Search results for "Particulate material"
showing 3 items of 3 documents
Preliminary results about the breath of passive smokers and vapers based on the use of portable air monitoring devices
2016
Abstract Preliminary studies were made on the effect of both, classical smoking and electronic cigarettes (ECs) vaping, based on the quality of the indoor air and the breath of passive smokers. Portable air monitoring devices were used to evaluate carbon monoxide (CO), carbon dioxide (CO2), particulate materials (PM), formaldehyde and volatile organic compounds (VOCs) in indoor air and breath of active and passive smokers and vapers. As preliminary results, it can be observed that the major part of PMs liberated in classical smoking and ECs vaping correspond to the lowest size, which is the most dangerous for human health. However, the number of smallest PMs formed during vaping is around 5…
Pharmaceuticals in settleable particulate material in urban and non-urban waters
2011
Abstract Wastewater treatment plants (WWTP) are important sources of settleable particulate material (SPM), heading to sediments with natural suspended solids. To date, there is little information about the fate of pharmaceuticals in sediment systems. In this study, the objective was to determine if pharmaceuticals are detected in SPM at locations near WWTPs or even in rural areas, thus being susceptible for sedimentation. SPM samples were collected from 10 sites in Finland, grouped as reference, rural and wastewater effluent sites. SPM collectors were placed about 35 cm above bottom for about 2 months during summer. After extraction, a set of 17 pharmaceuticals was analyzed. Several pharma…
Uptake of Bead-Adsorbed Versus Soluble Antigen by Bone Marrow Derived Dendritic Cells Triggers Their Activation and Increases Their Antigen Presentat…
1995
The property to internalize particles has for long time been ascribed primarily to macrophages. DC in contrast were considered generally as phagocytosis negative. Fully mature DC which can be isolated from various tissues of the body do indeed not take up particulate material; however immature DC which arise in differentiating bone marrow cultures do exhibit phagocytic capacity1. Consistent with their immature phenotype epidermal Langerhans cells were also described to possess phagocytic potential2.