Ubuhle besikhumba nokunakekelwa

Isikhumba siyisitho esinesikhathi eside sokuchayeka endaweni engaphandle nendawo enkulu echayeke emoyeni.Iphinde ibe ngesinye sezitho ezinokuchayeka okukhulu okuqondile ku-PM2.5 kanye nesithiyo sokuqala sokuzivikela somzimba womuntu.I-PM2.5 emoyeni inomthelela omkhulu kakhulu esikhumbeni, ikakhulukazi isikhumba sobuso.

Kunezimbotshana ezingaphezu kuka-20,000 esikhumbeni sobuso bomuntu, ezinobubanzi obungama-microns angaba ngu-20-50, lezi zimbotshana ziyisiteshi samafutha afihliwe yizindlala ze-sebaceous ukuze ageleze ebusweni besikhumba;kuyilapho ububanzi bezinhlayiya ze-PM2.5 emoyeni bungaphansi kwama-microns angu-2.5, obuncane kakhulu kunobubanzi be-pores, ngakho-ke izinhlayiya ezinhle zingangena ezimbotsheni, izinwele zezinwele kanye nezindlala ze-sebaceous ngokushelela.

Ucwaningo luye lwabonisa ukuthi izinhlayiya ezihamba emoyeni zingandisa ukukhishwa kwe-sebum, okuholela ezinduna, amakhanda amnyama nezinye izinkinga zesikhumba.

Uma liphakeme izinga lezinhlayiya endaweni ngayinye encane, izinga le-sebum likhuphuka futhi kulula kakhulu ukuphazamiseka kwebhalansi kawoyela namanzi.