1.Biological Monitoring.
Yeungnam University Journal of Medicine 1995;12(1):21-31
No abstract available.
Environmental Monitoring*
6.Application of software program in the ecological analysis of medicinal plants of Dao ethnic minority at BaVi commune
Pharmaceutical Journal 2001;305(9):11-13
DECODA is a ecological model. Functions of DECODA include: research, analysis and management of population and community. Master file of DECODA contains species variables, community data and sample variables. DECODA includes 3 modules: MDS, DECORANA, TWINSPAN. Applying DECODA in analyzing medicinal plant (MP) gardens of Yao ethnicity in TWINSPAN classifies 56 MP gardens into 6 groups based on characteristics of MP: I, II, III, IV groups include MPs that fit with high sunlight, heavy soil, medium moisture and poor humus soil. V, VI groups are in opposition to the above groups. DECORANA classifies the MP gardens into 7 groups based on characteristics of gardens: I, II, III, IV groups have a favourable conditions for growing MP and the owner of the gardens pay more attention in growing MP. V, VI groups are in opposition to the above groups.
Environmental Monitoring
;
Plants, Medicinal
7.Indoor ²²²Rn levels and effective dose estimation of academic staff in İzmir, Turkey.
Türkan ALKAN ; Ozlem KARADENIZ
Biomedical and Environmental Sciences 2014;27(4):259-267
OBJECTIVETo investigate the annual effective doses from indoor radon received by academic staff in the Faculty building.
METHODSMeasurements of indoor radon concentrations were performed in the Arts and Sciences Faculty of Dokuz Eylül University for two surveys of about 1 month duration respectively using the SSNTD (Solid State Nuclear Track Detectors) method with LR115 detectors. Time integrated measurements comprised different locations inside the faculty building: classrooms, toilets, canteen and offices. Homes of academic staff were also tested for radon.
RESULTSThe arithmetic mean radon concentration is 161 Bq m-3 with a range between 40 and 335 Bq m-3 in the Faculty. Six offices and three classrooms have a radon concentration above 200 Bq m-3. The results show that the radon concentration in classrooms is generally higher than in offices. Based on the measured indoor radon data, the annual effective doses received by staff in the Faculty were estimated to range from 0.79 to 4.27 mSv, according to UNSCEAR methodology. The annual effective doses received by staff ranged from 0.78 to 4.20 mSv in homes. On average, the Faculty contributed 56% to the annual effective dose.
CONCLUSIONReported values for radon concentrations and corresponding doses are within the ICRP recommended limits for workplaces.
Air Pollution, Indoor ; analysis ; Environmental Monitoring ; Faculty ; Housing ; statistics & numerical data ; Humans ; Radiation Dosage ; Radon ; analysis ; Risk Assessment ; Turkey ; Universities ; statistics & numerical data
8.Assessment of exposure to extremely low frequency magnetic field emitted from monitors.
Chang-chun CHEN ; Xin-yu HONG ; Guang-zu SHEN ; Xi-peng JIN
Chinese Journal of Preventive Medicine 2004;38(1):14-17
OBJECTIVESTo investigate intensity of extremely low frequency magnetic field (ELFMF) emitted from cathode-ray tubes (CRT) of monitors in various directions and to find ways to avoid its influence.
METHODSTwo hundred CRT monitors and 10 monitors with liquid-crystal display (LCD) were selected. Their ELFMF was detected for three times in front of the monitor at an interval of every 5 cm from 0 cm to 50 cm, as well as at various directions from the monitor.
RESULTSIntensity of ELFMF significantly attenuated at regular operating position (30 - 40 cm) from 0 cm to 50 cm in front of both 38 cm and 43 cm CRT monitors (P < 0.05). Intensity exceeded 0.4 microT both within 15 cm and 10 cm in front of 38 cm and 43 cm monitors. The highest intensity was found at the upright top position of both kinds of monitors, 9.54 microT for 38 cm monitor and 6.38 microT for 43 cm one, respectively.
CONCLUSIONSIt is suggested to keep away from monitor screen as possible when operating a computer, to reduce unnecessary operation in front of a monitor screen, and to shorten operating time. To avoid more hazards from interactive interference between computers, it is necessary to increase distance between monitors.
Computers ; Electromagnetic Fields ; adverse effects ; Environmental Exposure ; adverse effects ; Equipment Safety ; Humans ; Occupational Exposure ; adverse effects ; Radiation Monitoring ; methods ; Risk Assessment
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