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首页> 外文期刊>Journal of Pollution Effects & Control >Heavy Metal Concentration in PM2.5 from Firework Displays is a Major Factor of Atmospheric Pollution during Spring Festival in Chengdu, China
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Heavy Metal Concentration in PM2.5 from Firework Displays is a Major Factor of Atmospheric Pollution during Spring Festival in Chengdu, China

机译：烟花汇演中PM2.5中的重金属浓度是中国成都春节期间大气污染的主要因素

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摘要

Firework displays have been reported to dramatically increase atmospheric pollution during the annual Spring Festival in Chengdu, China. It is unclear, however, whether the atmospheric pollution caused by the displays is associated with specific heavy metal elements. To investigate the matter of firework induced atmospheric pollution during Spring Festival in Chengdu in 2017. We determined the major measurement factors of air quality include PM10, PM2.5, PM1.0, meteorological phenomena, and heavy metal elements with the conditions and characteristics of atmospheric pollution. All data was measured under atmospheric quality monitoring and quality control in accordance with the relevant standard of China. On the one hand, we observed the first heavy atmospheric pollutions were impacted by unfavorable meteorological conditions which led to constant generation and accumulation of PM1.0, and an increased concentration of PM2.5. The maximum value of concentration of PM10, PM2.5 and PM1.0 was 302 μg/ m3, 222 μg/m3 and 131 μg/m3 respectively. On the other hand, we measured the maximum value of concentration of PM10, PM2.5 and PM1.0 as 408 μg/m3, 275 μg/m3 and 191 μg/m3, respectively during the second heavy atmospheric pollution. We found that while the concentration of PM2.5 was decreased to 78μg/m3, the heavy metal elements in PM2.5 also declined to 10.6 μg/m3, which was almost the same as the concentration of heavy metal elements before the displays. Moreover, the concentrations of heavy metal elements K, Ca, Cu and Ba were obviously changed in different weather conditions. We observed that the concentrations of K, Ca, Cu and Ba can be decreased to a large extent in the transition from pollution to cleaners, suggesting that the concentration of heavy metal elements in PM2.5 was significantly increased by fireworks during Spring Festival in Chengdu, China. Taken together, firework displays were a major factor of atmospheric pollution, causing the concentration of heavy metal elements in PM10, PM2.5 and PM1.0 to dramatically increase during Spring Festival in Chengdu, China.
机译：据报道，在一年一度的中国成都春节期间，烟火表演会大大增加大气污染。然而，不清楚由显示器引起的大气污染是否与特定的重金属元素有关。为了调查2017年成都春节期间烟花爆竹引起的大气污染问题，我们确定了空气质量的主要测量因子，包括PM10，PM2.5，PM1.0，气象现象和重金属元素，并根据条件和特点大气污染。所有数据均根据中国相关标准在大气质量监测和质量控制下进行测量。一方面，我们观察到最初的重度大气污染受到不利的气象条件的影响，这导致了PM1.0的不断生成和积累，以及PM2.5浓度的增加。 PM10，PM2.5和PM1.0的浓度最大值分别为302μg/ m3、222μg/ m3和131μg/ m3。另一方面，在第二次重度大气污染期间，我们测得的PM10，PM2.5和PM1.0的最大值分别为408μg/ m3、275μg/ m3和191μg/ m3。我们发现，虽然PM2.5的浓度降至78μg/ m3，但PM2.5中的重金属元素也降至10.6μg/ m3，几乎与显示器之前的重金属浓度相同。此外，不同天气条件下重金属元素K，Ca，Cu和Ba的浓度变化明显。我们观察到，从污染到清洁剂的过渡过程中，钾，钙，铜和钡的浓度可以大大降低，这表明成都春节期间烟火显着增加了PM2.5中重金属元素的浓度。 ，中国。总之，烟花汇演是造成大气污染的主要因素，导致成都春节期间PM10，PM2.5和PM1.0中重金属元素的浓度急剧增加。

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