84-5.28 10.55
linear210.7313.19-1.36 2.73 7.824 10.0052
smooth (df = 2)3-5.44-1.28 7.72-15.4418.174 1<0.0001
smooth (df = 3)4-3.97 2.57 7.99-15.97 0.529 10.4668
smooth (df = 4)5-3.22 6.58 8.61-17.22 1.242 10.2651

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200020175.6884.866-0.8222 0.1474-5.577<0.0001
last 20 years200020175.6884.866-0.8222 0.1474-5.577<0.0001

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC129.8122.0-0.06199 0.11532-0.5380.7003
ERL129.8150.0 0.14462 0.11532 1.2540.1152

 


Raw data with supporting information

Raw data with supporting information for assessment of  zinc in sediment at outer (Firth of Clyde)


Raw data with assessment

Raw data with assessment of  zinc in sediment at outer (Firth of Clyde)


Assessment plot

Assessment plot for  zinc in sediment at outer (Firth of Clyde)


Metals data

Metals data for assessment of  zinc in sediment at outer (Firth of Clyde)


Metals assessment

Metals assessment of  zinc in sediment at outer (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