Long-term exposure to elemental constituents of particulate matter and cardiovascular mortality in 19 European cohorts: Results from the ESCAPE and TRANSPHORM projects

Meng Wang*, Rob Beelen, Massimo Stafoggia, Ole Raaschou-Nielsen, Zorana Jovanovic Andersen, Barbara Hoffmann, Paul Fischer, Danny Houthuijs, Mark Nieuwenhuijsen, Gudrun Weinmayr, Paolo Vineis, Wei W. Xun, Konstantina Dimakopoulou, Evangelia Samoli, Tiina Laatikainen, Timo Lanki, Anu W. Turunen, Bente Oftedal, Per Schwarze, Geir AamodtJohanna Penell, Ulf De Faire, Michal Korek, Karin Leander, Goran Pershagen, Nancy L. Pedersen, Claes-Goran Ostenson, Laura Fratiglioni, Kirsten Thorup Eriksen, Mette Sorensen, Anne Tjonneland, Bas Bueno-de-Mesquita, Marloes Eeftens, Michiel L. Bots, Kees Meliefste, Ursula Kraemer, Joachim Heinrich, Dorothea Sugiri, Timothy Key, Kees de Hoogh, Kathrin Wolf, Annette Peters, Josef Cyrys, Andrea Jaensch, Hans Concin, Gabriele Nagel, Ming-Yi Tsai, Harish Phuleria, Alex Ineichen, Nino Kuenzli, Nicole Probst-Hensch, Emmanuel Schaffner, Alice Vilier, Francoise Clavel-Chapelon, Christophe Declerq, Fulvio Ricceri, Carlotta Sacerdote, Alessandro Marcon, Claudia Galassi, Enrica Migliore, Andrea Ranzi, Giulia Cesaroni, Chiara Badaloni, Francesco Forastiere, Michail Katsoulis, Antonia Trichopoulou, Menno Keuken, Aleksandra Jedynska, Ingeborg M. Kooter, Jaakko Kukkonen, Ranjeet S. Sokhi, Bert Brunekreef, Klea Katsouyanni, Gerard Hoek

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    Abstract

    Background: Associations between long-term exposure to ambient particulate matter (PM) and cardiovascular (CVD) mortality have been widely recognized. However, health effects of long-term exposure to constituents of PM on total CVD mortality have been explored in a single study only.

    Aims: The aim of this study was to examine the association of PM composition with cardiovascular mortality.

    Methods: We used data from 19 European ongoing cohorts within the framework of the ESCAPE (European Study of Cohorts for Air Pollution Effects) and TRANSPHORM (Transport related Air Pollution and Health impacts Integrated Methodologies for Assessing Particulate Matter) projects. Residential annual average exposure to elemental constituents within particle matter smaller than 2.5 and 10 pm (PM2.5 and PM10) was estimated using Land Use Regression models. Eight elements representing major sources were selected a priori (copper, iron, potassium, nickel, sulfur, silicon, vanadium and zinc). Cohort-specific analyses were conducted using Cox proportional hazards models with a standardized protocol. Random-effects metaanalysis was used to calculate combined effect estimates.

    Results: The total population consisted of 322,291 participants, with 9545 CVD deaths. We found no statistically significant associations between any of the elemental constituents in PM2.5 or PM10 and CVD mortality in the pooled analysis. Most of the hazard ratios (HRs) were close to unity, e.g. for PM10 Fe the combined HR was 0.96 (0.84-1.09). Elevated combined HRs were found for PM2.5 Si (1.17, 95% Cl: 0.93-1.47), and S in PM2.5 (1.08,95% Cl: 0.95-1.22) and PM10 (1.09,95% Cl: 0.90-132).

    Conclusion: In a joint analysis of 19 European cohorts, we found no statistically significant association between long-term exposure to 8 elemental constituents of particles and total cardiovascular mortality. (C) 2014 Elsevier Ltd. All rights reserved.

    Original languageEnglish
    Pages (from-to)97-106
    Number of pages10
    JournalEnvironment international
    Volume66
    DOIs
    Publication statusPublished - May 2014

    Funding

    ~ The research leading to these results has received funding from the European Community's Seventh Framework Program (FP7/2007-2011): ESCAPE 3 (grant agreement number: 211250) and TRANSPHORM (ENV.2009.12.2.1). SAPALDIA received support in mortality record linkage from the Swiss National Cohort Study, grant numbers: Periode 1.7.2006-30.6.2011:108806, Periode 1.7.2011-30.6.2014: 134273. The KORA research platform and the MONICA Augsburg studies were initiated and financed by the Helmholtz Zentrum Munchen, German Research Center for Environmental Health, which is funded by the German Federal Ministry of Education and Research and by the State of Bavaria. We thank Marjan Tewis, Marieke Oldenwening, Marta Cirach, Audrey de Nazelle, Marianne Rutschi, Gregor Fessler, Alwin Muxel, Bernhard Anwander, Paolo Crosignani, Jon Wickmann, Daniela Raffaele, Marco Gilardetti, Thomas Kuhlbusch, Ulrich Quass,

    Keywords

    • Long-term exposure
    • Particulate matter
    • Constituents
    • Cardiovascular mortality
    • ESCAPE
    • TRANSPHORM
    • USE REGRESSION-MODELS
    • EXTENDED FOLLOW-UP
    • HARVARD 6 CITIES
    • AIR-POLLUTION
    • CHEMICAL-COMPOSITION
    • TIME-SERIES
    • MOUSE LUNG
    • NO2
    • DISEASE
    • PARTICLES

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