Ua hoʻokuʻu ʻia ka poʻe kamaʻāina ma hope o ka hoʻoheheʻe ʻia ʻana o ka waikawa nitric ma Arizona - akā he aha kēia ʻakika?

Hana ʻia ke ao ʻalani-melemele e ka waikawa nitric ke hoʻoheheʻe ʻia a hana ʻia ke kinoea nitrogen dioxide. Kiʻi kiʻi: Vovantarakan/Shutterstock.com

Ma ka Poalua, Pepeluali 14, ua ʻōlelo ʻia nā kamaʻāina o ke Kalana ʻo Pima ma Arizona Hema e haʻalele a hoʻomaha paha i loko o ka hale ma hope o ka hāʻule ʻana o kahi kaʻa e lawe ana i ka wai nitric acid a hoʻoheheʻe ʻia kona mau mea ma ke alanui a puni.

Ua hana ʻia ka pōʻino ma kahi o 2:43 pm a ua komo kekahi kaʻa kalepa e huki ana i ka "2,000 paona" (~ 900 kilokani) o ka waikawa nitric, i hāʻule, make ka mea hoʻokele a hoʻopilikia i ke ala nui hikina-komohana e hele ana i ka hapa nui o ka Hema o ʻAmelika. Komohana.

ʻO ka poʻe pane mua, ʻo ia hoʻi ʻo Tucson Fire Department a me Arizona Department of Public Safety, ua haʻalele koke i nā poʻe āpau i loko o ka hapalua mile (0.8 mau kilomita) o ka ulia pōpilikia a kauoha i nā poʻe ʻē aʻe e noho i loko o ka hale a e hoʻopau i kā lākou ea a me nā mea wela. ʻOiai ua hoʻokuʻu ʻia ke kauoha "maluhia ma kahi" ma hope, ua manaʻo ʻia e hoʻomau ʻia nā haunaele ma nā alanui e hoʻopuni ana i ka wahi ulia i ka wā e mālama ʻia ai ke kemika weliweli.

ʻO ka waikawa Nitric (HNO3) he wai kala ʻole a ʻino loa i loaʻa i loko o nā hale hana maʻamau a hoʻohana ʻia i nā ʻoihana like ʻole e like me ka mahiʻai, ka mining, a me ka hana kala. Loaʻa pinepine ʻia ka waikawa i ka hana ʻana i nā mea kanu kahi e hoʻohana ʻia ai e hana i ka ammonium nitrate (NH4NO3) a me ka calcium ammonium nitrate (CAN) no nā mea kanu. Hoʻohana ʻia nā mea hoʻomomona a pau no nā meaʻai a no laila ke ulu nui nei ka makemake no lākou i ka piʻi ʻana o ka heluna kanaka o ka honua a kau i ka pono nui i ka hana ʻai.

Hoʻohana ʻia kēia mau mea ma ke ʻano he precursors i ka hana ʻana i nā mea pahū a ua helu ʻia no ka mana hoʻoponopono ʻia i nā ʻāina he nui ma muli o ko lākou hiki ke hoʻohana hewa ʻia - ʻo ammonium nitrate maoli nō ke kumu no ka pahū ʻana o Beirut i 2020.

ʻO ka waikawa Nitric he mea pōʻino i ke kaiapuni a he mea ʻona i ke kanaka. ʻO ka hōʻike ʻana i ka waikawa, e like me ka Centers for Disease Control and Prevention (CDC), hiki ke hoʻonāukiuki i ka maka a me ka ʻili a hiki ke alakaʻi i nā pilikia pulmonary lohi, e like me ka edema, pneumonitis, a me ka bronchitis. ʻO ka paʻakikī o kēia mau pilikia e pili ana i ka nui a me ka lōʻihi o ka ʻike.

Hōʻike ʻia nā kiʻi a me nā kiʻi i paʻi ʻia e nā lālā o ka lehulehu i kahi ao alani-melemele nui e lele ana i ka lewa mai kahi o ka ulia pōpilikia ʻo Arizona. Hoʻokumu ʻia kēia ao e ka waikawa nitric i ka wā e decompose ai a hana i ke kinoea nitrogen dioxide.

He 11 mau lā wale nō ma hope o ke kaʻa ʻana o ke kaʻaahi ukana no Norfolk Southern ma Ohio. Ua alakaʻi ʻia kēia hanana i ka haʻalele ʻana o nā kamaʻāina ʻoiai ʻo ka vinyl chloride i lawe ʻia i loko o ʻelima o nā kaʻa kaʻa i puhi ʻia i ke ahi a hoʻouna i nā plumes o ka hydrogen chloride a me ka phosgene i ka lewa.