• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Atmosphere >Temporal and Spatial Patterns of China’s Main Air Pollutants: Years 2014 and 2015
【24h】

Temporal and Spatial Patterns of China’s Main Air Pollutants: Years 2014 and 2015

机译：中国主要空气污染物的时空格局：2014年和2015年

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

China faces unprecedented air pollution today. In this study, a database (SO 2 , NO 2 , CO, O 3 , PM 2.5 (particulate matter with aerodynamic diameter less than 2.5 μm), and PM 10 (particulate matter with aerodynamic diameter less than 10 μm) was developed from recordings in 188 cities across China in 2014 and 2015 to explore the spatial-temporal characteristics, relationships among atmospheric contaminations, and variations in these contaminants. Across China, the results indicated that the average monthly concentrations of air pollutants were higher from November to February than in other months. Further, the spatial patterns of air pollutants showed that the most polluted areas were located in Shandong, Henan, and Shanxi provinces, and the Beijing-Tianjin-Hebei region. In addition, the average daily concentrations of air pollutants were also higher in spring and winter, and significant relationships between the principal air pollutants (negative for O 3 and positive for the others) were found. Finally, the results of a generalized additive model (GAM) indicated that the concentrations of PM 10 and O 3 fluctuate dynamically; there was a consistent increase in CO and NO 2 , and PM 2.5 and SO 2 showed a sharply decreasing trend. To minimize air pollution, open biomass burning should be prohibited, the energy efficiency of coal should be improved, and the full use of clean fuels (nuclear, wind, and solar energy) for municipal heating should be encouraged from November to February. Consequently, an optimized program of urban development should be highlighted.
机译：今天，中国面临着前所未有的空气污染。在这项研究中，从记录中建立了一个数据库（SO 2，NO 2，CO，O 3，PM 2.5（空气动力学直径小于2.5μm的颗粒物）和PM 10（空气动力学直径小于10μm的颗粒物）在2014年和2015年，中国188个城市的大气污染物的时空特征，大气污染物之间的关系以及这些污染物的变化研究了结果，结果显示，11月至2月，中国空气污染物的月平均浓度高于2月。此外，空气污染物的空间格局显示，污染最严重的地区位于山东，河南和山西省以及京津冀地区，此外，空气污染物的日均浓度也较高。在春季和冬季，发现了主要空气污染物之间的显着关系（O 3为负，其他为正）。 ed添加剂模型（GAM）表明，PM 10和O 3的浓度动态变化; CO和NO 2持续增加，PM 2.5和SO 2呈急剧下降趋势。为了最大程度地减少空气污染，应禁止露天燃烧生物质，应提高煤炭的能源效率，并应于11月至2月鼓励使用清洁燃料（核能，风能和太阳能）进行市政取暖。因此，应强调城市发展的优化方案。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号