年份 | 样本量(n) | 平均值 (μg/m3) | 最小值(μg/m3) | 25th点(μg/m3) | 中位点(μg/m3) | 75th点(μg/m3) | 最大值(μg/m3) | 标准差(μg/m3) |
2013 | 477 | 72.917 | 16.244 | 53.264 | 72.025 | 87.404 | 165.649 | 26.108 |
2014 | 928 | 60.577 | 17.062 | 45.888 | 60.771 | 72.961 | 128.857 | 19.913 |
2015 | 1457 | 52.754 | 10.227 | 39.341 | 52.621 | 63.008 | 134.830 | 18.558 |
合计 | 2862 | 58.625 | 10.227 | 43.145 | 56.815 | 71.464 | 165.649 | 21.692 |