ABSTRACT
Machinery Repair Plant (MRP) of Erdenet Mining Corporation (EMC) is the subject of this research in order to determine the labor conditions and illnesses of the employees at the metallurgical plant.MRP’s function is to smelting and processing metals for milling, producing, repairing or restoring metal structures of machineries or equipment. MRP employs 639 employees for 185 working places and 568 equals to 88.6% of them have been working n the abnormal condition which reveals that the plant has hard conditions of labor.The research was performed using retrospective research method in fact modeling; and made an evaluation on measurements of 2008-2014, performed by the occupational health laboratory covering 185 working places at MRP; occupational diseases occurred to 639 employees; and perspective status of temporarily invalidity. Electronic logging data base for Occupational Diseases and temporary invalidity at the EMC was used for categorization and conclusion according to the International category of 10 diseases. Research results of labor conditions: As to measurements made between 2008 and 2014 on the working places at MRP, dust concentration reached up to 18mg/m3 and that was excessive than the corresponding average by 9 times of measurements. Results from occupational disease survey: 137 employees have been affected by the occupational diseases at the MRP for the last 27 years. 39, which is a large amount, out of 137 were affected by bronchadenitis caused by dust. Results from temporary invalidity survey: 2293 occurrences were recorded in relation to temporary invalidity at MRP between 2008 and 2012 and the percentage of injuries or toxicities and certain disorders caused by outsources is 15.6%. Reviewing the survey results, common occurrences are bronchadenitis caused by dust, spinal neural inflammations and chronic inflammation caused by dust toxicities, and the large percentages are occupied by temporary invalidity, injuries or toxicities and certain disorders caused by outsources, respiratory organ and system disorders. It shows that those of diseases and disorders are dependent to the working place environments and labor conditions.
ABSTRACT
Background:One of the soil pollution assessment criterions is bacterial contamination. Soil bacterial contamination has negative impact on water, air, food stuff, human health as well as soil biological activity and soil purification process. The soil of populated area is contaminated by animal and human solid and liquid wastes, dead plants and industrial and household drainage water. Soil becomes a source harboring and transmitting pathogens due to the fact that pathogens are transmitted to the soil by the wastes of patients, human and animal corpses (dead bodies) died of infectious diseases, plants and water. Since it is difficult to detect pathogens from outside environment, the level of soil bacterial contamination is determined by the way of detecting medically important group of bacteria such as E.coli, Cl.perfringens, Proteus and thermophilic bacteria. Aim:Our survey objective is to determine level of soil contamination of Ulaanbaatar, Erdenet, Darkhan city’s by using microbiological method. Results and Discussion:1.Microbiological characteristics of soil bacterial quantitative assessment of the cities surveyed in Ulaanbaatar, all soil samples, Darkhan city, 72.2% and Erdenet, 54.5% belong to higher contamination levels. In 2009, Ulaanbaatar the result of E.coli titer 0.004, anaerobic titer 0,001 and thermophilic bacterial number 28,8 x10 c/g revealed.2.Compared to the average Ulaanbaatar, Darkhan city colon E.coli average titer of 1.25 times and anaerobic-titer 2 times and thermophilic bacteria was less than 1.6 times the number of a city for these parameters 1.5 times and 2 times and 1.5 timesis low.