Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2015 Jul 8;9:517–531. doi: 10.1007/s11869-015-0358-z

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2015

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

PMC Copyright notice

Fig. 3 — Patterns of daily PM₁₀ concentrations (μg m⁻³) during a January 2009 (green) and b January 2010 (blue) averaged for urban (solid lines) and regional (dashed lines) background monitoring sites and at rural background EMEP site in Diabla Góra (black dashed lines). Colour light backgrounds indicate the range of PM₁₀ concentrations at urban background sites, colour frames—the period of PM episodes, while red solid lines—EU daily limit value for PM₁₀ (50 μg m⁻³)