Monthly Average PM2.5 ( China ) Beijing-Tianjin-Hebei Yangtze Delta FenWei Plain Pearl River Delta Air Quality Index An air quality index (AQI) is used by government agencies[1] to communicate to the public how polluted the air currently is or how polluted it is forecast to become.[2][3...
In this study, we employed seven single models and ensemble learning algorithms and constructed a hybrid learning algorithm, the LSTM-SVR model, totaling eight machine learning algorithms, to predict the Air Quality Index in six major urban agglomerations in China. We comprehensively com...
http://en.wikipedia.org/wiki/Air_quality_index#Mainland_China 中国大陆地区的行政区划参见 assets/area.json 文件,JSON 格式 空气质量指数(AQI)范围及相应的空气质量类别对应表 空气质量指数空气质量状况对健康影响情况建议采取的措施 0~50 优 空气质量令人满意,基本无空气污染 各类人群可正常活动 51~100 良 空...
Xingtai is located in the south of Hebei province in China, located at north latitude 36°50′∼37°47′, east longitude 113°52′∼115°49′ (Fig. 2), which is close to Beijing. There are several major factors that lead to the poor air quality in Xingtai. First, its terrain is...
An AQI (air quality index) is a communication tool. China revised its AQI in 2012 (HJ633- 2012 - on trial). The revised AQI takes into account recent insights in relevant pollutants and the health effects associated to exposure levels. PM2.5 was included in the AQI based on international ...
Xiamen's ecology and environment bureau released on World Environment Day the results of a national assessment of ecological and environmental quality in China last year. Xiamen's comprehensive air quality index was 2.61, ranking sev...
Air Quality Index Prediction Based on an Adaptive Dynamic Particle Swarm Optimized Bidirectional Gated Recurrent Neural Network–China Region 来自 EBSCO 喜欢 0 阅读量: 95 作者:Ping Li,Shengwei Wang,Hao Ji,Yulin Zhan,Honghong Li 摘要: Accurate predictions of the air quality index (AQI) is ...
Air Pollution in China: Real-time Air Quality Index Visual Map, https://aqicn.org/map/china/ (2021). Ministry of Environmental Protection of China. Technical Regulation on Ambient Air Quality Index. (China Environmental Science Press, 2012). Zhang, Q. & Geng, G. N. Impact of clean air ...
The "PM2.5 issue" was the tipping point for China's clean air movement last year and the incentive for implementation of the new Air Quality Index (GB3095-2012). It is necessary to carry out an evaluation of the Chinese new AQI system based on comparison with developed countries and improv...
http://en.wikipedia.org/wiki/Air_quality_index#Mainland_China 中国大陆地区的行政区划参见 assets/area.json 文件,JSON 格式 空气质量指数(AQI)范围及相应的空气质量类别对应表 空气质量指数空气质量状况对健康影响情况建议采取的措施 0~50优空气质量令人满意,基本无空气污染各类人群可正常活动 ...