Sulfur dioxide is as antagonist of greenhouse gases less effective than previously assumed. It forms sulfate aerosol particles in the air, which reflect sunlight, and as so-called cloud condensation nuclei influence the chemical processes within clouds. Therefore, sulfate aerosol particles help to cool the earth, making them an important factor in climate models.

Tarkat ilman mittaukset ovat paljastaneet, että helsinkiläiset hengittävät aika ajoin kofeiinia sisältäviä pienhiukkasia. Hiukkaset ovat lähtöisin Meiran kahvipaahtimolta Sturenkadulta. Kofeiinimolekyylit jäivät haaviin Ilmatieteen laitoksen Kumpulan mittausasemalla.

Lue Markku Rajalan uusin blogikirjoitus Tekniikka ja Talous -lehden blogista.

Mortality from all causes was higher among individuals with greater exposure to PM_2.5 in survivors of hospital admission for ACS in England and Wales. Despite higher exposure to PM_2.5 among those from more deprived areas, such exposure was a minor contribution to the socioeconomic inequalities in prognosis following ACS.

Exposure to traffic pollution and noise can in the long run lead to atherosclerosis, according to a German study which for the first time explored the links between the two. 

Kansainvälinen ilmakehätutkijoiden ilmalaiva on on saapunut Suomeen. Ilmalaivan vierailu on osa yhteiseurooppalaista Pegasos-tutkimushanketta, jossa selvitetään muun muassa ilmakehään muodostuvien pienhiukkasten vaikutusta ilmastonmuutokseen ja ilmanlaatuun.

New Current Intelligence Bulletin issued by CDC’s National Institute for Occupational Safety and Health (NIOSH) reports the results of research in which various types of carbon nanotubes/carbon nanofibers can cause pulmonary fibrosis, inflammatory effects, and granulomas in laboratory animals exposed to them by inhalation.

 After years of scientific uncertainty and speculation, researchers at the University of North Carolina at Chapel Hill show exactly how trees help create one of society's predominant environmental and health concerns: air pollution.

 New research from the University of Southampton has found that working or travelling on an underground railway for a sustained period of time could have health implications.