Contamination is particularly dangerous for drugs used for injection or for the treatment of open wounds and also intended for prolonged use and/or receiving high doses. To prevent cross contamination, taking into account the conditions of production the following activities should be carried out: • The organization of separate production (industrial premises and sites) for products such as penicillins, live vaccines, biological preparations containing living microorganisms, and some other biological products or the use of closed circuit of production • Installation of air locks, exhaust systems and providing pressure differentials • Reducing the risk of contamination caused by recirculation or
Azrines are widely used as antibacterial and cytotoxic. Some azrines azrines compounds have various functional groups.1-13 Azirine compounds and their biological activities: Azirines are three membered heterocyclic unsaturated compounds containing a nitrogen atom and related to the saturated analogue aziridine. They are highly reactive yet have reported in a few natural products such as Dysidazirine. There are two
Aluminum hydroxide is amphoteric which means that it reacts easily both with strong acids and strong bases. An example is the reaction of Aluminum hydroxide with sulfuric acid when dialuminum trisulfate is formed. This compound is used in many different ways and is added to products that we use in our everyday lives. This compound is used as a water purifier, is put in cosmetics, medicines and last but not least plays an important role in the photographic development processes. In medicine Aluminum hydroxide is used for the production of vaccines for some of the most important illnesses part of which are hepatitis a, hepatitis B, tetanus and many other.
Styrene Styrene is a toxic chemical that goes by many names such as ; Vinylbenzene , Ethenylbenzene , Phenyl Ethylene, Benzene and etc. Styrene is a colorless liquid that has an unsaturated ring that contains alternating double and single bonds ( Aromatic odor ). *This is an example of an aromatic compound known as Benzene, as shown above the unsaturated ring contains alternating double and single bonds. Styrene is a very important component that is used in making everyday products that you and I use e.g components for cars, trucks, trains, and etc. Styrene helps make very reliable, strong, flexible products that we use everyday and everywhere.
The first type of pollution is air pollution. According to United States Environmental Protection Agency (as cited in Vallero, 2008, p. 3), air pollution is the presence of contaminants or pollutant substances in the air that interfere with human health or welfare, or produce other harmful environmental effects. Air pollution always consists of a whole range of pollutants, gaseous and particular alike. Common pollutants which are major public health concern include particulate mass and some gases like ozone, nitrogen oxides, sulphur oxide, and carbon monoxide. The sources of these pollutants include household combustion devices, motor vehicles, industrial facilities, forest fires and pesticides.
Dioxins are primarily by-products or residues from thermal industrial processes (combustion) that involve chlorine, but they can also occur during natural phenomena such as volcanic eruptions or forest fires. They are undesirable byproducts in a large number of manufacturing processes, such as melting, chlorine bleaching of pulp, and the production of certain herbicides and pesticides. In terms of emissions, it is considered that most of the dioxin released into the environment comes from uncontrolled waste incinerators (solid waste and hospital waste), which are the biggest culprits, with incomplete combustion. There are also large stocks of used industrial oils throughout the world whose longterm preservation and elimination of these materials
Combination of antioxidants is useful for the treatment of toxicity from cadmium in intestine. INTRODUCTION: Cadmium is very toxic heavy metal and have adverse effect on human body it disturb enzymatic activities of cell , tissues and metabolic processes of human body(Irfan et al., 2013).it was first discovered in 1817. It is noncorrosive so it is use in electroplating and galvanizing.it use
Physical and chemical properties: Aflatoxins are potent toxic , carcinogenic, mutagenic, immunosuppressive agents, produced as secondary metabolites by the fungus Aspergillus flavus and A. parasiticus on variety of food products. Among 18 different types of aflatoxins identified, major members are • Aflatoxin B1, B2, G1 and G2. • Aflatoxin B1 (AFB1) is normally predominant in amount in cultures as well as in food products.Pure AFB1 is pale-white to yellow crystalline, odorless solid. SOLUBILITY: Aflatoxins are soluble in methanol,chloroform, actone, acetonitrile. A. flavus typically produces AFB1and AFB2, A. parasiticus produce AFG1and AFG2 as well as AFB1and AFB2 Four other aflatoxins M1, M2, B2A, G2A which may be produced in minor amounts were subsequently isolated from cultures of A. flavus and A.
Conversely, concrete is one of the most powerful tools for proper flood control, by means of damming, diversion, and deflection of flood waters, mud flows, and the Concrete dust released by building demolition and natural disasters can be a major source of dangerous air pollution. The presence of some substances in concrete, including useful and unwanted additives, can cause health concerns due to toxicity and radioactivity.
Kinetic investigation of TiO2 mediated photocatalytic degradation of Para nitrophenol Introduction In the manufacture of dyes, medicines and pesticides, nitrophenols are widely used as chemical intermediates. These are stable, carcinogenic and toxic. Para nitrophenol(PNP) is one of them and the presence of it in the environment is harmful for the living being. The technique heterogeneous photocatalysis belonging to advanced oxidation process have proved to be one of the most effective treatment methods for the removal of pollutants from wastewater. In this process strong oxidizing agent hydroxyl radicals are produced which oxidizes a wide variety of organic pollutants into innocuous end products such as carbon dioxide, water and mineral acids………