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Cancer Risk Assessm...
Cancer Risk Assessment of Airborne PAHs Based on in Vitro Mixture Potency Factors
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- Dreij, Kristian (author)
- Karolinska Institutet
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- Mattsson, Åse (author)
- Karolinska Institutet
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Jarvis, Ian W. H. (author)
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- Lim, Hwanmi (author)
- Stockholms universitet,Institutionen för miljövetenskap och analytisk kemi
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Hurkmans, Jennie (author)
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- Gustafsson, Johan (author)
- Stockholms universitet,Institutionen för miljövetenskap och analytisk kemi
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- Bergvall, Christoffer (author)
- Stockholms universitet,Institutionen för miljövetenskap och analytisk kemi
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- Westerholm, Roger (author)
- Stockholms universitet,Institutionen för miljövetenskap och analytisk kemi
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- Johansson, Christer (author)
- Stockholms universitet,Institutionen för miljövetenskap och analytisk kemi,Environment and Health Administration, Sweden
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- Stenius, Ulla (author)
- Karolinska Institutet
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(creator_code:org_t)
- 2017-07-11
- 2017
- English.
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In: Environmental Science and Technology. - : American Chemical Society (ACS). - 0013-936X .- 1520-5851. ; 51:15, s. 8805-8814
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Complex mixtures of polycyclic aromatic hydrocarbons (PAHs) are common environmental pollutants associated with adverse human health effects including cancer. However, the risk of exposure to mixtures is difficult to estimate, and risk assessment by whole mixture potency evaluations has been suggested. To facilitate this, reliable in vitro based testing systems are necessary. Here, we investigated if activation of DNA damage signaling in vitro could be an endpoint for developing whole mixture potency factors (MPFs) for airborne PAHs. Activation of DNA damage signaling was assessed by phosphorylation of Chid and H2AX using Western blotting. To validate the in vitro approach, potency factors were determined for seven individual PAHs which were in very good agreement with established potency factors based on cancer data in vivo. Applying the method using Stockholm air PAH samples indicated MPFs with orders of magnitude higher carcinogenic potency than predicted by established in vivo-based potency factors. Applying the MPFs in cancer risk assessment suggested that 45.4 (6% of all) cancer cases per year in Stockholm are due to airborne PAHs. Applying established models resulted in <1 cancer case per year, which is far from expected levels. We conclude that our in vitro based approach for establishing MPFs could be a novel method to assess whole mixture samples of airborne PAHs to improve health risk assessment.
Subject headings
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
Keyword
- Analytical Chemistry
- analytisk kemi
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Dreij, Kristian
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Mattsson, Åse
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Jarvis, Ian W. H ...
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Lim, Hwanmi
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Hurkmans, Jennie
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Gustafsson, Joha ...
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show more...
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Bergvall, Christ ...
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Westerholm, Roge ...
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Johansson, Chris ...
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Stenius, Ulla
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Analytical Chemi ...
- Articles in the publication
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Environmental Sc ...
- By the university
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Stockholm University
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Karolinska Institutet