Projects

CSEMP assessment of arsenic in sediment at inner (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean144.1845.38-19.0938.18
linear239.4941.77-15.7431.496.690 10.0097
smooth (df = 2)332.8536.69-11.4222.858.643 10.0033
smooth (df = 3)434.8140.81-11.4122.810.033 10.8557
smooth (df = 4)533.4142.32 -9.7119.413.398 10.0653

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920172.70083.05770.35700.10033.5580.0029
last 20 years199920172.70083.05770.35700.10033.5580.0029

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC21.27925.0000.161140.083591.9280.0365

 


Raw data with supporting information

Raw data with supporting information for assessment of  arsenic in sediment at inner (Firth of Clyde)


Raw data with assessment

Raw data with assessment of  arsenic in sediment at inner (Firth of Clyde)


Assessment plot

Assessment plot for  arsenic in sediment at inner (Firth of Clyde)


Metals data

Metals data for assessment of  arsenic in sediment at inner (Firth of Clyde)


Metals assessment

Metals assessment of  arsenic in sediment at inner (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