Hong Kong’s air quality might not be as good as you think

ओह! यह पोस्ट हिन्दी में उपलब्ध नही हैं।अंग्रेजी संस्करण के हेतु यहाँ क्लिक करे l


The Sqair air purifier Kickstarter

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Another question. I am wondering that to what extent the air quality data are comparable across countries. Perhaps they use somewhat different methods to measure air pollution. Specifically, countries with poor air quality have incentives to use a lenient standard. This helps their image.


I am curious that where you got the data about pollution in HK: 2018年香港PM2.5平均值是30微克。According to the information from the HK official data here,
http://www.aqhi.gov.hk/en/download/air-quality-reportse469.html?showall=&start=1 ,
2018年香港PM2.5平均值is about 20微克