• [2012-07-11] Sahara dust, sea spray and fires contribute to bad air quality
  + http://www.trust.org/alertnet/news/sand-salt-volcanoes-add-to-eu-clean-air-challenge + http://www.euractiv.com/climate-environment/eu-faces-clean-air-test-sand-sal-news-513930
  in Tietoukka Monitor > 2012 > 2012-28 with air_pollution europe particulate_matter
• [2013-05-21] Climate change and wildfire
  + http://www.sciencedirect.com/science/article/pii/S037811271300114X
  in Tietoukka Monitor > 2013 > 2013-21 with black_carbon carbon_emissions cloud_formation particulate_matter precipitation radiative_forcing smoke wildfires

particulate_matter from all users