Both engine modifications and specific control technologies have been used to control motor vehicle emissions. These have included engine operation and design factors, engine-based control systems and exhaust gas control systems. Early control efforts were directed to reducing blow-by gases, evaporative emissions and HCs and CO from exhaust systems. 1. Engine Operation and Design: Significant reductions in emissions of CO, [...]
This article throws light upon the top six types of chemical industries. The types are: 1. Inorganic and Organic Chemical Industries 2. Fertilizer Industries 3. Refineries and Petroleum Industry 4. Pesticide Industries 5. Electroplating and Heat Treatment Industries 6. Hydro-Generated Oil and Soap Industries. Chemical Industries: Type # 1. Inorganic and Organic Chemical Industries: (I) Inorganic: Manufacturing of acids, alkalies, [...]
This article throws light upon the twenty-eight main sources of air pollution by industries. Some of the sources are: 1. Fertilizer Complex 2. Cement Factories 3. Thermal Power Stations 4. Sulphuric Acid Industry and Other Industries 5. Aeroplanes 6. Fluoride Industry 7. Nitric Acid Plants 8. Chloralkali Plants 9. Iron and Steel Industry 10. Radioactive Natural Sources and Others. Source [...]