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. 2015 Apr 13;12(4):4047–4059. doi: 10.3390/ijerph120404047

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© 2015 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).

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Associations between adult emergency hospital visits and indicators for PM₁₀ over air quality guideline value due to (A) any source, (B) volcanic ash, (C) dust storms, (D) other sources. The effect estimates are shown unadjusted (left) and adjusted for PM₁₀, NO₂ and H₂S (right).

Associations between adult emergency hospital visits and indicators for PM₁₀ over air quality guideline value due to (A) any source, (B) volcanic ash, (C) dust storms, (D) other sources. The effect estimates are shown unadjusted (left) and adjusted for PM₁₀, NO₂ and H₂S (right).