FUGITIVE DUST MONITORING AT UNDER CONSTRUCTION ROADS WITH AND WITHOUT WATER SPRINKLING IN LAHORE CITY

This study investigates the effectiveness of water sprinkling in reducing PM10 levels in Lahore, Pakistan. The data collected over a period of several days shows that water sprinkling significantly reduces PM10 concentrations in the air. The average PM10 value before water sprinkling was consistently above the PEQS, indicating poor air quality. However, after water sprinkling, the average PM10 value decreased by 49%, demonstrating a substantial improvement in air quality. The most notable reduction in PM10 levels was observed during the immediate hours following water sprinkling, suggesting that its effectiveness is most pronounced in the short term. However, the reduction gradually decreased over time as the dust particles settled and the moisture evaporated. While water sprinkling is a viable method for reducing fugitive dust pollution, it is important to consider its limitations and potential drawbacks. Excessive water use can lead to waterlogging and other environmental issues, and its effectiveness may be limited during dry seasons or in regions with limited water resources. Therefore, a combination of control measures, including proper wetting of dusty areas, covering stockpiles of materials, and using dust suppressants, is essential for achieving long-term improvements in air quality.