Particles in the air come from

שרים לחלקיקים come as you are- בואו מכל מקום = All

GPT explains (level =C2; CEFR aligned): Airborne particles: all of the above Atmospheric particulates follow an inclusive hiring policy: Saharan dust, diesel soot, smelter fumes—every micron counts. If it can be lofted, it’s in the club. The “all of the above” option is therefore not a convenience but a recognition that the sky is the ultimate mixed feedstock reactor, equal-opportunity in both origins and lung deposition😶‍🌫️