Blood Levels of Polycyclic Aromatic Hydrocarbons in Children of Lucknow, India

Polycyclic aromatic hydrocarbons (PAHs) are compounds with two or more fused benzene rings produced by incomplete combustion of organic substances involved in natural and anthropogenic processes. Children are exposed to these compounds through inhalation, dietary ingestion, and, also, soil at the pl...

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Veröffentlicht in:Archives of environmental contamination and toxicology 2008-02, Vol.54 (2), p.348-354
Hauptverfasser: Singh, Vipul K, Patel, Devendra K, Ram, S, Mathur, N, Siddiqui, M. K. J, Behari, Jai Raj
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container_issue 2
container_start_page 348
container_title Archives of environmental contamination and toxicology
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creator Singh, Vipul K
Patel, Devendra K
Ram, S
Mathur, N
Siddiqui, M. K. J
Behari, Jai Raj
description Polycyclic aromatic hydrocarbons (PAHs) are compounds with two or more fused benzene rings produced by incomplete combustion of organic substances involved in natural and anthropogenic processes. Children are exposed to these compounds through inhalation, dietary ingestion, and, also, soil at the playground. It has been well established that PAHs have carcinogenic, mutagenic, and teratogenic effects. Considering possible health risks due to PAHs exposure among children, the present study was carried out in collaboration with the Pediatrics Department, King George's Medical University (KGMU), Lucknow, to determine its exposure in children by estimating blood PAHs levels. Due to the variable composition of PAHs mixtures emitted from different environmental sources, any single compound or metabolite may not be representative of all exposure conditions. For these reasons, the measurement of blood PAHs levels as a possible biomarker, especially of the EPA (Environmental Protection Agency, USA) priority list, has been proposed. Acenaphthylene, anthracene, phenanthrene, fluoranthene, naphthalene, pyrene, benzo(b)fluoranthene, benzo(k)fluoranthene, and benzo(a)pyrene were determined by HPLC-FD/UV. On the basis of the individual compound, the median (50th percentile) of naphthalene (19 ppb) was highest, however, benzo(a)pyrene (4.0 ppb) level was found to be lowest among all detected PAHs. The median level of total noncarcinogenic PAHs (113.55 ppb) was higher than the total carcinogenic PAHs (32.35 ppb) in blood samples of children. A significant correlation was found between period of time spent in the surrounding breathing zone of the cooking place and total noncarcinogenic PAHs (p < 0.05), while the blood carcinogenic PAHs level in children was found to be associated with lower status of their families (p < 0.05). It is speculated that there may be chances of health hazards through exposure to PAHs, those not yet declared hazardous and present at higher concentrations in the Indian environment. Further study with a larger sample size and accompanying environmental data is desired to validate the findings of this pilot study and strengthen the database of PAHs exposure in India.
doi_str_mv 10.1007/s00244-007-9015-3
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Due to the variable composition of PAHs mixtures emitted from different environmental sources, any single compound or metabolite may not be representative of all exposure conditions. For these reasons, the measurement of blood PAHs levels as a possible biomarker, especially of the EPA (Environmental Protection Agency, USA) priority list, has been proposed. Acenaphthylene, anthracene, phenanthrene, fluoranthene, naphthalene, pyrene, benzo(b)fluoranthene, benzo(k)fluoranthene, and benzo(a)pyrene were determined by HPLC-FD/UV. On the basis of the individual compound, the median (50th percentile) of naphthalene (19 ppb) was highest, however, benzo(a)pyrene (4.0 ppb) level was found to be lowest among all detected PAHs. The median level of total noncarcinogenic PAHs (113.55 ppb) was higher than the total carcinogenic PAHs (32.35 ppb) in blood samples of children. 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K. J</creatorcontrib><creatorcontrib>Behari, Jai Raj</creatorcontrib><title>Blood Levels of Polycyclic Aromatic Hydrocarbons in Children of Lucknow, India</title><title>Archives of environmental contamination and toxicology</title><addtitle>Arch Environ Contam Toxicol</addtitle><addtitle>Arch Environ Contam Toxicol</addtitle><description>Polycyclic aromatic hydrocarbons (PAHs) are compounds with two or more fused benzene rings produced by incomplete combustion of organic substances involved in natural and anthropogenic processes. Children are exposed to these compounds through inhalation, dietary ingestion, and, also, soil at the playground. It has been well established that PAHs have carcinogenic, mutagenic, and teratogenic effects. Considering possible health risks due to PAHs exposure among children, the present study was carried out in collaboration with the Pediatrics Department, King George's Medical University (KGMU), Lucknow, to determine its exposure in children by estimating blood PAHs levels. Due to the variable composition of PAHs mixtures emitted from different environmental sources, any single compound or metabolite may not be representative of all exposure conditions. For these reasons, the measurement of blood PAHs levels as a possible biomarker, especially of the EPA (Environmental Protection Agency, USA) priority list, has been proposed. Acenaphthylene, anthracene, phenanthrene, fluoranthene, naphthalene, pyrene, benzo(b)fluoranthene, benzo(k)fluoranthene, and benzo(a)pyrene were determined by HPLC-FD/UV. On the basis of the individual compound, the median (50th percentile) of naphthalene (19 ppb) was highest, however, benzo(a)pyrene (4.0 ppb) level was found to be lowest among all detected PAHs. 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The median level of total noncarcinogenic PAHs (113.55 ppb) was higher than the total carcinogenic PAHs (32.35 ppb) in blood samples of children. A significant correlation was found between period of time spent in the surrounding breathing zone of the cooking place and total noncarcinogenic PAHs (p &lt; 0.05), while the blood carcinogenic PAHs level in children was found to be associated with lower status of their families (p &lt; 0.05). It is speculated that there may be chances of health hazards through exposure to PAHs, those not yet declared hazardous and present at higher concentrations in the Indian environment. Further study with a larger sample size and accompanying environmental data is desired to validate the findings of this pilot study and strengthen the database of PAHs exposure in India.</abstract><cop>New York</cop><pub>New York : Springer-Verlag</pub><pmid>17763887</pmid><doi>10.1007/s00244-007-9015-3</doi><tpages>7</tpages></addata></record>
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subjects Animal, plant and microbial ecology
Anthracene
Anthropogenic factors
Applied ecology
Benzene
Biological and medical sciences
Blood
Carcinogens
Chemical contaminants
Child
Child, Preschool
children
Earth and Environmental Science
Ecotoxicology
Ecotoxicology, biological effects of pollution
Environment
Environmental Chemistry
Environmental Health
Environmental Monitoring
Environmental Pollutants - blood
Environmental Pollutants - chemistry
Environmental protection
Exposure
Female
Fundamental and applied biological sciences. Psychology
General aspects
Health hazards
Health risks
Humans
India
Ingestion
Inhalation
Liquid chromatography
Male
Metabolites
Molecular Weight
Monitoring/Environmental Analysis
Naphthalene
Pediatrics
Phenanthrene
Pollution
Polycyclic aromatic hydrocarbons
Polycyclic Aromatic Hydrocarbons - blood
Polycyclic Aromatic Hydrocarbons - chemistry
Pyrene
Research centers
Soil Science & Conservation
Studies
Toxicology
title Blood Levels of Polycyclic Aromatic Hydrocarbons in Children of Lucknow, India
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