1, first have to find yourself on the Internet website of these published data, see the most suitable is the green breathing (www.pm25.com) and PM25.in (http://www.pm25.in/), the latter even directly provide api interface, you can climb directly call data, but he was scared of the various regulations, to apply until recently, but did not receive a reply, and has recently been server goes down, can not use. Data had to climb a little green breathing. Then crawled data center data, but is the hourly data of the city, not the site.
2, but they climb only collect data from now on, they could not obtain historical data, we had to find someone else to be. First, send a message to pm25 historical data (https://www.aqistudy.cn/historydata/) website contact (2019.7.30), but at the moment (2019.8.1) did not receive a reply. Then I found another site, the world's air pollution: real-time air quality index map (http://aqicn.org/map/world/cn/) , there are super multi-site information, the world 10,000 +, but also the corresponding data acquisition the rules let you fill in a form (2019.7.31), wait for the follow-up, but at the moment (2019.8.1) did not receive a reply.
3, although only two days did not receive a reply quite normal, but still anxious, keep looking. He began to direct the search of historical data on the Internet and found three promising.
The first is the data network (http://www.shu-ju.net/), paid to provide the data, but to download sample data is still very OK, that is what I want.
The second is the Baidu Post Bar has a brother out of this data, I also need to look at the format
The third is to have a big brother CSDN do their own crawler system, great, but also to collect the data needed
4, found the project's GitHub great God who do, there is a SRTP actually do, worship. Save link as follows:
- https://github.com/InLefter/Air_Of_China
- https://github.com/hzexe/openair
- https://github.com/hebingchang/air-in-china
5, with the help of big brother, know almost opened the door, bigwigs have already done that. Know almost link: https: //www.zhihu.com/question/20939327
Tidy up my personal find useful:
- This is the best, there are all Chinese historical air quality data (since 2014/05/13) , and now also update, as well as Chinese historical meteorological data download (since 1942/07) link: http: //beijingair.sinaapp .com /
- Harvard seems to do an archive, data should be mentioned from the top of the world air pollution that site to the data bit messy, but should the site over more time to 2016, link: http: //aqi.cga.harvard .edu / china / about /
- @ Segovia, this is the big brother to share the latest data, has also been updated, save to network drive again, links: HTTPS: // pan.baidu.com/s/1mi2Rjr M
- Qing Yue open data center environment, should be paid: http: //data.epmap.org/