Heavy metals pollution levels and children health risk assessment of Yerevan kindergartens soils

Tepanosyan, Gevorg; Maghakyan, Nairuhi; Sahakyan, Lilit; Saghatelyan, Armen

doi:10.1016/j.ecoenv.2017.04.013

Cited by 179 publications

(54 citation statements)

References 17 publications

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“…In this respect, a special emphasis is placed on children since their organisms and immune system are still immature. Another fact to explain the sensitivity of children is that for them is more likely to come into contact with soils/soil-derived materials and that due to low stature they inhale topsoil weatheringinduced contaminants more intensively than adults (Mielke 2011;Kumpiene and Brännvall 2011;Tepanosyan et al 2017a). Also, it needs to take into consideration so-called main venues, which for children commonly are kindergartens (Sun et al 2013;Zheng et al 2015), for adultscertain functional urban areas (Jing et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Mercury soil contents and associated ecological and health risks in kindergartens and functional areas of the city of Vanadzor (Armenia)

Sahakyan

Tepanosyan

Melkonyan

et al. 2019

GES

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Mercury is a widespread environmental pollutant becoming a crucial health concern as a result of natural and anthropogenic releases. Understanding Hg distribution pattern between different functional urban areas is needed for urban pollution control and health impact assessment. Therefore, in this paper urban soil Hg spatial distribution, pollution level evaluation, and mercury-induced health risks were studied, for different urban functional areas (355 samples) and kindergartens (18 samples) of Vanadzor. Geospatial mapping and the geostatistical analysis suggest that Hg concentration in the entire area of Vanadzor and its kindergartens has a natural origin, besides a certain anthropogenic impact on some urban sites. According to geoaccumulation index (Igeo), uncontaminated or moderately contaminated levels were detected only in 2 samples from industrial area and 5 samples from residential area, the remaining samples were classified as uncontaminated. In all kindergartens and the 22.15 sq.km of the city (270 samples) are characterized by low level potential ecological risk, whereas 3.85 sq.km (85 samples) correspond to moderate and for 1 sampling site high level of potential ecological risk. A non-carcinogenic health risk assessed for children and adults indicates health hazards neither in Vanadzor entire areas nor in kindergartens. The hazard index (HI) in each urban functional area is less than allowable level (HI <1) for children and adults. Obtained results are indicative and offer the ability for better management of urban soil and urban planning in terms of Hg pollution regulation in different functional areas.

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Section: Introductionmentioning

confidence: 99%

Mercury soil contents and associated ecological and health risks in kindergartens and functional areas of the city of Vanadzor (Armenia)

Sahakyan

Tepanosyan

Melkonyan

et al. 2019

GES

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“…Human exposure to heavy metals occurs through consumption of contaminated water or food 4,5 , or through respiration by inhaling atmospheric particles enriched with heavy metals. Accumulation of the heavy metals in body even at trace levels causes neurological disorders, hormone imbalance, cardiovascular failure, kidney diseases, infertility, hair loss, endocrine disorders, respiratory and digestive problems, and cancer [6][7][8] . A range of industrial activities discharge their wastewaters into the rivers, which then deposit and enrich in the river sediments.…”

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confidence: 99%

Pollution and contamination assessment of heavy metals in the sediments of Jazmurian playa in southeast Iran

Shirani

Afzali

Jahan

et al. 2020

Sci Rep

110

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Jazmurian playa was an ephemeral lake with a large catchment in southeast iran, which dried up over the last 10 years as a result of prolonged drought. As the lake was recipient of incoming industrial water with trace metals deposited to the sediment, the dust is the cause of environmental concern of the region and requires evaluation and better management. The aim of this study was to evaluate the environmental and ecological pollution of Jazmurian playa. Hence, 24 collected surface sedimentary samples were analyzed with ICP-OES. The environmental pollution indices including degree of contamination (cd), geoaccumulation index (igeo), enrichment factor (ef), pollution load index (PLI) and potential ecological risk (PER) were determined. The study revealed moderately to strongly pollution levels of pb, ni and Al, while Dy, pb, Y, Yb, Sm, te, U, cu, Mn, Sc represented moderate pollution. The EF values indicated four sites were highly enriched with Dy, Pb and Ni. The PER results showed high risk for four sites and considerable risk for others. Cluster analysis illustrated interconnection between the contaminants and the sites with major pollution at six sites. Obviously, climate change has considerable complex environmental impacts through transformation of local water and sediment pollution problem.

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“…11 Some heavy metals have a strong affinity for sulfur when bind via thiol group (-SH) in the body of human beings. 12 These metals usually bind with enzymes using sulfur-metal bonds which are responsible for controlling the speed of metabolic reactions. 8 These -SH bonds hinder the functioning of the enzymes involved resulting in health deterioration of affected humans which sometimes becomes lethal in prolong situations.…”

Section: Heavy Metals In Biological Systemsmentioning

confidence: 99%

Heavy metal pollution – A mini review

Hadia-e-Fatima¹,

Ahmed²

2018

JBMOA

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Soil contamination due to human oriented activities is an emerging issue in the present world. There are several pollutants from different industries which are released in the nearby soils. Among these pollutants, heavy metals constitute non-biodegradable, toxic and persistent pollutants which adversely affect ecological niche of all life forms, including humans. The detrimental effects of these heavy metals on living organisms are attributable to a number of cellular and biochemical processes in living organisms. In humans, these are known to cause various physiological disorders of respiratory, renal and gastrointestinal system. The biotoxicity of heavy metals depends on their concentration, chemical forms and bioavailability.

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Heavy metals pollution levels and children health risk assessment of Yerevan kindergartens soils

Cited by 179 publications

References 17 publications

Mercury soil contents and associated ecological and health risks in kindergartens and functional areas of the city of Vanadzor (Armenia)

Mercury soil contents and associated ecological and health risks in kindergartens and functional areas of the city of Vanadzor (Armenia)

Pollution and contamination assessment of heavy metals in the sediments of Jazmurian playa in southeast Iran

Heavy metal pollution – A mini review

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