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Updated: Sep 10, 2025

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十年来来源和气溶成分的变化:对快速发展的大城市的清洁空气行动计划的影响

Yanqi Huangfu1, Yingze Tian1, Yuting Wei1

  • 1Key Laboratory of Urban Air Particulate Pollution Prevention and Control of Ministry of Ecology and Environment, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; CMA-NKU Cooperative Laboratory for Atmospheric Environment-Health Research, Tianjin 300350, China.

Journal of environmental sciences (China)
|August 21, 2025
PubMed
概括

成都的颗粒物污染在2007年至2016年间大幅下降. 虽然煤炭燃烧受到控制,但酸盐水平的上升需要对氨和氧化进行管理,以改善未来的空气质量.

关键词:
美国长期数据集多个地点颗粒物来源分配方式

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相关概念视频

Sampling Plans01:23

Sampling Plans

Sampling is a crucial step in analytical chemistry, allowing researchers to collect representative data from a large population. Common sampling methods include random, judgmental, systematic, stratified, and cluster sampling.
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...
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