Krivácsy Zoltán, Blazsó Marianne, Shooter David
Department of Earth and Environmental Sciences, University of Veszprém, P.O. Box 158, Veszprém H-8201, Hungary.
Environ Pollut. 2006 Jan;139(2):195-205. doi: 10.1016/j.envpol.2005.05.018. Epub 2005 Aug 8.
In the two biggest New Zealand cities, Auckland and Christchurch, the mass concentration of the PM10 atmospheric aerosol can exceed the 50 microg m(-3) 24 h health guideline in winter. This high pollution level is thought to be caused mainly by old-fashioned domestic heating systems based on wood combustion. Therefore the chemistry of the carbonaceous aerosol has been investigated in several high-pollution level urban situations in order to assess the origin of the pollution. All the high concentration organic tracers, including levoglucosan and dehydroabietic acid, were characteristic for biomass burning. The findings have confirmed via advanced chemical analytical methods that domestic heating can be the main contributor to the high level of wintertime pollution, especially in Christchurch. The results are of great importance in supporting the ambition of authorities and environmental associations to change the domestic heating regimes.
在新西兰最大的两个城市奥克兰和克赖斯特彻奇，冬季大气中PM10气溶胶的质量浓度可能超过每立方米50微克的24小时健康指导值。这种高污染水平被认为主要是由基于木材燃烧的老式家庭供暖系统造成的。因此，为了评估污染来源，已经在几个高污染水平的城市环境中对碳质气溶胶的化学性质进行了研究。所有高浓度有机示踪剂，包括左旋葡聚糖和脱氢枞酸，都是生物质燃烧的特征。通过先进的化学分析方法得出的研究结果证实，家庭供暖可能是冬季高污染水平的主要原因，尤其是在克赖斯特彻奇。这些结果对于支持当局和环境协会改变家庭供暖方式的目标非常重要。
