downstream particle number concentration for particles of diameter di; and

upstream particle number concentration for particles of diameter di

The mean particle concentration reduction (fr

Here, the particle concentration should preferably not exceed 1,000 particles per cubic metre.

The sample has a higher concentration of the electrically charged particles than the concentration in the source solution.

Particulate concentration is calculated by comparing the amount of carbon particulate with the measured amount of sampled gas passed through the filter.

Number of Particles per Cubic Metre by Micrometre Size

How can I measure the particle concentration in the air?

The invention further provides an electrochemical sensor for determining a charged particle concentration in an analyte.

It has the same concentration of particles as your blood.

According to the present invention, the concentration of particles (2) is 90-98 vol% of the finished composition.

Since 2010, the concentration of particle matters in the air has increased by 10%.

The voltage change component is evaluated to determine particle concentration.

(3) the opacity or the particle concentration in the gases emitted into the atmosphere.

Consequently, with respect to the multiple fluids, the water particle concentration and particle diameter of sprayed water can be uniformalized without increasing of the mixing ratio of air quantity.