Hygienic assessment of soil heavy metal pollution in Ulaanbaatar city
- VernacularTitle: Улаанбаатар хотын хөрсний хүнд металлын бохирдлын эрүүл ахуйн үнэлгээ
- Author:
Myagmarjargal N
1
;
Altangerel B
1
;
Enkhnaran N
1
;
Erdenechimeg Kh
2
;
Purevdulam L
3
;
Nyamsuren L
1
Author Information
1. National Center for Public Health
2. National Agency for Meteorology and Environmental Monitoring of Mongolia
3. Ministry of Health
- Publication Type:Journal Article
- Keywords:
soil;
heavy metal;
pollution
- From:Mongolian Medical Sciences
2024;207(1):37-43
- CountryMongolia
- Language:Mongolian
-
Abstract:
Introduction:Total environment 24 % of all estimated global deaths are linked to the environment. As of 2022,
Ulaanbaatar has a population of 1,691,800, vehicles 435,725, thermal power plants 4, market and
shopping centers 111, factories 13,465, and 225 gas stations. Also, 1.5 million tons of waste are
generated annually, 1135.6 tons of coal are used, and environmental pollution is increasing year by
year. Therefore, it is necessary to investigate the heavy metal contamination of the soil of Ulaanbaatar
city and protect the health of the population.
Purpose:To determine heavy metals pollution in the soil of Ulaanbaatar city
Materials and Methods:We used descriptive research design in this study. Secondary data from Meteorological and Environmental Monitoring Department was used. The content of heavy metals such as lead (Pb), mercury (Hg), chromium (Cr), and cadmium (Cd)) in the soil was evaluated in comparison with the maximum permissible amount specified in the MNS 5850:2019 standard. Statistical analyzing was calculated using SPSS-25 software, and p<0.05 was considered statistically significant.
Results:The average concentration of heavy metals in the soil of residential areas of 9 districts of Ulaanbaatar
city is cadmium 0.43 mg/kg (min=0, max=26.6), mercury 0.22 mg/kg (min=0, max=4), chromium 11.2
mg/kg ( min=0, max=1609.6), lead is 24.4 mg/kg (min=0, max=257.2). Cadmium concentration in soil
Bagakhangai (25%), Baganuur (19.7%), Khan-Uul (18.9%), lead concentration in Nalaikh (8.3%),
Bayanzurkh (5.4%), Chingeltei (3.3), mercury concentration in Baganuur ( 24.7%), Khan-Uul (18.4%),
and chromium concentration in certain locations of Khan-Uul (4.7%) districts exceeded the standards,
respectively. The concentration of soil cadmium (21.2%) and lead (7.7%) near the technical market,
mercury concentration (26.3%) near the market and shopping center, and chromium concentration
(58.9%) near the central treatment plant exceeded the maximum permissible levels.
Conclusion :Cadmium and mercury pollution were mainly detected in the heavy metal pollution of the soil of
Ulaanbaatar city, and there is heavy metal pollution in certain locations of Baganuur and Khan-Uul
districts. Heavy metal pollution is caused by activities such as technical markets, auto repair shops,
markets, shopping centers, and treatment plants.
- Full text:2025060517432990772MMS-2024-207(1)-37-43.pdf
