Track topics on Twitter Track topics that are important to you
Particulate matter (PM) is the primary air pollutant in Beijing, and its emission control is an important direction of air pollution prevention and control. Construction dust plays a significant role in the source of airborne particulate matter in Beijing. Due to population growth and economic development, the demand for residential and office space has been increasing which results in a high construction area in Beijing and dust pollution caused by construction activities. However, there are few studies focusing on fugitive dust emissions from construction sites and their contribution to air pollution in Beijing. Under this background, this paper established an estimation model of dust emission from construction sites, and used the localized emission factor to calculate the dust emission from 2000 to 2015 in Beijing, identified the emission characteristics and laws of construction dust emission and quantified the uncertainty range of the emissions. The WRF/CMAQ model system was used to simulate the contribution of dust pollution to quantify its influence on air quality. The results showed that the dust emission from construction sites in Beijing has been increasing, but the construction area is falling in recent years. However, the emission of PM is still high and needs to be paid enough attention. In the spatial distribution, the dust emissions in summer and autumn are larger than those in other seasons. As for spatial distribution, the construction dust is mainly concentrated in the urban function extension area and suburban area, which is related to the extension of population activities and the gradual development of urbanization. The contribution of construction dust to PM and PM concentration in the ambient air can reach 31.3 μg·m and 9.6 μg·m, respectively. Through scenarios analysis, for further reduction of the emission from construction sites in 2030, more stricter standard for green construction and powerful supervision are needed.
This article was published in the following journal.
Name: Huan jing ke xue= Huanjing kexue
Urban fugitive (road and construction) dust PM samples were collected in 21 cities of seven regions in China. Seven water-soluble ions, eight sub-fractions of carbonaceous components, and 19 elements ...
To explore the element pollution characteristics and sources of road dust fall, road dust fall samples were collected during spring in Tianjin and suspended to obtain PM and PM, 16 elements were analy...
Emission of fugitive iron particles from anthropogenic sources can have significant effects on the human health and the environment. In this study, a regulatory air pollutant dispersion model (AERMOD)...
To study the concentration characteristics as well as sources of elements and heavy metal pollution in atmospheric dust fall in Zhuzhou City, 144 samples from 12 sites in the Zhuzhou urban area were c...
To investigate the pollution characteristics and potential sources in a dusty season, an online analyzer was used to measure trace gases and major water-soluble ions in PM from April 1st to May 29th, ...
Fungal infections in immunocompromised patients occuring during construction activities in hospitals have repeatedly been reported. However, the question of a causal relation between cons...
The study is focussed on two main questions: 1. The importance of dampness of the building and home dust as a factor of the subjects= responses. 2. Can measures used in KL...
House dust mite allergy is a common problem, resulting in asthma, chronic swelling of the eyes, and running nose. We test a possibility to immunize subjects sensitized against house dust m...
Construction workers have the highest rate of smoking among all occupations, and are frequently exposed to a wide range of workplace hazards (e.g. toxins), which interact with smoking to i...
Textile workers are exposed to various harmful substances during work, including cotton dust, which is the dust present in air during the handling or processing of cotton. Previous researc...
Supplies used in building.
The aggregate business enterprise of building.
Standards or regulations for construction which are designed to ensure safety against electrical hazards, fires, etc.
Water pollution from a variety of diffuse sources carried over or through the ground and into water sources such as LAKES; RIVERS; WETLANDS; coastal waters; and GROUNDWATER. Such diffuse sources include roadways and parking lots (GASOLINE; HEAVY METALS; and motor oil), lawns or agricultural land (excess FERTILIZERS, livestock excrement, and PESTICIDES), landfill seepage, and construction sites (chemicals and trash used in construction processes).
Funding resources and procedures for capital improvement or the construction of facilities.