Andrew Rumsby and Graeme Proffitt Pattle ... - WasteMINZ...Microsoft PowerPoint - 1000 XRF...
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PATTLE DELAMORE PARTNERS LTD solutions for your environment PATTLE DELAMORE PARTNERS LTD solutions for your environment Andrew Rumsby and Graeme Proffitt Pattle Delamore Partners Ltd Auckland WasteMINZ Conference 2015 Rotorua PATTLE DELAMORE PARTNERS LTD solutions for your environment
Transcript of Andrew Rumsby and Graeme Proffitt Pattle ... - WasteMINZ...Microsoft PowerPoint - 1000 XRF...
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
Andrew Rumsby and Graeme ProffittPattle Delamore Partners LtdAuckland
WasteMINZ Conference 2015Rotorua
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
Ideal Samples
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
Results from Unprepared Samples
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
Results for Unprepared Samples
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
Types of Samples to be Avoided
• Samples which a high percentage of gravels in them (need to be sieved)
• Very wet samples should be avoided
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
Indicative Detection Limits of FPIndicative Detection Limits of FPIndicative Detection Limits of FPIndicative Detection Limits of FP----XRF (using 60 seconds per filter)XRF (using 60 seconds per filter)XRF (using 60 seconds per filter)XRF (using 60 seconds per filter)
ElementHuman health
or environmental
concern?
Typical FP-XRF detection limit
(mg/kg)Ease of comparison to guidelines/standards
Antimony, (Sb) Yes 20
Questionable depending on guideline adopted for rural lifestyle/residential (10%
produce ingestion), laboratory validation testing
recommended.
Arsenic, (As) Yes 7
Questionable for rural lifestyle /residential (10%
produce ingestion), laboratory validation testing
recommended.
Cadmium, (Cd) Yes 12
Not valid for rural lifestyle/residential (10%
produce ingestion) investigations. Valid for high density residential land-use,
commercial/industrial
Copper, (Cu) Yes 15 Usually valid
Lead, (Pb) Yes 8 Usually valid
Zinc, (Zn) Yes 12 Usually valid
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
Some Elements which XRF are not so good for Human Health Investigations (Residential)
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
Cadmium Interference
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
Case Study
• 1.5 ha rural site
• Used for organically growing flowers
• Owner says no pesticides use on land
• Preliminary testing indicates elevated As and Pb concentrations
• 45 houses will be developed on-site.
• CLMG#5 says 25 samples should be collected
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
Insert Title – In Slide Figure
Case Study
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
Take Home Points
• XRF is a good tool for some elements
• Prepared samples results give good agreement with lab samples results
• Unprepared samples may not meet the 0.9 r2 criteria
• But by understand the limits of uncertainty in XRF data you can target lab analysis to samples which need it.
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
Acknowledgments
PDP would like to thank Graham Corban of Hill Labs for the kind permission to use data from his
study into the “Effects of Sample Preparation on the Accuracy of
Total Recoverable Heavy Metals”
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
P A T T L E D E L A M O R E P A R T N E R S L T Dsolutions for your environment
Questions?
solutions for your environment PATTLE DELAMORE PARTNERS LTD
©PDP Oct-15
