Hagenbjörk Annika, Malmqvist E, Mattisson K, Sommar Nilsson J, Modig L
Division of Occupational and Environmental Medicine, Department of Public Health and Clinical Medicine, Umeå University, SE-90187, Umeå, Sweden.
Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, SE-221 85, Lund, Sweden.
Environ Monit Assess. 2017 Apr;189(4):161. doi: 10.1007/s10661-017-5872-z. Epub 2017 Mar 13.
Ozone and nitrogen oxides (NO ) are air pollutants with known associations to adverse health effects on humans. Few studies have simultaneously measured ozone and nitrogen oxides with high spatial resolution. The main aim of this paper was to assess the levels and variation of ground-level ozone, NO and NO in two Swedish cities. An additional aim was to describe the levels of these pollutants within and between three different types of measurement sites (regional background, urban background and traffic sites) and within and between different measurement periods of the year. Three weekly sampling campaigns of NO and ozone were conducted simultaneously at 20 sites in two Swedish regions using Ogawa badges. Ozone was measured at 20 additional sites in each area. The median ozone concentration for all measurements was statistically significantly higher in Malmö (67 μg/m) compared to Umeå (56 μg/m), and in both cities, ozone levels were highest in April. Measurement period was a more important factor for describing the variation in ozone concentrations than the type of measurement site. The levels of NO and NO were statistically significantly higher in the Malmö area (8.1 and 12 μg/m) compared to the Umeå area (4.5 and 8.9 μg/m). The levels were generally highest at the sites categorized as traffic, while the variability between different seasons was sparse.
臭氧和氮氧化物（NO ）是已知会对人类健康产生不利影响的空气污染物。很少有研究能同时以高空间分辨率测量臭氧和氮氧化物。本文的主要目的是评估瑞典两个城市地面臭氧、NO和NO 的水平及变化情况。另一个目的是描述这三种污染物在三种不同类型测量站点（区域背景站点、城市背景站点和交通站点）内部和之间以及一年中不同测量时段内部和之间的水平。在瑞典的两个地区，使用小川徽章在20个站点同时进行了为期三周的NO 和臭氧采样活动。在每个区域的另外20个站点测量了臭氧。所有测量的臭氧浓度中位数在马尔默（67μg/m）显著高于于默奥（56μg/m），并且在两个城市中，臭氧水平在4月最高。对于描述臭氧浓度的变化，测量时段比测量站点类型是更重要的因素。马尔默地区的NO和NO 水平（分别为8.1和12μg/m）显著高于于默奥地区（分别为4.5和8.9μg/m）。这些水平通常在归类为交通站点的地方最高，而不同季节之间的变化很小。
