Abstract
This paper attempts to make clear the characteristics of the magnitude and scope of automotive and factory pollutant emissions in Dhaka city-which are creating an environmental problem in the city. About 451 factories in this city discharge and dump hazardous waste with no regard for the resulting surface and ground water or air-pollution. Most of these factories are bereft of adequate emission treatment. In addition, the increasing traffic, inadequate urban transport infrastructure and services, and an aging and obsolete motor vehicle fleet are giving rise to high air pollution levels. About 86% of the total motor vehicles in this city emit black smoke above the International Standard of 65 HSU. Changing meteorological conditions, such as average wind velocities, wind direction and frequency of showers have influenced the pollutant concentration in the city's air. Without effective measures to control pollutant emissions, the city dwellers will be exposed to unhealthy and dangerous levels of air pollution from automobiles and factories.
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