occupational exposure on people are more related to their environment. Water supply provides large amounts of Calcium, Magnesium, Iron, Manganese and copper to the hair. Other influences include, diet, air pollution and metabolic imbalances [33]. Transition metals on hair can be internal and external. Copper and few other elements are reliable indicators of consumption through diet [34] but Iron and calcium are obtained by external influences. Therefore, iron and calcium are more readily said to be thrown off
Zinc is necessary for normal functioning of cell including protein synthesis, carbohydrate metabolism, cell Growth and cell division(8). However, whether Zn centralization in air is over 15 mg/m , 3 “metal fume fever” may result; which reasons fever, depression, malaise, cough, vomiting, salivation and headache. Cadmium replaces Zn, in many enzymes. Therefore, higher sum of Zn is needed to overcome toxic impacts for cadmium (9). Iron insufficiency is
atmosphere. b) Global warming is due to the aerosol. c) The size of the aerosol is small so it deposited in our lungs. d) Medical complication is due to aerosol. e) Aerosol effects on the climate change like direct and indirect effects. f) It effects on metals, nutrients, and organics like acidification. CHEMICAL COMPOSITION There are two types of particles which have the bimodal nature due to the size number distribution of atmospheric particles suggests at least two distinct mechanism of formation and
CHAPTER – II REVIEW OF LITERATURE The Indian gems and jewellery have passed through different phases, and have been influenced by different religious and cultural streams. The rich tradition craft is still relevant in the Indian household, and in many communities the use of craft is for artistic pursuits and as a source of occupation. Review of literature is the most simple and fruitful basis of formulating the research problems precisely. For this purpose the research has to review the works
III. Review of related literature 1. Solar system Our solar system consists of an average star we call the Sun, the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. It includes the satellites of the planets, numerous comets, asteroids, and meteoroids, also the interplanetary medium. According to scientist Pluto is not considered a planet anymore.The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma, with internal convective
CHAPTER # 1: LITERATURE REVIEW Gardnerj et al (1956) investigated citric acid production by mutants of Aspergillus niger. The strain of Aspergillus niger was improved by X-rays and ultraviolet irradiations and found that as compared to wild, the mutated strain give more yield of citric acid. They concluded that 80 % of the sugar fermented was obtained in aerated culture, whereas only 21 % was obtained with the parent strain. Banik et al
Project 2 1.4 Structure of Report 2 Chapter 2 Literature Review 4 2.1 Introduction 4 2.2 Chemistry of Chlorine as a Disinfectant 4 2.3 Alternative Disinfectants 7 2.3.1 Chloramines 7 2.3.2 Chlorine dioxide 8 2.3.3 Ozone 8 2.4 DBP Precursors 8 2.4.1 Natural Organic Matter (NOM) 8