IntroductionAround for the last 70 years, an annual average temperature in Mongolian territory has been increasedby 2.14°Ñ which is 3 times more rapid than the global average warming rate. Also, the number of heatwave days have been increased [1, 2].Heat wave day’s leads to heat related morbidity and mortality. Espesially, stroke [3-5], cardiovascular [3-13] and respiratory [3, 5, 10, 12] mortalities are prevelant. Cardiovascular mortality has been determinedas a leading cause of mortality in our population while it takes the 3rd place [14] as a cardiovascularmorbidity.As the city of Ulaanbaatar houses 46% of Mongolian population, heat effects on health in the area andits trend need to be assessed, analyzed and identifi ed.PurposeTo identify heat risk days to health of the population of Ulaanbaatar city between the years of 1985through 2015Materials and MethodUnder the requirements set to sample, heat risk days with temperatures above 21.10C or 700F refl ectedon weather forecasts broadcasted from 1985 through 2015 by the Information And Research InstituteOf Meteorology, Hydrology And Environment, Mongolia have been selected. The afore mentioneddata have been translated into the heat index of National Weather Service of USA and processed andconcluded [15] according to the special formula and tables.ResultsIt is shown that heat risk days for the health of population of the Ulaanbaatar city had been 201 from1985 through 1995, 385 from 1996 through 2005 and 373 from 2006 through 2015. The average heatrisk days per given year varied in numbers from 4 through 56 and trended to increase. The largest heatwave days in number happened in the year of 2010 which is 56.According to health impacts of heat risk days, we had 0-47 Cautions, 0-17 Extreme Cautions and 2Dangers in the each of 1999 and 2005 and 1 in 2007 whilst no Extreme Danger has not been recordedyet.Conclusions:1. The number of heat risk days in the area of Ulaanbaatar tends to increase2. The number of Caution and Extreme caution days of Ulaanbaatar is observed to increase. Increaseof “Danger” tagged days, happening of “Extreme” tagged days and heat intense will depend onclimate change.

This abstract is a brief summary of results of studies on climate change related potential health risks.Climate change is a phenomenon, which is resulted by a direct and indirect human-induced change inthe earth’s atmospheric composition during its natural course of variation.The main source of climate change is greenhouse gas emission in the atmosphere which is associatedwith human-related activities.One of the climate change’s effect is elevated atmospheric temperature or global warming which directlyaffects human health. There has been a direct link between a raise in the ambient temperature andcardiovascular morbidity cases sought medical assistances and increased cardiovascular mortality ratedetected. It is found to be that elderly; children and outdoor workers are susceptible to heat-stress duringhigh heats and heat waves. Also, media that, in terms of locations, tropical and sub-tropical countries arefound to be vulnerable to heat effects has pointed it out.Cardiovascular, respiratory and cerebrovascular diseases are commonly reported as the underlyingcause of death, because persons with these preexisting diseases are more susceptible to death duringheat waves and high temperature.Hypertensive, ischemic heart disease and stroke are prevalent contributors to cardiovascular mortality.Cardiovascular morbidity lines up in the 3rd place among the most common causes of the world humanmortality.Identifi cation of vulnerable groups during climate change is the most effective public health action whichis equally being critical in prevention. Therefore, initiate a public alert procedure on extreme heat eventssuch as high ambient temperature and consecutive heat wave days, as well as preventive measurestargeted on vulnerable groups are considered to be effective.

Introduction: Mongolia is one of the most vulnerable countries to climate change due to its geographical location, climate conditions, level of development and lifestyle of the population.
The “Impact of Climate Change on Drinking Water, Health and Adaptability” study report has shown that climate change is affecting the quality and composition of drinking water, drying up many rivers and lakes and reducing groundwater levels.
There was a strong positive correlation between precipitation and air temperature and dysentery, diarrhea and salmonellosis, while there was a strong negative correlation between precipitation, air temperature and viral hepatitis. Goal: The goal of the study was to reveal correlation between meteorology parameters and some intestinal infectious diseases and human health in Mongolia. Material and Methods: We evaluated climate and certain morbidity (intestinal infections) indicators for the last 15 years (2005-2019) using descriptive survey methods. The methodology of the survey has developed and discussed at the Scientific Council meeting of NCPH, 12th of Oct, 2020. The methodology of the survey has developed and discussed at Medical Ethics Reviews Committee of MOH on 23rd. of June, 2021. Results: On the other hand, the average air temperature has intensively risen for the last three decades since 1990 with the warmest average temperature between 2001-2010, whereas the coldest average temperature has been observed between 1951-1960. In 2005-2009, the prevalence of intestinal infections per 10.000 population was 0.8 cases of salmonellosis, 11.2 cases of dysentery, 0.2 cases of diarrhea, and 39.0 instances of hepatitis A. Throughout 2015 and 2019, the prevalence of salmonellosis fell by 0.1 per 10.000 population, dysentery by 2.9, diarrhea by 0.1, and hepatitis A by 0.1. Conclusion A seasonal trend in intestinal infections was observed (p<0.001). Strong positive correlation was found between high temperature and some intestinal infections (hepatitis А, dysentery, salmonellosis) respectively.