Tekereza kugabanya ibikorwa bisaba imbaraga nyinshi ukorera hanze niba ufite inkorora, ububabare bwo mu muhogo cyangwa uburyaryate mu maso.
PM₂.₅ igizwe n'uduce duto cyane tw'ibintu turi mu mwuka. Inkomoko yatwo irimo gutwika ibicanwa mu binyabiziga, mu gushyushya amazu no mu nganda, ndetse n'inkongi z'umuriro. Tumwe muri utwo duce dukorwa iyo imyuka ikorana mu kirere. Kuba ari duto cyane bituma dushobora kugera mu ndiba y'ibihaha.