An automatic system for control of the air pollution in the industrialised area of Huelva has being developed by CIEMAT. This system is called "Sistema informatico para control y prevencion de la contaminacion atmosferica en Huelva" (SICAH). SICAH is a Visual C++ programme that runs under Windows 95/NT. SICAH includes a Geographic Information System (GIS) and runs Fortran numerical scientific codes including a mesoscale Lagrangian puff dispersion model called MELPUFF. SICAH has been designed to receive and automatically process the information on air quality, emission and meteorological networks in real-time and provide predictions of concentrations of SO2, PM10, SH2 and CO.
Keywords: air pollution modelling, air quality management, decision support system
There are many types of air quality monitors available, but which one is the best choice for measuring gaseous air pollutant concentrations? There are two classes of such air quality monitors: sampling monitors and in-situ monitors (“in-situ” = “in the original position”). Sampling monitors utilises a manifold through which the air to be analysed is pumped. A small air sample is then enclosed in a cell where its molecular content can be analysed. The analysis method varies depending on...
Cleves School in Weybridge, Surrey (UK) has used AQMesh to measure pollution at the primary school’s entrance. The project, led by Dr. Edward Salter over the school’s summer term, aimed to understand exposure of the children (aged 7-11) to dangerous pollutant gases, with particular interest in the levels of nitrogen dioxide (NO2) and ozone (O3).
Initial findings showed that levels of O3 exceeded 100µg/m3 on several occasions during the high temperatures in June, and a daily pattern of gas peaks...
Receptor Pathway
Sensitive Receptor Summary Report
Modelers can now flag discrete receptors as Sensitive, and AERMOD View will produce a Sensitive Receptor Summary Report which details concentrations at the flagged receptors. This is useful when needing to quickly find concentrations at specific receptors.
Tile Maps
Updates to Open Cycle Maps
The Open Cycle Maps server was updated to reflect the most up-todate server settings and map hosts.
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The photocatalytic degradation process has been recognized as a low-cost, environmentally friendly and sustainable technology for water and wastewater treatment. As a key carrier of the photocatalytic process, the semiconductor TiO2 has been used in many studies. Analysis and modelling of hydrodynamics in the three-phase flow system can provide useful information for process design, operation and optimization of the three-phase flow photocatalytic reactor, which requires research on the mixing and flow characterist...
Background
For decades, Advanced Air Technologies, Inc. has been the leader in air scrubber technology for abatement of Ethylene Oxide (EtO) emissions. In fact, AAT, Inc. was founded in 1987 on a unique dry scrubbing, chemi-sorption process for EtO. The result is a series of fixed bed “Safe-Cell II” dry scrubbers, consisting of the DR-490, DR-50, and DR-MAC-150. The DR-490 is the staple for commercial scale aeration exhaust, while the DR-50 is used on exhaust from small hospital sterilizers....
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