Institute of Environmental Assessment and Water Research, IDAEA, CSIC, C/Jordi Girona 18, Barcelona 08034, Spain.
J Hazard Mater. 2010 Nov 15;183(1-3):945-9. doi: 10.1016/j.jhazmat.2010.07.082. Epub 2010 Aug 14.
We report on the effect of a major firework event on urban background atmospheric PM(2.5) chemistry, using 24-h data collected over 8 weeks at two sites in Girona, Spain. The firework pollution episode (Sant Joan fiesta on 23rd June 2008) measured in city centre parkland increased local background PM(2.5) concentrations as follows: Sr (x86), K (x26), Ba (x11), Co (x9), Pb (x7), Cu (x5), Zn (x4), Bi (x4), Mg (x4), Rb (x4), Sb (x3), P (x3), Ga (x2), Mn (x2), As (x2), Ti (x2) and SO(4)(2-) (x2). Marked increases in these elements were also measured outside the park as the pollution cloud drifted over the city centre, and levels of some metals remained elevated above background for days after the event as a reservoir of metalliferous dust persisted within the urban area. Transient high-PM pollution episodes are a proven health hazard, made worse in the case of firework combustion because many of the elements released are both toxic and finely respirable, and because displays commonly take place in an already polluted urban atmosphere.
我们报告了一场重大烟花活动对城市背景大气 PM(2.5)化学的影响，使用了在西班牙赫罗纳两个地点收集的 8 周 24 小时数据。在市中心公园进行的烟花污染事件（2008 年 6 月 23 日的圣胡安节）使当地背景 PM(2.5)浓度增加如下：Sr（86 倍）、K（26 倍）、Ba（11 倍）、Co（9 倍）、Pb（7 倍）、Cu（5 倍）、Zn（4 倍）、Bi（4 倍）、Mg（4 倍）、Rb（4 倍）、Sb（3 倍）、P（3 倍）、Ga（2 倍）、Mn（2 倍）、As（2 倍）、Ti（2 倍）和 SO(4)(2-)（2 倍）。当污染云飘过大城市中心时，在公园外也测量到这些元素的明显增加，并且在事件发生后的几天内，一些金属的水平仍高于背景，因为城市区域内存在着金属灰尘的储层。短暂的高 PM 污染事件已被证明对健康构成危害，而烟花燃烧的情况更糟，因为释放的许多元素既有毒又细小可吸入，而且由于表演通常在已经污染的城市大气中进行。
