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UFIPOLNET - Ultrafine Particles

Comparison pinhead to rock: Ultrafine particles to diameter of a hair

Figure: Comparison pinhead to rock: Ultrafine particles to diameter of a hair

Ultra fine particles are 1000-times smaller than the diameter of a human hair. They are smaller than 100 nanometer. Unthinkable small: If  a 2 meter rock would equal to the diameter of a hair the pinhead would equal to an ultrafine particle.

Particles in environmental aerosols are in the size range from one nanometer to 100 micrometer (µm = millionth part of one meter).  They can be put into specific size ranges dependent on their origin. Particles smaller than 10 µm are important for the human health.

Different sizes of particles in aerosols of the ambient air

Figure: Different sizes of particles in aerosols of the ambient air

Particles in environmental aerosols are in the size range from one nanometer to 100 micrometer (µm = millionth part of one meter).  They can be put into specific size ranges dependent on their origin. Particles smaller than 10 µm are important for the human health. Source: modified from O. Meckes/EOS/Agentur Focus

Figure: Diesel soot is one of the harmful substances to health, which are in ultrafine particles. (Photo: Ulrich Heinzmann)

Figure: Diesel soot is one of the harmful substances to health, which are in ultrafine particles. (Photo: Ulrich Heinzmann)

Composition of fine particles in Dresden, Schlesischer Platz near road traffic

Figure: Composition of fine particles in Dresden, Schlesischer Platz near road traffic

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Contact

Saxon State Agency for Environment, Agriculture and Geology (LfULG)

Dr. Gunter Löschau

Project-Information

Financed by European Community

This project was financed with the contribution of the LIFE financial Instrument of the European Community (LIFE04 ENV/DE/000054).