Abstract
Monitoring air pollutants via plants is an economic, convenient and credible method compared with the traditional ways. Plants show different damage symptoms to different air pollutants, which can be used to determine the species of air pollutants. Besides, pollutants mass concentration scope can be estimated by the damage extent of plants and the span of polluted time. Based on the domestic and foreign research, this paper discusses the principles, mechanism, advantages and disadvantages of plant-monitoring, and exemplifies plenty of such plants and the minimum mass concentration and pollution time of the plants showing damage symptoms. Finally, this paper introduced the human health effects of air pollutants on immune function of the body, such as decrease of the body's immune function, decline of lung function, respiratory and circulatory system changes, inducing and promoting human allergic diseases, respiratory diseases and other diseases.
Highlights
In recent years, with the increase of traffic congestion and industrial waste gas emissions of road vehicles, a number of large and medium-sized cities’ air quality gradually declined, coupled with the frequent occurrence of fog and haze, air pollution is becoming more and more serious an issue [1]
As the name implies, refers to the number of harmful substances in the atmosphere of concentration and residence time more than the allowed range of atmospheric environment, which is beyond the capability of diffusion and dilution of the air, deteriorates the air quality, and brings about bad influence directly or indirectly to human health and ecological environment
Atmospheric pollution is produced by natural processes marked by human activities causing pollution to the atmospheric environment
Summary
With the increase of traffic congestion and industrial waste gas emissions of road vehicles, a number of large and medium-sized cities’ air quality gradually declined, coupled with the frequent occurrence of fog and haze, air pollution is becoming more and more serious an issue [1]. People can’t accomplish at one stroke to improve the air quality by increasing the investment in improving the air quality. People can only follow the prescribed order to conduct rigorous testing of atmospheric pollutants, in order to understand and master the air quality and related issues of people's contact at any time
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