Air quality, heat & cold
AQI bands explained for non-locals, when 'shamal dust' or 'wildfire smoke' should change your plans, and how to travel safely through a heat dome.
- Live11 min readAir quality, for travellers
Reading AQI when you're used to PM2.5 (and vice versa), N95 vs surgical mask in real conditions, and the cities where the quoted number lies.
Sources: WHO · U.S. EPA · ECDC · IQAirOpen the guide → - Live11 min readHeat-dome travel: cities that get dangerous
Wet-bulb temperature in plain English, the cities where summer trips are now seasonally inadvisable, and the cooling protocol when air-con fails.
Sources: U.S. CDC · WHO · NWS · ECDC · UKHSA · BOMOpen the guide →
Every claim in a Safe Trip survival guide cites a source you can re-verify. We start from primary agency guidance (USGS, NOAA, FEMA, WHO, CDC, IFRC, country-level alert services), supplemented by peer-reviewed literature where the agency record is incomplete. Travel-blog content is never used as a source.
/sources lists every dataset feeding our country scores; /methodology describes how scores are computed.