Comparing air quality across Taiwan and Hong Kong in one chat

Cross-region querying is where this gets fun: @空氣品質監測月值 for Taiwan monthly averages, @即時空氣質素健康指數 for Hong Kong's live index — one conversation, two catalogs, one chart.

Mind the units (AQHI vs raw concentrations — see the thread from 陳嘉朗), but the fact that I can even do this from one endpoint still feels like cheating.