*Indoor Air Pollution DOI: http://dx.doi.org/10.5772/intechopen.110587*

the amount of light scattering via sampled air-containing particles. These devices are factory calibrated, contain own pump and storage. It can provide continuous data.

Generally, particulate matter (PM) has to be measured at the different locations inside the living house such as the kitchen, where most of the emission comes from fuels, living room, and outdoors for comparison. Measurement of PM should be:


The outdoor particulate matter has to be measured at the sampling location of height about 2 meters from the ground level, a minimum of 2 meters away from obstructions like the wall of the house, 10 meters from trees, 5 meters from the chimney, and 5 meters from the edge of the nearest traffic lane.

WHO set a standard for air quality monitoring for different pollutants, among which PM is the most significant. According to the organization, the standard provides the maximum and interim target values. Interim targets are proposed as incremental steps in the reduction of air pollution and are intended for use in areas where pollution is high 1] (**Table 1**).
