| Title: | Cumulative risk assessment of chemical exposures in urban environments |
| Author(s): | Ragas AM; Oldenkamp R; Preeker NL; Wernicke J; Schlink U; |
| Address: | "Department of Environmental Science, Institute for Wetland and Water Research, Radboud University Nijmegen, 6500 GL Nijmegen, The Netherlands. A.Ragas@science.ru.nl" |
| DOI: | 10.1016/j.envint.2011.02.015 |
| ISSN/ISBN: | 1873-6750 (Electronic) 0160-4120 (Linking) |
| Abstract: | "We performed a cumulative risk assessment for people living in a hypothetical urban environment, called Urbania. The main aims of the study were to demonstrate how a cumulative risk assessment for a middle-sized European city can be performed and to identify the bottlenecks in terms of data availability and knowledge gaps. The assessment focused on five air pollutants (i.e., PM(1)(0), benzene, toluene, nonane and naphthalene) and six food pesticides (i.e., acetamiprid, carbendazim, chlorpyrifos, diazinon, imidacloprid and permethrin). Exposure predictions showed that PM(1)(0), benzene and naphthalene exposure frequently exceeded the standards, and that the indoor environment contributed more than the outdoor environment. Effect predictions showed that mixture and interaction effects were generally limited. However, model calculations indicated potential synergistic effects between naphthalene and benzene and between chlorpyrifos, diazinon and toluene. PM(1)(0) dominated the health impact expressed in Disability Adjusted Life Years (DALYs). We conclude that measures to reduce the health impact of environmental pollution should focus on the improvement of indoor air quality and the reduction of PM(1)(0) emissions. Cumulative risk assessment can be improved by (1) the development of person-oriented exposure models that can simulate the cumulative exposure history of individuals, (2) a better mechanistic understanding of the effects of cumulative stressors, and (3) the development of instruments to prioritize stressors for inclusion in cumulative risk assessments" |
| Keywords: | "Adolescent Adult Aged Aged, 80 and over Alkanes/analysis Benzene/analysis Benzimidazoles/analysis Carbamates/analysis Child Child, Preschool Chlorpyrifos/analysis Cities Diazinon/analysis Environmental Exposure/*statistics & numerical data Environmental M;" |
| Notes: | "MedlineRagas, Ad M J Oldenkamp, R Preeker, N L Wernicke, J Schlink, U eng Research Support, Non-U.S. Gov't Netherlands 2011/04/01 Environ Int. 2011 Jul; 37(5):872-81. doi: 10.1016/j.envint.2011.02.015. Epub 2011 Mar 29" |
