Sentences with phrase «measure ultrafine»
Not exact matches
Some experts believe ultrafine particles, which are a thousand times smaller than the particles the DEC measured, pose more danger to residents with asthma and other respiratory illnesses.
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In order to evaluate the assessment of the low emission zone, the scientists determined the reduction of tailpipe emissions of black carbon and ultrafine particles at a street - site by taking into account the concentrations measured in the urban background.
The puniest bits of soot in diesel exhaust, known as ultrafines, measure on the nanoscale.