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Assessment of air pollution concentrations from brick kilns using an atmospheric dispersion model

机译：使用大气扩散模型评估砖窑中的空气污染浓度

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Brick manufacturing is traditionally a small-scale and improperly managed industry. Air pollutants, i.e. particulate matters (PM), carbon monoxide (CO) and sulfur dioxide (SO_2) were mainly emitted during the brick firing process. The area of Bang Pu, Nakhon Si Thammarat in southern Thailand was observed to have high numbers of the operating kilns. With substantial low height and conventionally unorganized industry, the nearby communities would be exposed to the adverse environmental and health impacts from local air pollutions. This paper was designed to develop a database of air pollutant emissions and to assess pollutant dispersion of PM_(10), CO and SO_2 from brick kilns in Bang Pu, Nakhon Si Thammarat. Air pollution emission was estimated mainly using IPCC and USEPA guidelines. An AERMOD modeling system was used to simulate pollution dispersions. Results showed that emissions for each brick kiln including PM_(10), CO and SO_2 were ranged between 0.0346-0.0751, 1.3022-3.3603 and 0.1736-0.4481 g/s, respectively. For pollutant dispersions, simulated concentrations for a maximum 1-hour, 24-hour and annual averages were as follows: PM_(10) (13, 1 and 0.2 μg/m~3, respectively); CO (487, 35 and 6 μg/m~3, respectively); and SO_2 (64, 5 and 1 μg/m~3, respectively). The overall assessment showed that the concentrations of pollutants (PM_(10), CO and SO_2) met the National Ambient Air Quality Standards of Thailand. However, for long term health impact reduction, the appropriate prevention and mitigation measures should be implemented to control the concentrations of air pollutants from brick kilns in the area.
机译：传统上，砖块制造是规模较小且管理不当的行业。砖烧制过程中主要排放出空气污染物，即颗粒物（PM），一氧化碳（CO）和二氧化硫（SO_2）。据观察，泰国南部那空是他玛叻的邦普地区有许多正在运转的窑炉。由于高度低且工业通常是无组织的，附近的社区将受到当地空气污染对环境和健康的不利影响。本文旨在开发一个空气污染物排放数据库，并评估那空西他玛叻邦埔砖窑中PM_（10），CO和SO_2的污染物扩散。空气污染排放主要是根据IPCC和USEPA指南估算的。 AERMOD建模系统用于模拟污染扩散。结果表明，每个砖窑（包括PM_（10），CO和SO_2）的排放量分别在0.0346-0.0751、1.3022-3.3603和0.1736-0.4481 g / s之间。对于污染物的扩散，最大1小时，24小时和年平均值的模拟浓度如下：PM_（10）（分别为13、1和0.2μg/ m〜3）; CO（分别为487、35和6μg/ m〜3）;和SO_2（分别为64、5和1μg/ m〜3）。总体评估表明，污染物（PM_（10），CO和SO_2）的浓度符合泰国国家环境空气质量标准。但是，为了长期减少健康影响，应采取适当的预防和缓解措施，以控制该地区砖窑产生的空气污染物浓度。

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