Projects

CSEMP assessment of lead in sediment at Billingham-Bamlett's Bight (Tees)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean150.8052.60-22.4044.80
linear252.5456.09-22.2744.540.265 10.6069
smooth (df = 2)354.0960.34-22.0444.090.450 10.5022
smooth (df = 3)455.8666.15-21.9343.860.224 10.6361

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920136.0786.3220.24360.47180.5160.6159
last 20 years199920136.0786.3220.24360.47180.5160.6159

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC556.7 38.0-2.6845 0.2964-9.0561.0000
ERL556.7 47.0-2.4719 0.2964-8.3381.0000

 


Raw data with supporting information

Raw data with supporting information for assessment of  lead in sediment at Billingham-Bamlett


Raw data with assessment

Raw data with assessment of  lead in sediment at Billingham-Bamlett


Assessment plot

Assessment plot for  lead in sediment at Billingham-Bamlett


Metals data

Metals data for assessment of  lead in sediment at Billingham-Bamlett


Metals assessment

Metals assessment of  lead in sediment at Billingham-Bamlett


Related pages

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