We describe a recently developed in vitro assay for the assessment of the cytotoxicity of gaseous materials. The method is based on the pollen tube growth (PTG) test suited to determine the cytotoxicity of non-gaseous, water-soluble substances (Kristen and Kappler, 1995). Instead of the conventional PTG test, we used a semi-automatic, computer-controlled multi-channel device for the injection o...

Electronic noses (E-nose) have gained popularity in various applications such as food inspection, cosmetics quality control [1], toxic vapor detection to counter terrorism, detection of Improvised Explosive Devices (IED), narcotics detection, etc. In the paper, we summarized our results on the application of Support Vector Machines (SVM) to gas detection and classification using E-nose. First, ...

The detection of hydrogen sulfide (H₂S) and ethanediamine, toxic gases that are emitted from industrial processes, is important for health and safety. An optical sensor, based on the absorption spectrum of tetrakis(4-nitrophenyl)porphyrin (TNPP) immobilized in a Nafion membrane (Nf) and deposited onto an optical waveguide glass slide, has been developed for the detection of these gases. Respons...

Safety plays a major role in today’s world and it is necessary that good safety systems are to be implemented in places of education and work. This work modifies the existing safety model installed in industries and this system also be used in homes and offices. The main objective of the work is designing microcontroller based toxic gas detecting and alerting system. The hazardous gases like LP...

There are many distinct differences (morphologic, physiologic, and mechanical) between the bird's lung-air-sac respiratory system and the mammalian bronchoalveolar lung. In this paper, we review the physiology of the avian respiratory system with attention to those mechanisms that may lead to significantly different results, relative to those in mammals, following exposure to toxic gases and ai...

Introduction The ability to monitor and detect various chemical gases is important to many applications. One example is environmental monitoring, such as determining the air quality inside a room or closed chamber and detecting the presence and concentration of toxic or otherwise dangerous gases that may come from spills and leaks [1]. Monitoring and determining the constituents of a sample gas...

The article presents and analyzes the results obtained from an experimental study of content toxic components in exhaust gases during operation a car engine with gasoline liquefied petroleum gas (LPG). was conducted laboratory conditions by loading driving wheels roller-type chassis dynamometer, corresponding to established movement constant speed on horizontal road section.

municipal solid wastes (msws) vary in terms of quality and quantity, especially their toxic content. the efficient and sound disposal of msws not only needs implementing an integrated management procedure, but also performing a conservative way to reduce the impacts on resources. in the present research, after characterization of msw streams and consideration of disposal methods practiced in si...