Air and soil contamination in developing countries exacerbates due to poor management of waste collection and serves as a morbidity and mortality factor. This study aimed to conduct an assessment of soil pollution level in Ulaanbaatar and establish а correlation between microbial contamination and registered occurrences of contagious diarrheal diseases among children (0-5 years old). This is a cross-sectional study conducted in Ulaanbaatar in June-September of 2016. Samples of soil and contagious diarrheal disease morbidity data in 0-5-year-old children were used. Samples were taken from the sites three times, in July, August, and September. The data analysis was done in the SPSS-21 program and relevant parametric and non-parametric tests were used. The highest level microorganisms were found in the samples taken from sites near major markets and then in the samples from ger areas. The analysis of the samples revealed that 111.78 microorganisms exceed the standard level 1.1 times in summer. The Escherichia coli (E.Coli) and Proteus also contaminated the ground water. All diarrhea occasions in Ulaanbaatar were analyzed by seasons and months, the prevalence was peaking in August. A correlation was found with the soil E.Coli titers and infectious diarrheal disease children under five years old morbidity. The number of microorganisms in soil tends to increase in summer. Diarrheal disease infections among children under five increase most in summer and autumn and correlate with soil contamination with pathogenic microorganisms.

Introduction: Blood donors are committed to social responsibility, saving lives and improving the health of others. The necessity for blood and blood products in Mongolia is getting higher and higher every year which probably is associated with high-mortality-rate diseases.Materials and Method: This is a cross section survey identified knowledge, attitude and practice of the population on voluntary non-remunerated blood donation by using pre-developed same questionnaire before and after IEC/BCC intervention among general population on blood donation. Data collection was conducted in 5 provinces, 1 soum, 6 districts of Ulaanbaatar City of Mongolia. Population of age of 18-60 years was randomly selected by the survey by using random sampling method. SPSS software version 21 was used for data analysis of the survey. Result:The survey covered in a total of 7633 (baseline, 2015-3852, follow up, 2019-3782) people and the respondent coverage rate was 100%.the majority of them were had higher education (40.8%, 3115), and completed secondary education (secondary and high) (28.9% 2204), khalkh (84.8%, 6472), married (63.1%, 4818), and single (28.7%, 2194).It has been defined that highly educated and female respondents were more knowledgeable than the rest of the group. There were not observed significantly differ on religion, and living location of the person. Knowledge is increased by growing the age of survey respondents. 6.3% of surveyed respondents are regardless of age group and gender had a misconception. Compared with the baseline survey, correct answer percentage level increased by 4.6-64.8% each age group and an average it was 21.8%. In young ages, the population was more likely to donate blood. Based on both survey finding, 82.2% of respondents who gave blood is doing it because they are like to help others and to save people's lives ‫א(‬ 2 =16.37, p<0.0001). In Conclusion:Maintaining public awareness and sustaining regular blood donor is an integral part of establishing a blood donor program. In this regard based on our survey finding evidencebased IEC/BCC campaign has effectively improve awareness general population on sustainable blood programing.