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首页> 外文期刊>American Journal of Environmental Sciences >Annual concentration report and emission sources analysis of the air pollutants measured by the Air Quality Monitoring station.
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Annual concentration report and emission sources analysis of the air pollutants measured by the Air Quality Monitoring station.

机译：空气质量监测站测量的年度污染物浓度报告和排放源分析。

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Problem statement: Air Quality Monitoring (AQM) station at Kasetsart University, Si Racha Campus, Thailand, was routinely monitor the annual concentrations and analysis the emission sources of the air pollutants in the area since 2007. The level of concentration CO, SO2, NOx and O3 were measured. PM10 concentration was measured by mean of TOEM method. The PM10 and TSP (manifold) filters were collected for the measurement of heavy metals adsorbed in the particulate by ICP-AES techniques. Scanning Electron Microscopic (SEM) and Energy Dispersive Spectrometric (EDS) techniques were used to identify the morphologies and elemental compositions of particulate matters from the PM10 and TSP filters. Approach: The annual concentrations of all pollutants were almost real-time reported from July 2007-2008. The O3 concentrations are higher than the standard level (100 ppb) in July 2007 and April 2008 with the value of 109 and 114 ppb, respectively. Average PM10 concentrations are higher than the standard level (120 micro g.m-3) in November 2007, January 2008 and March 2008 with the value of 129, 123 and 125 micro g.m-3, respectively. Strong correlations between NO2 with O3 and between NO2 with PM10 were found. Results: These results showed that NO2 was the precursor of the photochemical reaction and generate O3. NO2 concentrations are found to be corresponding with both O3 and PM10. The directions of O3 emission sources were the southwest, south and southeast due to wind direction, whereas the PM10 are originated from the northwest. The microscopic structures of TSP provided various shapes and dimensions from 0.1 to greater than 100 micro m, while the microstructures of PM10 presented the needle-like and spherical shape. SEM-EDS analysis was able to detect some element (C, O, F, Na, Al, Si and K), while the ICP-AES showed that there were other heavy metals present in the filter sample (Ni, Cu, Zn, Pb and Se). Conclusion: Among the amounts of selected heavy metals, Zn is the most probable among all metals with the value of 1.3891+or-1.6198 micro g . g-1.m-3 in TSP. Amounts of heavy metals in PM10, Cu is dominated with 0.5374+or-0.8084 micro g . g-1.m-3, the others were almost in the same levels and much lower than in TSP. Correlation coefficient between each metal can be estimate the emission source of their particulate matter together with the wind speed and wind direction.
机译：问题陈述：泰国Si Racha校园的Kasetsart大学的空气质量监测（AQM）站自2007年以来一直定期监测该地区的年度浓度并分析其空气污染物的排放源。CO，SO 2 ，NO x 和O 3 。用TOEM法测定PM 10 浓度。收集PM 10 和TSP（歧管）过滤器，通过ICP-AES技术测量颗粒中吸附的重金属。利用扫描电子显微镜（SEM）和能量色散光谱（EDS）技术从PM 10 和TSP过滤器中识别颗粒物的形态和元素组成。方法：从2007年7月至2008年，几乎实时报告了所有污染物的年浓度。 O 3 浓度在2007年7月和2008年4月分别高于标准水平（100 ppb）和109和114 ppb。 2007年11月，2008年1月和2008年3月的平均PM 10 浓度高于标准水平（120 micro gm -3 ），分别为129、123和125 micro gm -3 。发现NO 2 与O 3 之间强烈相关，NO 2 与PM 10 之间密切相关。结果：这些结果表明NO 2 是光化学反应的前体，并产生O 3 。发现NO 2 的浓度与O 3 和PM 10 都相对应。由于风向的影响，O 3 的排放方向分别为西南，南部和东南部，而PM 10 的排放源则来自西北。 TSP的微观结构具有从0.1微米到大于100微米的各种形状和尺寸，而PM 10 的微观结构呈针状和球形。 SEM-EDS分析能够检测某些元素（C，O，F，Na，Al，Si和K），而ICP-AES显示过滤器样品中还存在其他重金属（Ni，Cu，Zn，铅和硒）。结论：在选定的重金属中，锌是所有金属中最可能的锌，其值为1.3891+或-1.6198 micro g。 TSP中的g -1 .m -3 。 PM 10 ，Cu中的重金属含量以0.5374+或-0.8084 micro g为主。 g -1 .m -3 ，其他水平几乎相同，远低于TSP。每种金属之间的相关系数可以估计其颗粒物的排放源以及风速和风向。

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