A new device for the simulation of indoor air pollution sources

Article Abstract:

A new volatile organic compounds (VOC) vapor generation system has been developed by Italian researchers to provide a tool for indoor air pollution research. The system is based on a modified droplet ejector working on the principle of a piezoceramic ink-jet printer. In tests, the device demonstrated a very high flexibility in terms of number and choice of compounds to be evaporated, their relative concentrations, the total emission rate and indoor relevant values. The system's good emission constancy and high precision makes it suitable for numerous applications.

Comment:

Italy: New volatile organic compounds (VOC) vapor generation system is developed to provide tool for indoor air research

Italy, Product development, Other Measuring and Controlling Device Manufacturing, Air Pollution T&M Equip, Air pollution testing equipment, Article

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Aliphatic and aromatic hydrocarbons in particulate fallout of Alexandria, Egypt: sources and implications

Article Abstract:

Quantitative and qualitative analysis of particulate fallout from Alexandria, Egypt, showed aliphatic hydrocarbons in all the samples. The presence of the compounds were attributed to petrochemical contamination, higher plant wax and the widespread distribution of fossil fuels such as petroleum, coal and wood, which produce hydrocarbons as combustion products. Biomarkers resulting from multivariate statistical analysis and linear programming technique showed significant variation in the hydrocarbon data set, suggesting two major sources of the hydrocarbons.

Environmental aspects, Pollutants, Hydrocarbons, Alexandria, Egypt (City)

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Characterizing the sources of particulate lead in house dust by automated scanning electron microscopy

Article Abstract:

Road dust, paint and garden soil are important sources of particulate lead in household dust, according to a study that identified over 8300 separate lead sources. A scanning electron microscope was used to analyze lead content of particles collected from such sources as garden soils, roads and waste incinerators. The amount of lead from each source is dependent on particulate size.

Research, Dust

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