Field Evaluation of the Dust Impacts from Construction Sites on Surrounding Areas: A City Case Study in China
Department of Construction Management, South China University of Technology, Guangzhou 510641, China
Department of Construction Management, Guangzhou University, Guangzhou 510006, China
Department of Building and Real Estate, The Hong Kong Polytechnic University, Hong Kong 999077, China
Department of Construction Management, Harbin Institute of Technology, Harbin 150001, China
Author to whom correspondence should be addressed.
Sustainability 2019, 11(7), 1906; https://doi.org/10.3390/su11071906
Received: 12 March 2019 / Revised: 23 March 2019 / Accepted: 25 March 2019 / Published: 30 March 2019
(This article belongs to the Special Issue Sustainability in Civil Engineering: from Sustainable Materials to Sustainable Structures)
Construction activities generate a large amount of dust and cause significant impacts on air quality of surrounding areas. Thus, revealing the characteristics of construction dust is crucial for finding the way of reducing its effects. To fully uncover the characteristics of construction dust affecting surrounding areas, this study selected seven representative construction sites in Qingyuan city, China as empirical cases for field evaluation. In the experiment, the up-downwind method was adopted to monitor and collect TSP (total suspended particulate), PM10 and PM2.5 (particulate matter ≤10 µm and 2.5 µm in aerodynamic diameter, respectively) concentrations, meteorological data and construction activities of each site for 2 to 3 days and 18 h in a day. The results show that the average daily construction site makes the surrounding areas’ concentration of TSP, PM10 and PM2.5 increase by 42.24%, 19.76% and 16.27%, respectively. The proportion of TSP, PM10 and PM2.5 in building construction dust is 1, 0.239 and 0.116, respectively. The large diameter particulate matter was the major constituent and the distance of its influence was limited. In addition, construction vehicles were one of the main influencing factors for building construction dust. However, building construction dust was not significantly correlated with any single meteorological factor when it did not change too much. Findings of this research can provide a valuable basis for reducing the impact of building construction dust on surrounding areas.