Survey appears to be offline but how they created that map from survey responses makes little sense. It seems overly simplified and exaggerated. Map implies the gas has wide ranging geographical effects (i.e. it travels far from it's point of origin) while a survey would only be able to tell us where the people live who believe they've been affected by the gas.
A survey can't determine where the contact took place or source of the irritants are but it may help indicate areas that need testing.
Wish we could get some solid answers to tge TG issue.
RTHK news reported that the HA public hospitals are full (again) with winter flu cases, so that will increase the ridiculously long waiting lists
https://www.osinthk.org/2019/12/19/t...tear-gas-leak/
Conclusion about tear gas incident in Tuen Mun - likelihood is accidental discharge by the PLA
A recap by HKFP
https://hongkongfp.com/2020/05/01/ex...ore-dangerous/