DESTINATION

Monitor and evaluation of occupational exposure gives information about workplace hazards and helps find solutions to protect people.

The Government of the Republic of Lithuania resolution constitutes that the “State Register of sources of ionizing radiation and occupational exposure” permanently observes and controls professional irradiance.

Purpose of Register of ocuupational exposure (hereinafter – Register) is to collect, register, treat and systematise, store and give data directed by law, about workers, who work with sources of ionizing radiation, professional irradiance.

LEGAL BASE

Constitutor and trimmer of State Registers of sources of ionizing radiation and occupational exposure details The Republic of Lithuania’s Law on Radiation Protection.

The Government of the Republic of Lithuania resolution No 460 and resolution No 651 on 25th May of 1999 “On the Establishment of the State Register of Radiation Sources and Exposure to Workers and Approval of its Statute modification” (adopted on 9th may of 2007) regulate Registers sources, sources handling and security and is in correlation with another registers.

The Order No V-675 of the Minister of Health of 24th August 2009 On the Approval of the Procedure of Submission Data about Sources of Ionizing Radiation and Data about Radiation Workers to the State Register of Sources of Ionizing Radiation and Exposure of Workers defines the order of the account and control of the sources. The order instructs the license possessor/holder to prepare paperwork and send it to the register authorities. There must be:
• Report about workers, who just start work with sources or finish work with them, in 10 day terms (11 attachment).

Lithuanian Hygiene Standard HN 83:2004 “Radiation Protection and Safety of outside Workers” adopted by the Order No. V-889 on 9th December 2004 by the Minister of Health Care establishes the requirements for radiation protection and safety for outside workers, who work in a controlled zone, to protect them from potential detrimental ionizing radiation and fix worker sending companies, worker engaged companies and outside worker positions and responsibility, establishes states supervising and control in this area.

CONTACTS

For more information, please contact Radiation protection centre Division of Radiation Protection Supervision and Control Subdivision of state register of sources of ionizing radiation and exposure doses of workers chief specialists

Diana Nikitina
d.nikitinaATrsc.lt

Valdemar Jankovskij
v.jankovskijATrsc.lt

 

 

Last update 2009-09-17

DATA OF REGISTER

Data on workers occupational exposure is accumulated since 1992, data on occupational exposure at Ignalina nuclear power plant (hereinafter – Ignalina NPP) – since 1983. Data about workers doses amounts change in Register is given in 1st picture.

 

 

Figure 2. Average doses of workers of personal health care institutions (medical doctors) in 2008

 

Summarize all data, we affirm, that we doesn’t register any occupational exposure higher then they are approved in standards. Data about occupational exposure average for some professions in 2008 is given in Table 1.

Table1. Data about occupational exposure average for some professions in 2008

Type of practice, profession	Number of workers	Average individual dose in the annum, mSv
Medical institution	2835
Doctors	1253
X-ray diagnostics	345	0,26
Stomatology	425	0,16
Tomography	91	0,16
Interventional radiology and cardiology	69	1,34
Nuclear medicine	11	0,29
Radiation therapy	49	0,15
Veterinary	8	0,34
Other	254	0,36
Nurses	1390
X-ray diagnostics	822	0,22
Stomatology	137	0,17
Tomography	109	0,17
Interventional radiology and cardiology	101	0,98
Nuclear medicine	32	0,84
Radiation therapy	61	0,25
Other	128	0,43
Medical support staff	192
X-ray diagnostics	95	0,29
Interventional radiology and cardiology	18	0,68
Nuclear medicine	7	0,19
Radiation therapy	13	0,22
Other staff, overall	59	0,15
Industrial objects	130	0,71
Radiography	103	0,76
Other	27	0,19
Education and research institution	108	0,1
Other	135	0,22
Overall	3208

 

In year 2008 the registry added 6796 values of effective exposure doses, 2315 of them was Ignalina NPP workers average doses, 1271 outside workers who work in Ignalina NPP and guests average doses. Workers who were detached to other institutions got outside worker passes. Pass have information about exposure doses for last five years. In the year 2008 - 106 passes were issued.

Ignalina NPP workers average annual doses value is 0,95 mSv, outside workers and guests – 0,77 mSv. This number of workers according to range of annual exposure doses in 2008 is given in Table 2.

Table 2. Workers quantity according to range of annual exposure doses in 2008