Ndeipi mhedzisiro yefiberglass pamuviri wemunhu?

Nekuda kwekusagadzikana kwemhando yegirazi fibers, inopwanya kuita mapfupi fiber zvidimbu. Zvinoenderana nekuedza kwenguva refu kwakaitwa neWorld Health Organisation nemamwe masangano, mafiibhi ane dhayamita isingasviki 3 microns uye chikamu cheyero inopfuura 5: 1 inogona kufemerwa mukati memapapu emunhu. Magirazi fibers atinowanzo shandisa akakura kupfuura 3 microns mudhayamita, saka hapana chikonzero chekunyanya kunetseka nezvenjodzi dzemapapu.

In vivo dissolution zvidzidzo zvegirazi fibersvakaratidza kuti microcracks iripo pamusoro pegirazi fibers panguva yekugadzirisa ichawedzera uye yakadzika pasi pekurwiswa kwemvura isina simba yealkaline yemapapu, kuwedzera nzvimbo yavo yepamusoro uye kuderedza simba regirazi fibers, nokudaro kukurumidza kuparara kwavo. Zvidzidzo zvakaratidza kuti girazi fibers inonyungudika zvachose mumapapu mumwedzi 1.2 kusvika ku3.

Zvinoenderana nemapepa ekutsvagisa apfuura, kuratidzwa kwenguva refu (kupfuura gore mune ese ari maviri) kwemakonzo nemakonzo kumhepo ine yakanyanya kuwanda yegirazi fibers (kanopfuura zana kanokwana nharaunda yekugadzira) haina mhedzisiro yakakosha pamapapu fibrosis kana bundu chiitiko, uye chete kuiswa kwegirazi fibers mukati mepleura yemhuka yakaratidza fibrosis mumapapu. Ongororo yedu yehutano yevashandi muindasitiri yegirazi yefiber iri mubvunzo haina kuwana kuwedzera kukuru kwechiitiko chepneumoconiosis, kenza yemapapu, kana pulmonary fibrosis, asi yakaona kuti basa remapapu revashandi vakati rakaderedzwa kana richienzaniswa nehuwandu hwevanhu.

Nyangwegirazi fibersivo pachavo havaisi njodzi kuhupenyu, kusangana kwakananga negirazi fiber kunogona kukonzera kunzwa kwakasimba kwekushatirwa paganda nemeso, uye inhalation yeguruva zvidimbu zvine magirazi fiber zvinogona kutsamwisa nzira dzemhino, trachea, uye huro. Zviratidzo zvekutsamwiswa kazhinji hazvina kujeka uye ndezvenguva pfupi uye zvinogona kusanganisira kukwenya, kukosora kana kufema. Kuratidzwa kwakakosha kune fiberglass yemhepo inogona kuwedzera iripo asima kana bronchitis-semamiriro ezvinhu. Kazhinji, zviratidzo zvinosanganiswa zvinodzikira zvega kana munhu akafumurwa abva kure nekwakabvafiberglasskwenguva yakati.