Topic
Air pollutant concentrations
About: Air pollutant concentrations is a research topic. Over the lifetime, 1652 publications have been published within this topic receiving 36138 citations.
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TL;DR: In this paper, the grey relational grade of air pollutants from ambient air pollution and roadside air pollution monitoring stations is used to look at the relationship between pollution and transportation, and the results indicated that the ambient and road air quality increased by rose from 1975 to 2004 but less fast than the growth in traffic.
Abstract: Japan's Air Pollution Control Law signed in 1968 prescribes the maximum permissible limits of motor vehicle exhausts as well as establishing mechanisms for monitoring air pollution In this paper, the grey relational grade of air pollutants from ambient air pollution and roadside air pollution monitoring stations is used to look at the relationship between air pollution and transportation. The results indicated that the ambient and roadside air quality increased by rose from 1975 to 2004 but less fast than the growth in traffic. Some of this may be attributable to the legislation but there have also been other measures since 1968 that have also contributed.
84 citations
TL;DR: An appreciable reduction in air pollutant concentrations and emission factors from coal-fired power plants in China is observed over the past two decades, and the drivers from the perspective of policy making, application of removal technologies, tightening of emission standards, technological improvement, monitoring systems, and economic measures are discussed.
84 citations
TL;DR: In this paper, the average total particle number concentrations observed inside the school buses ranged from 7.3 � 10 3 to 3.4 � 10 4 particles cm � 3, depending on engine age and window position.
84 citations
TL;DR: An assessment of air quality of the city Eskişehir indicated that VOC-limited regime was prevailing throughout the city, and only the annual average SO(2) concentration was found to exceed one specific limit value (EU limit for protection of the ecosystem).
83 citations
TL;DR: This study shows that air pollutant concentrations can be accurately predicted by two traffic characteristics and that these models compare favorably with other more complex models in the literature.
83 citations