Air Quality Index (AQI) ndi chiwonetsero cha kuchuluka kwa kuipitsidwa kwa mpweya. Imapereka manambala pamlingo wapakati pa 0 ndi 500 ndipo imagwiritsidwa ntchito kuthandizira kudziwa nthawi yomwe mpweya ukuyembekezeka kukhala wopanda thanzi.
Kutengera miyezo yamtundu wa mpweya wa federal, AQI imaphatikizapo miyeso yazinthu zisanu ndi chimodzi zowononga mpweya: ozoni, carbon monoxide, nitrogen dioxide, sulfure dioxide, ndi miyeso iwiri ya tinthu tating'onoting'ono. Ku Bay Area, zoipitsa zomwe zitha kuyambitsa Spare the Air Alert ndi ozoni, pakati pa Epulo ndi Okutobala, ndi zinthu zina, pakati pa Novembala ndi February.
Nambala iliyonse ya AQI imatanthawuza kuchuluka kwa kuipitsidwa kwa mlengalenga. Pazinthu zisanu ndi chimodzi zowonongeka zomwe zimayimiridwa ndi tchati cha AQI, chiwerengero cha federal chimagwirizana ndi chiwerengero cha 100. Ngati kuchuluka kwa zowonongeka kumakwera pamwamba pa 100, khalidwe la mpweya likhoza kukhala lopanda thanzi kwa anthu.
0-50
Zabwino (G)
51-100
Wapakati (M)
101-150
Zopanda Thanzi kwa Magulu Ovuta (USG)
151-200
Wopanda thanzi (U)
201-300
Zopanda Thanzi Kwambiri (VH)
301-500
Zowopsa (H)
Kuwerenga pansi pa 100 pa AQI sikuyenera kukhudza thanzi la anthu onse, ngakhale kuwerengera pakati pa 50 mpaka 100 kungakhudze anthu omwe ali ndi chidwi kwambiri. Miyezo yopitilira 300 sichitika kawirikawiri ku United States.
Air District ikakonzekera kulosera kwa tsiku ndi tsiku kwa AQI, imayesa kuchuluka komwe kumayembekezeredwa pa chilichonse mwazinthu zazikulu zisanu ndi chimodzi zoipitsa zomwe zili mumlozera, imatembenuza zowerengerazo kukhala manambala a AQI, ndikupereka lipoti lapamwamba kwambiri la AQI pagawo lililonse lochitira lipoti. A Spare the Air Alert imayitanidwa ku Bay Area pomwe mpweya ukuyembekezeka kukhala wopanda thanzi m'magawo asanu aliwonse amderalo.
Kuchokera ku https://www.sparetheair.org/understanding-air-quality/reading-the-air-quality-index
Nthawi yotumiza: Sep-09-2022