Sod
Sod, også kaldet lampesod, er et afsat mørkt pulver af uforbrændt brændselrester og består normalt af amorft carbon. Sod er hovedbestanddelen i røg fra forbrændingen af carbon-rige fossilt brændsel når oxygenmængden er for lav. Sod er normalt "klæbrigt", og akkumuleres i skorstene, biludstødninger.
Sod dannes f.eks. også af tændte stearinlys. Stearinlys sod indeholder bl.a. nanopartikler som fluorescerer under UV-lys. [1]
Se også
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Referencer
- ^ 15. sep 2007, Ing.dk: Sod er fyldt med fluorescerende nanopartikler (Webside ikke længere tilgængelig)
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Aerosol mod 2006.jpg
Aerosols are tiny particles, such as soot or dust, suspended in Earth’s atmosphere. In addition to their air quality impacts, aerosols can interfere with sunlight reaching the planet’s surface, which means they play a role in the climate. Remote-sensing scientists often talk about aerosols in terms of their optical depth, which indicates how much of the incoming sunlight aerosols prevent from reaching the Earth’s surface. The global aerosol patterns in 2006 were similar to previous years. High aerosol concentrations were observed over western and central Africa (a mixture of dust from the Sahara and smoke from agricultural fires), northern India (where urban and industrial pollution concentrates against the foothills of the Himalaya Mountains), and northeastern China (urban and industrial pollution). Aerosol optical depth appeared unusually high in 2006 over Indonesia, probably as a result of increased fire activity there. The image also shows the impact of fires in Russia’s boreal forest, which spread aerosols into the Arctic.
Aerosols are tiny particles, such as soot or dust, suspended in Earth’s atmosphere. In addition to their air quality impacts, aerosols can interfere with sunlight reaching the planet’s surface, which means they play a role in the climate. Remote-sensing scientists often talk about aerosols in terms of their optical depth, which indicates how much of the incoming sunlight aerosols prevent from reaching the Earth’s surface. The global aerosol patterns in 2006 were similar to previous years. High aerosol concentrations were observed over western and central Africa (a mixture of dust from the Sahara and smoke from agricultural fires), northern India (where urban and industrial pollution concentrates against the foothills of the Himalaya Mountains), and northeastern China (urban and industrial pollution). Aerosol optical depth appeared unusually high in 2006 over Indonesia, probably as a result of increased fire activity there. The image also shows the impact of fires in Russia’s boreal forest, which spread aerosols into the Arctic.