Health risk analysis as per radiation and chemical factors in a zone influenced by a nuclear legacy object in the north-western part of Russia

Rehabilitation programs for nuclear legacy objects in north-western regions in Russia involve decommissioning; a former coast technical support base belonging to the RF Navy and located on the Gremikha peninsula in Murmansk region is now being removed from service. At present spent nuclear fuel is being extracted from ship reactors with liquid-metal coolant and nuclear wastes that have been accumulated during active operations are being treated. The current activities at the site result in complex influence on the environment determined by both radiation and non-radiation contaminants. The present work focuses on examining a hygienic situation existing in residential areas located close to this nuclear legacy object. In general, radiation situation in residential areas is determined by technogenic contaminants, basically 137Cs and 90Sr radionuclides. Our research has revealed that at the moment their contents in the environmental objects correspond to background levels that are typical for the examined region. Chemical contamination detected in residential areas is characterized with elevated heavy metals contents (Cd, As, Pb, V, Zn, Cu etc.) in soils in urban settlements that are higher than background levels. We detected lead and zinc concentrations that were higher than MPC. Total soil contamination with heavy metals (Zc) is still «permissible» in most residential areas. Carcinogenic health risk for people living in the examined residential areas does not exceed 10-6 as per radiation and chemical factors. Research results allow assessing the current hygienic situation as normal and concluding that decommissioning of SZC «SevRAO» objects (Gremikha section) does not exert negative impacts on the environment and health of people living in residential areas located nearby. The obtained data give grounds for controlling activities when environmental monitoring is accomplished during works aimed at recovering contaminated areas where nuclear legacy objects are located.

Download Full-text

Assessment of ecological state of the Posyet Bay (the Sea of Japan) by heavy metals content in brown algae

Samara Journal of Science ◽

10.17816/snv201762118 ◽

2017 ◽

Vol 6 (2) ◽

pp. 91-95

Author(s):

Nadezhda Konstantinovna Khristoforova ◽

Anna Dmitrievna Kobzar

Keyword(s):

Heavy Metals ◽

Sea Of Japan ◽

Coastal Waters ◽

Atmospheric Transport ◽

The Sea Of Japan ◽

High Concentration ◽

The North ◽

Recreational Pressure ◽

North Western ◽

Sargassum Miyabei

The paper contains the study of heavy metals in three species - Sargassum miyabei , Sargassum pallidum , Cystoseira crassipes in the coastal waters of the Posyet Bay. The analysis of the spatial distribution of trace elements revealed the highest contents of zinc, copper and nickel in the Troitsa Bight, due to recreational pressure and a high concentration of nickel and cadmium in Sivuchya Bight that was caused by transboundary atmospheric transport. All of detected concentrations exceed natural background values for the North-Western part of the Sea of Japan. The authors show that there has been a distinct change in the environmental situation in the the Posyet Bay since 1998: the concentration of lead has sharply decreased, the content of zinc, copper and cadmium has decreased, it could be connected with influence reduction in the free economic zone, located on the Chinese side on the Tumannaya River.

Download Full-text

Fractionation analysis of some heavy metals in sediments of the north-western part of the Red Sea, Egypt

Chemistry and Ecology ◽

10.1080/02757540.2010.547488 ◽

2011 ◽

Vol 27 (5) ◽

pp. 427-443 ◽

Cited By ~ 14

Author(s):

Hoda H.H. Ahdy ◽

Doaa H. Youssef

Keyword(s):

Heavy Metals ◽

Red Sea ◽

The North ◽

Fractionation Analysis ◽

North Western

Download Full-text

Bioaccessibilities and health risk assessment of heavy metals in dust from the Guizhou-Guiyang urban zone, China

10.21203/rs.3.rs-868374/v1 ◽

2021 ◽

Author(s):

郁鑫杰 ◽

王济 ◽

蔡雄飞 ◽

张帅 ◽

李丁 ◽

...

Keyword(s):

Heavy Metals ◽

Risk Assessment ◽

Health Risk ◽

Health Risk Assessment ◽

Human Health Risk ◽

Inhalation Exposure ◽

Residential Areas ◽

Limit Values ◽

Intestinal Phase ◽

Exposure Pathways

Abstract To investigate the health risks of heavy metals in dust entering the human body from different exposure pathways. In this study, the old urban area of Guiyang was used as the study area to understand the heavy metals concentrations in surface dust, including recreational plazas, main streets, hospitals, residential areas, and schools in this city, and the bioaccessibility in the simulated lung phase and simulated gastrointestinal phase. The results showed that the concentrations of Cu, Pb, Zn, Cd, Ni, and Cr in the dust were higher than the background values, especially the Zn content exceeded the background value by 9.71 times. The bioaccessibility results indicated that the most soluble heavy metals in the simulated lung phase, simulated gastric phase, and simulated intestinal phase were Zn, Ni, and Cu, respectively, and the bioaccessibility of most heavy metals was significantly higher in the gastric phase than in the intestinal phase, and only Cu was higher in the intestinal phase than in the gastric phase. The linear results fit suggested that the total amount of heavy metals alone could not predict the human intake of heavy metals in the dust. Human health risk assessment based on bioaccessibility showed that children had higher non-carcinogenic and carcinogenic risks than adults for both hand-to-mouth ingestion and respiratory inhalation exposure pathways, but none of them exceeded the limit values.

Download Full-text

Assessment of risk to health caused by the exposure to mining waste in Durango, Mexico

Ingeniería Investigación y Tecnología ◽

10.22201/fi.25940732e.2021.22.3.023 ◽

2021 ◽

Vol 22 (3) ◽

pp. 1-9

Author(s):

Pedro Guadarrama Guzmán ◽

Georgina Fernández Villagómez ◽

María Teresa Alarcón Herrera

Keyword(s):

Heavy Metals ◽

Risk Assessment ◽

Spatial Analysis ◽

Health Risk ◽

Mining Waste ◽

Tailings Dam ◽

Residential Setting ◽

Metals And Metalloids ◽

The North ◽

Short Time

In order to determine the health risk derived from the presence of heavy metals on the residents of a town in the North of Mexico, 27 samples were taken from a tailings dam at a mine in "Cerro de Mercado". Among the various metals and metalloids found, antimony and chromium exceeded the permissible concentration values established by the Mexican legislation, so mining waste in that region was considered to be hazardous and harmful to health. The risk assessment was carried out using the Spatial Analysis and Decision Assistance software, selecting a recreational setting with a short time exposure, and a residential setting with long exposure, obtaining as a result, that the health of the residents nearby the mine will not be damaged by metals and metalloids exposure existing in the tailings.

Download Full-text

Heavy metals concentration in mangrove tissues and associated sediments and seawater from the north coast of Persian Gulf, Iran: Ecological and health risk assessment

Environmental Nanotechnology Monitoring & Management ◽

10.1016/j.enmm.2021.100456 ◽

2021 ◽

Vol 15 ◽

pp. 100456

Author(s):

Marzieh Rezaei ◽

Raheleh Kafaei ◽

Marzieh Mahmoodi ◽

Ali Mohammad Sanati ◽

Dariush Ranjbar Vakilabadi ◽

...

Keyword(s):

Heavy Metals ◽

Risk Assessment ◽

Health Risk ◽

Health Risk Assessment ◽

Persian Gulf ◽

North Coast ◽

The North

Download Full-text

Pollution Assessment and Health Risk Implication of Human Exposure to Heavy Metals in Road Dusts from Different Functional Areas in Jeddah, Saudi Arabia

10.20944/preprints201711.0152.v1 ◽

2017 ◽

Author(s):

Ibrahim I. Shabbaj ◽

Mansour A. Alghamdi ◽

Magdy Shamy ◽

Salwa K. Hassan ◽

Musaab M. Alsharif ◽

...

Keyword(s):

Heavy Metals ◽

Saudi Arabia ◽

Health Risk ◽

Human Exposure ◽

Human Health Risk ◽

Pollution Level ◽

Residential Areas ◽

Urban Road ◽

Functional Areas ◽

Road Dusts

Data dealing with the assessment of heavy metal pollution in road dusts in Jeddah, Saudi Arabia and its implication to human health risk of human exposure to heavy metals, are scarce. Road dusts were collected from five different functional areas (traffic areas TA, parking areas PA, residential areas RA, mixed residential commercial areas MCRA and suburban areas SA) in Jeddah and one in rural area (RUA) in Hada Al Sham. We aimed to measure the pollution levels of heavy metals and estimate their health risk of human exposure applying risk assessment models described by USEPA. Using geo-accumulation index (Igeo), the pollution level of heavy metals in urban road dusts was in the following order Cd > As > Pb > Zn > Cu > Ni > Cr > V > Mn > Co > Fe. Urban road dust was found to be moderately to heavily contaminated with As, Pb and Zn, and heavily to extremely contaminated with Cd. Calculation of enrichment factor (EF) revealed that heavy metals in TA had the highest values compared to that of the other functional areas. Cd, As, Pb, Zn and Cu were severely enriched, while Mn, V, Co, Ni and Cr were moderately enriched. Fe was consider as a natural element and consequently excluded. The concentrations of heavy metals in road dusts of functional areas were in the following order: TA > PA > MCRA > SA > RA > RUA. The study revealed that both children and adults in all studied areas having health quotient (HQ) < 1 are at negligible non-carcinogenic risk. The only exception was for children exposed to As in TA. They had an ingestion health quotient (HQing) 1.18 and a health index (HI) 1.19. The most prominent exposure route was ingestion. The cancer risk for children and adults from exposure to Pb, Cd, Co, Ni, and Cr was found to be negligible (< 1 x 10-6).

Download Full-text