German workers and optical radiation Dr. Marc Wittlich COST Action TD1206 Bern, 07-08.04.2014
What is optical radiation? ionizing radiation electromagnetic fields optical radiation Image: Wikipedia 100 nm 1 mm UV-Strahlung, Dr. Marc Wittlich 08.04.14 Seite 2
Ultraviolet radiation Infrared radiation Image: Wikipedia UV-Strahlung, Dr. Marc Wittlich 08.04.14 Seite 3
Legislation on optical radiation Directive 89/391/EEC: introduction of measures to encourage improvements in the safety and health of workers at work Directive 2006/25/EC: exposure of workers artificial optical radiation Arbeitsschutzgesetz act on safety at work Optische Strahlenverordnung (OStrV) act on safety regarding work with artificial optical radiation Technical Specifications on work with artificial optical radiation Seite 4
Projects funded by the German Social Accident Insurance (DGUV) Skin tumors induced by natural UV radiation Development and evaluation of criteria to distinguish between occupational and non-occupational causation regarding Germany s new occupational disease: squamous cell carcinoma or multiple actinic keratoses of the skin caused by natural optical radiation and many dutys in prevention! GENESIS-UV, Dr. Marc Wittlich 08.04.14 Seite 5
Participating research centers PD Dr. J. Schulze Prof. Dr. D. Reinert Dr. M. Wittlich Prof. Dr. S. M. John DGUV FB 181 - Research Centers - Research Centers with medical examination and technical questionare exposure determination and development exposure determination Prof. Dr. Dr. T. Bieber Prof. Dr. M. Fartasch Prof. Dr. T. Brüning Prof. Dr. J. Schmitt Prof. Dr. A. Seidler Prof. Dr. A. Bauer P. Knuschke Prof. Dr. S. Letzel Prof. Dr. S. Grabbe Jena Prof. Dr. P. Elsner Prof. Dr. H. Drexler Prof. Dr. T. L. Diepgen UV-Strahlung, Dr. Marc Wittlich 08.04.14 Seite 6
Projects FB 170 and FB 181 funded by the DGUV FB 170: - medical instruments to assess light damage of the skin - light damage sum score - technical instrumentes to retrospectively assess exposure - development of questionnaire to investigate lifetime exposure FB 181: - case-control study to validate the instruments - examination of 2400 test persons - questionnaire on medical and technical aspects - measurement of exposure at workplaces GENESIS-UV, Dr. Marc Wittlich 08.04.14 Seite 7
Outdoor workers with solar exposure Seite 8
What do we measure? natural optical radiation The sun solar UV-radiation: 290 nm to 400 nm Seite 9
Long-term exposure measurements Why? Benefits of long-term measurements acquisition of individual exposure of employees averaging of undesirable individual behavior averaging of undesirable environmental influences Disadvantages of long-term measurements intensive supervision problems in data transfer and data storage high disturbance of test persons by technical equipment etc. often useful not before measurement of several months GENESIS-UV, Dr. Marc Wittlich 08.04.14 Seite 10
The solution Peripheral fully automated from IFA remote controlled exposure measurements with automatic data transfer via mobile service and minimal intervention of test persons Seite 11
How does GENESIS-UV work? Seite 12
Technical aspects The GENESIS-case metal case (waterproof) UV-A-sensor UV-B/C-sensor pause - switch USB 2.0 connector 124 g Seite 13
and the first challenge: Measurement campaign Exposure of workers Seite 14
Measurement campaign Exposure of workers 300 test persons per year (simultaneous) measurement start: 1. April measurement end: 31. October daily at work from 07:30 hrs to 17:30 hrs measurement interval: 1 data point per sec anamnestic questionnaire regarding occupational and non-occupational lifetime exposure GENESIS-UV, Dr. Marc Wittlich 08.04.14 Seite 15
Junk yard worker, Baden-Württemberg 1 st April 2 nd April 3 rd April 4 th April 2,54 SED 1,75 SED 1,93 SED 1,11 SED Dr. Marc Wittlich
Woodsman, Saxonia 1 st April 2 nd April 3 rd April 4 th April 1,1 SED 2,86 SED 0,95 SED 0,80 SED Dr. Marc Wittlich
Development of a Derivation of inclusive exposure in vehicles inclusive protection by clothing inclusive reflection by surfaces Validation of Wittlich formula for retrospective exposure determination HH bb /aa = f WT f MS f JZ f b f TZ Tage Stunden Zeitfaktoren f Lat f Höhe f Reflex geographische Faktoren Seite 18 f Körp f Schutz persönliche Faktoren HH bb /aa(rrrrrr)
what if: Measurement campaign Exposure of workers throughout Europe Seite 19
and also on sea routes! Seite 20
Protection against solar radiation Australia: Slip Slop Slap Seek Slide Slip on a shirt, Slop on the 30+ sunscreen, Slap on a hat, Seek shade or shelter, Slide on some sunnies (sun glasses) Source: Cancer Council South Australia Seite 21
Contact us: Institut für Arbeitsschutz der DGUV Alte Heerstraße 111 D - 53757 Sankt Augustin Dr. Marc Wittlich Head of unit F 4.4 Radiation Tel.: 02241 / 231 2862 Fax.: 02241 / 231 2231 Email: marc.wittlich@dguv.de Seite 22