1 / 12

Notifications

Notifications. HSE Notification of intention to work with ionising radiation 28 days notice required irrnot@hse.gsi.gov.uk Risk assessment RPA Training Personal dosimeter. Limits of detection. Correlation with lab results.

melissa-becker
Download Presentation

Notifications

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Notifications • HSE • Notification of intention to work with ionising radiation • 28 days notice required • irrnot@hse.gsi.gov.uk • Risk assessment • RPA • Training • Personal dosimeter

  2. Limits of detection

  3. Correlation with lab results • Good correlation with traditional analysis for all heavy metals tested • Very close correlation with soil standard • Lead levels slightly lower with XRF

  4. Further unexpected results • Vegetable testing has shown no uptake of As despite levels SGV x 50 • Raised Pb in vegetable on a site with concentrations lower than former SGV

  5. Limitations of XRF • Not at present for very light elements • Limit of detection too high for Cd • Elemental analysis, not compounds • Sensitive to moisture content – dry soils with absorbent paper first • Sensitive to particle size – remove stones • Safety training required

  6. Advantages of XRF • Good correlation with traditional analysis • Extensive sampling possible in short time • High degree of confidence in delimiting area for remediation/hotspots • Screening method • Reduces extent of remediation • Huge saving in time • Huge saving in cost of remediation

More Related