Many residents of dust-intensive systems have problems with coarse dust. We specialize in sampling coarse dust. Whether wind direction-dependent measurement with the Windselect® or "Point of Source" measurement, we support you in planning the measurement. Whether coarse dust measurement or aerosol measurement, we have the right system.
Both systems are also available for rent and experience has shown that they are mainly used during construction work and legal disputes.
POPs escape during incineration of waste containing chlorine, from landfills or from metallurgical plants. Many of these sources do not have a measurement platform, so that direct measurement at the source is difficult.
The Windselect system enables convenient measurements in the vicinity of the system by comparing ambient values with the source values.
Oil and gas fields, especially fracking plants, emit dust, PAHs, mercury and arsenic. Excess gas is partially burned in gas flares or gas engines without filtering.
The Windselect system reliably monitors the content of these substances to protect neighbours.
Many industrial processes generate fine dust, which is spread partly from chimneys and partly diffusely. In the vicinity, the coarse dust is usually a problem for the neighbors, as it precipitates in the area.
The Windselect system measures fine and coarse dust as the sum of chimney emissions and diffuse sources. Wind direction-dependent sampling immediately recognizes the cause.
The Windselect quickly detects the source by measuring the differences in the ambient air. Sectors are easy to configure.
The wind directions are divided into 16 sectors, the frequency of each sector is added up during the measurement. The measured wind speeds are also divided into 6 classes. This gives you a quick overview of the measurement results. In addition these data are stored every 15 minutes on USB memory stick, to evaluate the results in MS Excel.
Sectors for background and source are assigned to the cartridges in the configuration. A threshold level is used for the 3rd cartridge. For example, the "Calm" cartridge is sampled below 2 m / s. Above this speed, "Sector 1" or "Sector 2" cartridges are allocated according to the configuration.
can be found in our current Windselect brochure as pdf
Examples for Windselect results:
Above: Display with data and wind direction sectors at Windselect
Above: Display cartridge configuration
Below: Impactor design is calibrated against reference material
Above: Compact coarse dust sampler
We offer replacement parts and refills for all our products, of course also for the Genius5 Windselect®. Please send your requests to email@example.com
The impactors of the Windselect system were calibrated against reference materials in the United Kingdom. The cutpoints were set in relation to the number of holes and the mean diameter of the holes. This created a modular system that can be adapted to all tasks.
The PM10 impactor also advantageously collects the fraction larger than 10 µm on a filter paper. PM1 and PM2.5 impactors can be easily adapted to the flow rate, the cutpoints correspond to a flow of 4.2 m3 / h with 400 boreholes, with a reduced number of boreholes it can also be 2.3 m3 / h or 1 m3 / h the dust will be collected.
The PM10 impactor for the separate collection of the fraction larger than 10 µm is now available as a compact unit with d = 47 mm for the fraction <10 µm, a pump and temperature-compensated gas meter. Practical for quickly reviewing complaints from residents.
Above: The Genius5 Windselect in 2021. System has been measuring since 2009 in the southern Italian city of Taranto, which has long suffered from harmful emissions of Ilva steelworks.