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The Knowledge Base for LEV

Assessment of Exposure to Chemical Agents in Welding Fume

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HSL Laboratories Research Report from 2000 (2000/15) which set out to re-evaluate the reliability of EH54 methods for assessing exposures to welding fume. The report concluded that while chemical composition of welding fume can be influenced by welding parameters, the variation was relatively small at <20%.  Voltage was the variable parameter which exerted the greatest…

ACGIH Manual of Recommended Practice for DESIGN: NEW 30th Edition!!

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NEW 2019 EDITION! NOW AVAILABLE! Now in its 30th Edition Since the 26th Edition, this industry standard LEV Manual has undergone several major changes and upgrades Additions include chapters on – “Organization and Evaluation of Systems”; “Metric Solutions and Tables”; and “Calculation Sheets and Methods”. This (2019) 30th Edition, incorporates changes in many of the…

Welding Fume IARC Monograph 118

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In February 2019 HSE announced that Welding Fume was to be considered a human carcinogen.  This has had a major impact across a wide range of industries and employers. Questions are arising as to what elements of the welding ‘fume’ are implicated and what control responses would be appropriate. This Monograph is the original document…

HSE Work Plan 2019-2020 – Asthmagems, Carcinogens & Respirable Crystalline Silica

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HSE have set our their Work Plan for the coming byears with particular focus on targeting sectors where carcinogens, asthmagens and RCS are regularly used, produced or process generated. They have stated that they will deal with the underlying causes of poor risk control i.e. failures in health and safety management arrangements. These include the…

HSE – Welding Fume – Changes in Enforcement

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In February 2019 HSE released a Press Note which advised of the new health warning status of welding fume.  The main points made were:- New scientific evidence that exposure to all welding fume, including mild steel welding fume, can cause lung cancer. Also limited evidence linked to kidney cancer. Now a change in HSE enforcement…

CoSHH Essentials: Control banding

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CoSHH Essentials: Controlling exposure to chemicals – a simple control banding approach Occupational hygienists and others colleagues use this CoSHH essentials control banding approach to identify suitable options for mitigating risks from substances hazardous to health. This approach is particularly useful where workplaces may hold a large variety of different hazardous substances.  The aim is…

HSE_Asthmagen? Critical assessments of the evidence for agents implicated in occupational asthma

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This HSE document runs through several agent groups and their individual compounds.  It assesses and discusses the evidence, to determine if the substances are Asthmagens based upon the EU Criteria. It is an aged document, first published in 1997 with revisions in 1998 & 2001.  Good reference document for LEV testers and designers.

HSE INDG 346 “Chromium and You”

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This HSE guide on working with Chromium was last updated in 2013. The guide discusses working with chromium and its inorganic compounds and how exposure may affect your health. This leaflet tells you about the possible health effects, the preventative measures your employer needs to apply, and the precautions you should take to protect your health….