CE2304 Environmental engineering-I QUESTION BANK Air quality management

Air quality management
Engineers apply scientific and engineering principles to the design of manufacturing and combustion processes to reduce air pollutant emissions to acceptable levels. Scrubbers, electrostatic precipitators, catalytic converters, and various other processes are utilized to remove particulate matter, nitrogen oxides, sulfur oxides, volatile organic compounds (VOC), reactive organic gases (ROG) and other air pollutants from flue gases and other sources prior to allowing their emission to the atmosphere.
Scientists have developed air pollution dispersion models to evaluate the concentration of a pollutant at a receptor or the impact on overall air quality from vehicle exhausts and industrial flue gas stack emissions. To some extent, this field overlaps the desire to decrease carbon dioxide and other greenhouse gas emissions from combustion processes.
Other applications
• Environmental policy and regulation development
• Contaminated land management and site remediation
• Environment, Health and Safety
• Hazardous waste management
• Natural resource management
• Noise pollution
• Risk assessment
• Solid waste management
Water supply and sanitation in India