Abahlali babaleka emva kokuchitheka kwe-nitric acid e-Arizona-Kodwa Yintoni le Acid?

Ilifu eli-orenji-tyheli liveliswa yi-nitric acid xa libola livelise igesi yenitrogen dioxide. Umfanekiso wekhredithi: Vovantarakan/Shutterstock.com

NgoLwesibini, nge-14 kaFebruwari, abahlali basePima County kuMazantsi e-Arizona baxelelwe ukuba baphume okanye bahlale ezindlini emva kokuba ilori eyayithwele i-nitric acid ewulwelo yantlitheka yaza yachitha imixholo yayo kwindlela ejikelezileyo.

Ingozi yenzeke malunga ne-2: 43 pm kwaye ibandakanya ilori yentengiso edonsa "2,000 pounds" (~900 kilograms) ye-nitric acid, eyantlitheka, yabulala umqhubi kwaye yaphazamisa indlela enkulu empuma-ntshona enqumla kuninzi lwe-US's South. eNtshona.

Abaphenduli bokuqala, kuquka iSebe lezoMlilo laseTucson kunye neSebe lezoKhuseleko loLuntu lase-Arizona, ngokukhawuleza bakhupha wonke umntu ngaphakathi kwesiqingatha sekhilomitha (iikhilomitha eziyi-0.8) zengozi kwaye bayalela abanye ukuba bahlale ngaphakathi kwaye bacime umoya wabo womoya kunye nezifudumezi. Nangona umyalelo “wendawo yokuhlala” uye wasuswa kamva, kulindeleke ukuba kubekho ukuphazamiseka okuqhubekayo kwiindlela ezingqonge indawo yengozi njengoko kujongwana nekhemikhali eyingozi.

Iasidi ye-nitric (HNO3) lulwelo olungenambala noludlaka kakhulu olufumaneka kwiilabhoratri ezininzi eziqhelekileyo kwaye lusetyenziswa kumashishini ahlukeneyo afana nezolimo, imigodi, kunye nokwenziwa kwedayi. I-asidi idla ngokufumaneka ekuveliseni izichumisi apho isetyenziselwa ukuvelisa i-ammonium nitrate (NH4NO3) kunye ne-calcium ammonium nitrate (CAN) kwizichumisi. Phantse zonke izichumisi ezisekelwe kwi-nitrogen zisetyenziselwa ukutya kwaye ngoko kukho imfuno ekhulayo kubo njengoko inani labantu behlabathi lisanda kwaye libeka imfuno enkulu kwimveliso yokutya.

Ezi zinto zikwasetyenziswa njengezandulela kwimveliso yeziqhushumbisi kwaye zidweliswe kulawulo olulawulwayo kumazwe amaninzi ngenxa yesakhono sazo sokusetyenziswa kakubi-i-ammonium nitrate yayiyeyona nto ibangela uqhushumbo lwaseBeirut ngo-2020.

Iasidi ye-nitric iyingozi kwindalo kwaye inetyhefu ebantwini. Ukubonakaliswa kwe-asidi, ngokutsho kwamaZiko oLawulo lweSifo kunye noThintelo (CDC), kunokubangela ukucaphuka kwamehlo kunye nolusu kwaye kunokukhokelela kwimiba eyahlukahlukeneyo yokulibaziseka kwe-pulmonary, njenge-edema, i-pneumonitis, kunye ne-bronchitis. Ubunzima bale miba buxhomekeke kwithamo kunye nobude bexesha lokuvezwa.

Imifanekiso kunye neefoto ezithathwe ngamalungu oluntu zibonisa ilifu elikhulu eli-orenji-tyheli libhabha esibhakabhakeni lisuka kwindawo yengozi yase-Arizona. Eli lifu liveliswa yi-nitric acid xa libola livelise igesi yenitrogen dioxide.

Ukuchitheka kweasidi yenitric kuza kuphela kwiintsuku ezili-11 emva kokuba uloliwe womthwalo waseNorfolk Southern ephumile e-Ohio. Esi siganeko sikwakhokelele ekukhutshweni kwabahlali njengoko ivinyl chloride ebithwelwe kwiimoto zikaloliwe ezintlanu zatsha zaza zathumela iiplanga ezinetyhefu yehydrogen chloride kunye nephosgene emoyeni.